Healthy Rate of Loss
VeryKatie
Posts: 5,961 Member
I see a lot of people commenting on those who have less than 20lb to lose saying they should aim for only 0.5 lb a week for a rate.
I have been unable to find any studies or websites that say is necessary to go that slowly.
Can anyone help me out with this? Is it just a way to make it easier since you can eat more? But I see people say you lose too much muscle if you lose 1 lb a week, but where are the studies?
I've been around for a while (initial loss and a couple babies) so I took it for gospel, but now im curious where that info comes from.
Everything I see online just says generally 1 to 2 lbs a week.
So for example my bmr is 1430. I am eating 1500 a day plus exercise calories. I seem to be losing 1 lb a week still. Though I've only been going for 5 weeks so I'm not sure if any of it is still water. I'm not having any trouble with eating 1500 a day. But I want to know if I should eat a bit more just because anyway. I was also able to stay in maintenance when I wanted to, until I got pregnant. Both pregnancies I gained the recommended amount. So I feel like what I'm doing is sustainable. But I also dont want to lose muscle mass if I don't have to. I dont have a lot of time/desire/energy to exercise and my weights are piled up under a bunch of junk in my unfinished garage (moved them out while we were finishing the basement and probably won't get them set up again till the garage is finished which may or may not happen this year). I used to do Strong Lifts 5x5 and will eventually get back into it when things are set up. I dislike most cardio other than walking and occasionally dancing on Xbox Kinect.
For reference:
Female
5' 6"
31 years old
2 kids (35 months and 16 months old)
Maintenance calories around 2000 (assumed, plus 1 lb a week loss recently kind of confirms it, though the data is newish)
Bmr around 1430
Eating 1500 a day currently plus 50% exercise calories.
Use Libra to see weight trend.
Current weight 135.6 lb
Goal weight 125 lb (pre-pregnancy weight). This is a good weight for me given my body shape.
I use a food scale for some things, spoons/cups for some things, and package weights for somethings and do not intend on using the food scale more heavily since 1) im losing weight just fine 2) I get obsessed and stressed too much when I use it more and 3) I feel like being exact doesn't matter as long as it is working and you're not at risk of eating less than 1200 a day (not for everyone, but it works for me. I used to use the scale a lot more when I was newer to this)...
Thanks!
I have been unable to find any studies or websites that say is necessary to go that slowly.
Can anyone help me out with this? Is it just a way to make it easier since you can eat more? But I see people say you lose too much muscle if you lose 1 lb a week, but where are the studies?
I've been around for a while (initial loss and a couple babies) so I took it for gospel, but now im curious where that info comes from.
Everything I see online just says generally 1 to 2 lbs a week.
So for example my bmr is 1430. I am eating 1500 a day plus exercise calories. I seem to be losing 1 lb a week still. Though I've only been going for 5 weeks so I'm not sure if any of it is still water. I'm not having any trouble with eating 1500 a day. But I want to know if I should eat a bit more just because anyway. I was also able to stay in maintenance when I wanted to, until I got pregnant. Both pregnancies I gained the recommended amount. So I feel like what I'm doing is sustainable. But I also dont want to lose muscle mass if I don't have to. I dont have a lot of time/desire/energy to exercise and my weights are piled up under a bunch of junk in my unfinished garage (moved them out while we were finishing the basement and probably won't get them set up again till the garage is finished which may or may not happen this year). I used to do Strong Lifts 5x5 and will eventually get back into it when things are set up. I dislike most cardio other than walking and occasionally dancing on Xbox Kinect.
For reference:
Female
5' 6"
31 years old
2 kids (35 months and 16 months old)
Maintenance calories around 2000 (assumed, plus 1 lb a week loss recently kind of confirms it, though the data is newish)
Bmr around 1430
Eating 1500 a day currently plus 50% exercise calories.
Use Libra to see weight trend.
Current weight 135.6 lb
Goal weight 125 lb (pre-pregnancy weight). This is a good weight for me given my body shape.
I use a food scale for some things, spoons/cups for some things, and package weights for somethings and do not intend on using the food scale more heavily since 1) im losing weight just fine 2) I get obsessed and stressed too much when I use it more and 3) I feel like being exact doesn't matter as long as it is working and you're not at risk of eating less than 1200 a day (not for everyone, but it works for me. I used to use the scale a lot more when I was newer to this)...
Thanks!
2
Replies
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I see a lot of people commenting on those who have less than 20lb to lose saying they should aim for only 0.5 lb a week for a rate.
I have been unable to find any studies or websites that say is necessary to go that slowly.
Can anyone help me out with this? Is it just a way to make it easier since you can eat more? But I see people say you lose too much muscle if you lose 1 lb a week, but where are the studies?
I've been around for a while (initial loss and a couple babies) so I took it for gospel, but now im curious where that info comes from.
Everything I see online just says generally 1 to 2 lbs a week.
So for example my bmr is 1430. I am eating 1500 a day plus exercise calories. I seem to be losing 1 lb a week still. Though I've only been going for 5 weeks so I'm not sure if any of it is still water. I'm not having any trouble with eating 1500 a day. But I want to know if I should eat a bit more just because anyway. I was also able to stay in maintenance when I wanted to, until I got pregnant. Both pregnancies I gained the recommended amount. So I feel like what I'm doing is sustainable. But I also dont want to lose muscle mass if I don't have to. I dont have a lot of time/desire/energy to exercise and my weights are piled up under a bunch of junk in my unfinished garage (moved them out while we were finishing the basement and probably won't get them set up again till the garage is finished which may or may not happen this year). I used to do Strong Lifts 5x5 and will eventually get back into it when things are set up.
Thanks!
There’s no one size fits all. Some people can tolerate it and some can’t. I stuck to the 0.5 lbs per week for 11 weeks straight and only lost 5 lbs plus my sanity. I personally have to factor in maintenance days too because I can’t do the same thing day in day out and my family eat ALOT. We love parties! Now I’m going in for a 400-500 calorie deficit for about 4 weeks and then one week off. I also just watched one of Abby Pollocks videos on YouTube and she lost 1 lb per week even though she only had 20 lbs to lose and she’s so lean. Its about you and your psychology. I like variety whereas some other people prefer a small deficit every day. If you eat enough protein and lift weights you should maintain muscle mass.3 -
I see a lot of people commenting on those who have less than 20lb to lose saying they should aim for only 0.5 lb a week for a rate.
I have been unable to find any studies or websites that say is necessary to go that slowly.
Can anyone help me out with this? Is it just a way to make it easier since you can eat more? But I see people say you lose too much muscle if you lose 1 lb a week, but where are the studies?
I've been around for a while (initial loss and a couple babies) so I took it for gospel, but now im curious where that info comes from.
Everything I see online just says generally 1 to 2 lbs a week.
So for example my bmr is 1430. I am eating 1500 a day plus exercise calories. I seem to be losing 1 lb a week still. Though I've only been going for 5 weeks so I'm not sure if any of it is still water. I'm not having any trouble with eating 1500 a day. But I want to know if I should eat a bit more just because anyway. I was also able to stay in maintenance when I wanted to, until I got pregnant. Both pregnancies I gained the recommended amount. So I feel like what I'm doing is sustainable. But I also dont want to lose muscle mass if I don't have to. I dont have a lot of time/desire/energy to exercise and my weights are piled up under a bunch of junk in my unfinished garage (moved them out while we were finishing the basement and probably won't get them set up again till the garage is finished which may or may not happen this year). I used to do Strong Lifts 5x5 and will eventually get back into it when things are set up.
Thanks!
There’s no one size fits all. Some people can tolerate it and some can’t. I stuck to the 0.5 lbs per week for 11 weeks straight and only lost 5 lbs plus my sanity. I personally have to factor in maintenance days too because I can’t do the same thing day in day out and my family eat ALOT. We love parties! Now I’m going in for a 400-500 calorie deficit for about 4 weeks and then one week off. I also just watched one of Abby Pollocks videos on YouTube and she lost 1 lb per week even though she only had 20 lbs to lose and she’s so lean. Its about you and your psychology. I like variety whereas some other people prefer a small deficit every day. If you eat enough protein and lift weights you should maintain muscle mass.
I'm not currently set up to lift weights. I eat 75+ g of protein a day and higher fat. I use a weekly average for 1500 a day rather than doing exactly 1500 a day.
The main question will i lose more muscle at 1 lb a week than 0.5 lb a week without lifting... i will probably lose my mind and give up if I lose as slowly as 0.5 lb a week tbh...0 -
I see a lot of people commenting on those who have less than 20lb to lose saying they should aim for only 0.5 lb a week for a rate.
I have been unable to find any studies or websites that say is necessary to go that slowly.
Can anyone help me out with this? Is it just a way to make it easier since you can eat more? But I see people say you lose too much muscle if you lose 1 lb a week, but where are the studies?
I've been around for a while (initial loss and a couple babies) so I took it for gospel, but now im curious where that info comes from.
Everything I see online just says generally 1 to 2 lbs a week.
So for example my bmr is 1430. I am eating 1500 a day plus exercise calories. I seem to be losing 1 lb a week still. Though I've only been going for 5 weeks so I'm not sure if any of it is still water. I'm not having any trouble with eating 1500 a day. But I want to know if I should eat a bit more just because anyway. I was also able to stay in maintenance when I wanted to, until I got pregnant. Both pregnancies I gained the recommended amount. So I feel like what I'm doing is sustainable. But I also dont want to lose muscle mass if I don't have to. I dont have a lot of time/desire/energy to exercise and my weights are piled up under a bunch of junk in my unfinished garage (moved them out while we were finishing the basement and probably won't get them set up again till the garage is finished which may or may not happen this year). I used to do Strong Lifts 5x5 and will eventually get back into it when things are set up.
Thanks!
There’s no one size fits all. Some people can tolerate it and some can’t. I stuck to the 0.5 lbs per week for 11 weeks straight and only lost 5 lbs plus my sanity. I personally have to factor in maintenance days too because I can’t do the same thing day in day out and my family eat ALOT. We love parties! Now I’m going in for a 400-500 calorie deficit for about 4 weeks and then one week off. I also just watched one of Abby Pollocks videos on YouTube and she lost 1 lb per week even though she only had 20 lbs to lose and she’s so lean. Its about you and your psychology. I like variety whereas some other people prefer a small deficit every day. If you eat enough protein and lift weights you should maintain muscle mass.
I'm not currently set up to lift weights. I eat 75+ g of protein a day and higher fat. I use a weekly average for 1500 a day rather than doing exactly 1500 a day.
The main question will i lose more muscle at 1 lb a week than 0.5 lb a week without lifting... i will probably lose my mind and give up if I lose as slowly as 0.5 lb a week tbh...
Yes you will that’s why I suggest you buy a pair of dumbbells/kettle bell or resistance bands or you can use your own body weight. Nerd fitness have a good at home body weight workout. I understand gyms are closed at the moment so this is the best we can do.1 -
I see a lot of people commenting on those who have less than 20lb to lose saying they should aim for only 0.5 lb a week for a rate.
I have been unable to find any studies or websites that say is necessary to go that slowly.
Can anyone help me out with this? Is it just a way to make it easier since you can eat more? But I see people say you lose too much muscle if you lose 1 lb a week, but where are the studies?
I've been around for a while (initial loss and a couple babies) so I took it for gospel, but now im curious where that info comes from.
Everything I see online just says generally 1 to 2 lbs a week.
So for example my bmr is 1430. I am eating 1500 a day plus exercise calories. I seem to be losing 1 lb a week still. Though I've only been going for 5 weeks so I'm not sure if any of it is still water. I'm not having any trouble with eating 1500 a day. But I want to know if I should eat a bit more just because anyway. I was also able to stay in maintenance when I wanted to, until I got pregnant. Both pregnancies I gained the recommended amount. So I feel like what I'm doing is sustainable. But I also dont want to lose muscle mass if I don't have to. I dont have a lot of time/desire/energy to exercise and my weights are piled up under a bunch of junk in my unfinished garage (moved them out while we were finishing the basement and probably won't get them set up again till the garage is finished which may or may not happen this year). I used to do Strong Lifts 5x5 and will eventually get back into it when things are set up.
Thanks!
There’s no one size fits all. Some people can tolerate it and some can’t. I stuck to the 0.5 lbs per week for 11 weeks straight and only lost 5 lbs plus my sanity. I personally have to factor in maintenance days too because I can’t do the same thing day in day out and my family eat ALOT. We love parties! Now I’m going in for a 400-500 calorie deficit for about 4 weeks and then one week off. I also just watched one of Abby Pollocks videos on YouTube and she lost 1 lb per week even though she only had 20 lbs to lose and she’s so lean. Its about you and your psychology. I like variety whereas some other people prefer a small deficit every day. If you eat enough protein and lift weights you should maintain muscle mass.
I'm not currently set up to lift weights. I eat 75+ g of protein a day and higher fat. I use a weekly average for 1500 a day rather than doing exactly 1500 a day.
The main question will i lose more muscle at 1 lb a week than 0.5 lb a week without lifting... i will probably lose my mind and give up if I lose as slowly as 0.5 lb a week tbh...
Yes you will that’s why I suggest you buy a pair of dumbbells/kettle bell or resistance bands or you can use your own body weight. Nerd fitness have a good at home body weight workout. I understand gyms are closed at the moment so this is the best we can do.
I own weights but can't set them up right now. I can start with body weight (you are your own gym). My youngest child just started sleeping through the night after 15 months so I've been trying to catch up from not sleeping through the night myself for 2.5 years (dealing with getting my sleep cycle refular so the insomnia lessens). This is why I said I dont have a lot of desire to exercise right now. Maybe in a month or 2.
Specifically im looking for the research that says I would lose more muscle at 1 lb vs 0.5. I can't find it myself through Google. What is the likely amount difference?4 -
It is a general guideline. Without knowing everything about every user that comes in here wanting to lose, it is the safest recommendation since we don't know the person's medical history, how they handle large deficits, any eating issues and so forth. Some people would be able to handle a larger deficit without consequence, others would struggle, possibly lose weight quickly, lose muscle and risk regain (and then some). So in general a slower rate of loss can help prevent muscle loss and help sustainability when they get to goal. That being said many bodybuilders can adhere to a steeper deficit close to goal however they are usually under the eye of a coach, it is short term, they are willing to lose a bit of muscle in the process to get leaner and they have experience (that being said there are many that regain and balloon after shows and some have disordered eating as a result so I probably wouldn't look to them as a standard).
You are similar stats to me and I have gone periods of time where I lost 0.75-1lb per week. Keep in mind this was short term, I was eating a lot of protein for my stats (150-170g per day) and lifting at least 4x per week to prevent muscle loss. There were also plenty of weeks where my weight loss was slower, and I took many diet breaks along the way.
In your specific case, if you are lifting/resistance training (and your workout performance isn't suffering), you are getting adequate protein (I would aim a bit high since you are close to goal 1g per lb goalweight) then you will reduce your chances of muscle loss. If you aren't lifting or stimulating your muscles with any exercise, you will definitely lose muscle even if going slowly especially going more quickly. It really depends on why you want to get lower in weight, since you are not near overweight if it's for aesthetics then I would reconsider weight loss altogether until you get back into the gym (or definitely incorporate some type of resistance training) since you will lose muscle and might not be happy when you get to goal. But it's up to you and your goals and reasons for weight loss.
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You've probably also seen the comments to limit rate of loss to 1% of BW - but thinking that out, that also breaks down at some point.
So someone at last 10 lbs, say 160 to 150, could safely lose 1.6 lbs weekly?
That obviously flies in the face of 0.5 lb for last 10-15 lbs (I never saw starting at 20 BTW).
And most would see that a 750 cal deficit that close would be stressful on body - and even with enough protein and lifting - risk losing some muscle mass.
So even that 1% idea has been shown to be better if it's smaller the closer you are to healthy weight.
https://community.myfitnesspal.com/en/discussion/447514/athletes-can-gain-muscle-while-losing-fat-on-deficit-diet/p1
So if this is athletes in a training program - were would you be in comparison?
I'd suggest if you have enough protein and are sure of the deficit - 1 lb weekly down to 10 lbs left not bad.
Depending on your bodies other stresses.
If you stop losing 1 lb weekly with good data showing it should be - then body is adapting and you aren't burning as much, and/or you are gaining stress-induced cortisol water weight increases.
Either of those is a response by a body under stress - not good.
Back off, perhaps back to new maintenance level.
Then just diet off and on a week at a time - going for 1 lb weekly when in a diet.
That's why many like the 5:2 diet, 22% overall deficit, but with 5 days eating at maintenance, not as bad a hardship for them.
Shoot, if body is healthy, and you took a diet break prior, some have done 2 lb weekly for like last 10 lbs, every other week. But you get that diet break in hopefully before body responds negatively.
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Also I don't know if you will find strict research. I have seen you should not lose more than 1% of your bodyweight per week to prevent muscle loss but that is in average to higher bodyfat individuals and I would imagine we are talking about people who are lifting and getting a certain minimum protein. Very lean individuals should go slower.
Maybe someone can dig some research up since I don't have access to it now. But in general without strict numbers, the leaner you are the more at risk you are for muscle loss with higher deficits (even with adequate training and protein). Of course I am sure there are exceptions but I would not bank on being the exception!6 -
Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
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I’ll see if I can find some of the discussions where those studies were referenced. But the search function (particularly with a very prolific poster) isn’t always perfect.2
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I'm a not very tall, not very heavy, not very young woman. Mpf sets my maintenance calories at around 1540 calories per day. If I wanted to slim down a bit and chose a 1lbs goal per week I'd only have 1040 calories to eat per day. That's very, very little. It's certainly something that would make me feel hungry and give up very quickly. I doubt I'd get all nutrition I need. Hey, small children eat more than that.3
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In with endorsement for what Sardelsa, Duck_Puddle, and heybales said, and I'd note the science-related aspects in those posts.
But wanting to add this: It's about bets, not certainty. It's about hedging bets.
It's very likely (virtually certain) IMO that there's no universal decisive point where a deficit is "too much". So, it's about managing risk.
Think about it: Some people respond more quickly than others to a hypertrophy (mass-building) strength program. Why? Certainly diet, intensity, consistency, stage of training, and others . . . but also genetics. In the horrifying cases in history where there has been mass starvation, has everyone of similar age and size succumbed at the same time? No. Why? Probably lots of variables, with starting overall robustness and genetics likely quite high on the list.
So, if you have goals, you, as an individual, need to decide how to place your bets, and whether to hedge them.
Generically, with loss rate, IMO, among the general population on MFP, the risks of "too fast" are most importantly health risks, on a scale from more minor (fatigue) to very extreme (heart failure, even at not super big extremes if an unknown health vulnerability); the risks of "too slow" are primarily frustration, stress, irritation. (I'll leave out those needing to lose super fast for health reasons, because they should be a special case, under close medical supervision).
In either scenario, there's a risk of the person giving up, either because fast loss is unsustainable for them (hunger, compensatory binges, sense of missing out, whatever), or because slow loss is too unrewarding to bother and makes loss seem impossible (amongst fluctuations).
On the flip side of that, giving advice to others, we're responding to people we don't know at all (full health history, most importantly), they're commonly not under close medical monitoring, and sometimes they've gotten ideas about weight loss from truly irresponsible reality TV shows and parts of the blogosphere. So, conservative advice seems like a good idea, to me: I don't want to drive someone unknowingly into health problems, it's a counterbalance to the popular "lose 20 pounds in a month!!" headlines in the check-out line, etc.
That's where the rules of thumb come from: The science is an aspect of it, but it's a simplification, a conservative generality. There's no magical switch that makes a pound a week universally safe at (whatever) 25 pounds to goal, but unsafe at 10 pounds to goal.
You know yourself best: All your demographics, all your health history (except any as-yet-unknowns, of course), how your body handles physical stress, what your overall context of other stress is (both physical and psychological stress is relevant), how difficult things might be for you personally with your lifestyle if you experience loss of energy and it takes some weeks to recover, and more.
In your personal case, you say you'd prefer not to lose muscle. The standard prescription to avoid that is "enough protein, strength training, not-too-fast loss", all of which improve the odds of keeping relatively more lean mass while continuing to lose weight. You seem to want to stay a little aggressive (as compared to MFP rules of thumb) on the loss rate side, and you say you don't have a desire to increase exercise right now, and are not strength training.
If you think you can lose a pound a week, stay healthy, and achieve your "keep muscle" goal, it's your bet, your risk tolerance, your desire to hedge your bets.
On the "giving advice" side, I'm a bit of a skeptic that that's optimal, but it's still your bet. Let us know how it works out, eh? Perhaps you can add to the cumulative folk knowledge around here (though a science-based analysis would call for pre- and post- DEXA scan for proof ).
Best wishes for continuing success! :flowerforyou:8 -
Duck_Puddle wrote: »Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
I think this is the kind of study you are referring to:
https://pubmed.ncbi.nlm.nih.gov/15615615/
As you get leaner, a large deficit puts you in danger of exceeding the amount of body fat you can access and utilize in a day. Then...lean mass gets sacrificed.6 -
Duck_Puddle wrote: »Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
I think this is the kind of study you are referring to:
https://pubmed.ncbi.nlm.nih.gov/15615615/
As you get leaner, a large deficit puts you in danger of exceeding the amount of body fat you can access and utilize in a day. Then...lean mass gets sacrificed.
Thanks! So... it looks like about 70 cals/kgd (290 kj/kgd) which is ... hm. Nope I can't be right. Must be just fat mass ... lol I gotta read this better. Otherwise thats 4000 calories decifit a day and that makes no sense. ...
I think i cannot do math while watching the Wiggles...
Ok say its fat mass. And I'm 25% (a total guess). If im 61 ish kg. Then I have about 15.3 kg fat. So at 69 kcal/kgd I can lose from mostly fat up to 1000 cals a day.
Which... still seems rather high since I dont intend to lose more than 1 lb a week for sure... because. Food. Happiness.
I feel like i must be interpreting it wrong.
Because even if I assume 15% fat... thats still 638 calories today. I wonder if those assumed percents include water or something. Or is it still saying you lose ffm too. Brain not working at the moment.
Now that i had your link I found this following post that I'm going to read!
https://community.myfitnesspal.com/en/discussion/916230/study-suggests-you-can-run-larger-deficit-than-we-think
Either way i have a headache today so I am eating maintence today lol. Maybe I will increase a bit till I get exercising... i just really didn't want to buy a whole new wardrobe before I go back to work at the end of July. Petty I know.1 -
Duck_Puddle wrote: »Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
I think this is the kind of study you are referring to:
https://pubmed.ncbi.nlm.nih.gov/15615615/
As you get leaner, a large deficit puts you in danger of exceeding the amount of body fat you can access and utilize in a day. Then...lean mass gets sacrificed.
Thanks! So... it looks like about 70 cals/kgd (290 kj/kgd) which is ... hm. Nope I can't be right. Must be just fat mass ... lol I gotta read this better. Otherwise thats 4000 calories decifit a day and that makes no sense. ...
I think i cannot do math while watching the Wiggles...
Ok say its fat mass. And I'm 25% (a total guess). If im 61 ish kg. Then I have about 15.3 kg fat. So at 69 kcal/kgd I can lose from mostly fat up to 1000 cals a day.
Which... still seems rather high since I dont intend to lose more than 1 lb a week for sure... because. Food. Happiness.
I feel like i must be interpreting it wrong.
Because even if I assume 15% fat... thats still 638 calories today. I wonder if those assumed percents include water or something. Or is it still saying you lose ffm too. Brain not working at the moment.
Now that i had your link I found this following post that I'm going to read!
https://community.myfitnesspal.com/en/discussion/916230/study-suggests-you-can-run-larger-deficit-than-we-think
Either way i have a headache today so I am eating maintence today lol. Maybe I will increase a bit till I get exercising... i just really didn't want to buy a whole new wardrobe before I go back to work at the end of July. Petty I know.
Suggest you read the whole thread, and the out-links, not just the top post.2 -
The one thing I never liked about that "study" is it's not really a study.
The guys took the data from a study (MN starvation experiment) and extrapolated some theories from it.
That was never tested on anyone. Not really a study.
And it doesn't have to be tested to max limit for months on end starving people - that would never fly before a review board anyway.
And from the original study data, the means of getting to fat mass lost made their data points kind of iffy to base their formula on. I thought anyway.
Compared to other studies that have done their BF lost and weight lost and seemed to show it doesn't always apply.
One major bugaboo is the fact Fat Free Mass (LBM) includes water - you start using more carbs you are going to release more water that was bound to them in storage.
Ok fine you've lost LBM - water. Shouldn't count in any math dealing with fat loss.
And after that complaining - here's a calc to make it easier to see what they are saying.
http://www.weightrainer.net/losscalc.html
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Duck_Puddle wrote: »Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
I think this is the kind of study you are referring to:
https://pubmed.ncbi.nlm.nih.gov/15615615/
As you get leaner, a large deficit puts you in danger of exceeding the amount of body fat you can access and utilize in a day. Then...lean mass gets sacrificed.
Thanks! So... it looks like about 70 cals/kgd (290 kj/kgd) which is ... hm. Nope I can't be right. Must be just fat mass ... lol I gotta read this better. Otherwise thats 4000 calories decifit a day and that makes no sense. ...
I think i cannot do math while watching the Wiggles...
Ok say its fat mass. And I'm 25% (a total guess). If im 61 ish kg. Then I have about 15.3 kg fat. So at 69 kcal/kgd I can lose from mostly fat up to 1000 cals a day.
Which... still seems rather high since I dont intend to lose more than 1 lb a week for sure... because. Food. Happiness.
I feel like i must be interpreting it wrong.
Because even if I assume 15% fat... thats still 638 calories today. I wonder if those assumed percents include water or something. Or is it still saying you lose ffm too. Brain not working at the moment.
Now that i had your link I found this following post that I'm going to read!
https://community.myfitnesspal.com/en/discussion/916230/study-suggests-you-can-run-larger-deficit-than-we-think
Either way i have a headache today so I am eating maintence today lol. Maybe I will increase a bit till I get exercising... i just really didn't want to buy a whole new wardrobe before I go back to work at the end of July. Petty I know.
Suggest you read the whole thread, and the out-links, not just the top post.
Yeah i read it all and basically... is said thats just a maximum for obese people... so it wouldnt really apply to me.
I'm just so curious where it comes from and what the theoretical overall difference in muscle loss would be if i continue eating 1500 a day vs 1700 a day with the same activity level... which basically consists of pushing 70 lb strollers on flat ground, carrying 55 lbs of kids up and down the stairs a million times a day, and diving at children as they are about to dive off the couch.1 -
Duck_Puddle wrote: »Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
I think this is the kind of study you are referring to:
https://pubmed.ncbi.nlm.nih.gov/15615615/
As you get leaner, a large deficit puts you in danger of exceeding the amount of body fat you can access and utilize in a day. Then...lean mass gets sacrificed.
Thanks! So... it looks like about 70 cals/kgd (290 kj/kgd) which is ... hm. Nope I can't be right. Must be just fat mass ... lol I gotta read this better. Otherwise thats 4000 calories decifit a day and that makes no sense. ...
I think i cannot do math while watching the Wiggles...
Ok say its fat mass. And I'm 25% (a total guess). If im 61 ish kg. Then I have about 15.3 kg fat. So at 69 kcal/kgd I can lose from mostly fat up to 1000 cals a day.
Which... still seems rather high since I dont intend to lose more than 1 lb a week for sure... because. Food. Happiness.
I feel like i must be interpreting it wrong.
Because even if I assume 15% fat... thats still 638 calories today. I wonder if those assumed percents include water or something. Or is it still saying you lose ffm too. Brain not working at the moment.
Now that i had your link I found this following post that I'm going to read!
https://community.myfitnesspal.com/en/discussion/916230/study-suggests-you-can-run-larger-deficit-than-we-think
Either way i have a headache today so I am eating maintence today lol. Maybe I will increase a bit till I get exercising... i just really didn't want to buy a whole new wardrobe before I go back to work at the end of July. Petty I know.
Suggest you read the whole thread, and the out-links, not just the top post.
Yeah i read it all and basically... is said thats just a maximum for obese people... so it wouldnt really apply to me.
I'm just so curious where comes from and what the theoretical overall muscle difference in muscle loss would be if i continue eating 1500 a day vs 1700 a day with the same activity level... which basically consists of pushing 70 lb strollers on flat ground, carrying 55 lbs of kids up and down the stairs a million times a day, and diving at children as they are about to dive off the couch.
It's a confusing thread (including some posts by confused people). I don't think that what I bolded is true of the study cited in the OP of that thread. I think what heybales said is corrected: Based on Minnesota starvation experiment. But still wouldn't necessarily apply to you in any practical way, for other reasons he mentioned.
In particular, in the thread you linked, I think there was confusion in the comments between the OP study, and a later study that was linked about obese people in extreme deficits who were strength training. (That one doesn't really apply to you either. ).
I still don't think there's a study that will answer your exact question. Repeating myself: Bets, and bet hedging.
@heybales: Interesting calculator. I understand that the same limitations still apply.1 -
I was never very happy with the so much fat in a day study because I tried and failed to find other studies that directly confirmed the findings.
However it remains a fact that we lose both fat and non fat mass at a better ratio when more fat is available and at an increasingly worse ratio when less fat is available. And a downright beyond detrimental ratio at sufficiently underfat territory
Lean mass is not only muscle.
Muscle is not always skeletal muscle.
Rules of thumb are rules of thumb.
General recommendations are meant to first lessen harm.
Failure to succeed in weight loss is not always the worst harm.
You will retain the most lean mass by eating close to 1g of protein per lb of lean mass, engaging in resistance training and losing slower.
The rest is a continuum. You can only control the preconditions that go into the attempt, not the results.
If you're interested in what choices I made for myself, I moved from BMI 25.5 to 23.7 over a full year at less than 1lb a MONTH. And from 23.7 to 23.2 in 90 days at the rate of 1.33lbs a month. Lack of resistance training being a factor. and desire to try to circumvent compensatory hunger on completion being another. Before that, I moved from infinite BMI to about 26 at an average deficit of closer to 25% than 20%.
For the record, assuming you have some available fat (so guided by you being not too lean pre-pregnancy), and assuming you have being at an increasing or steady weight for an appreciable length of time (in other words you're not at the tail end of a weight loss), and assuming you haven't had issues in the past because of restriction (propensity to binge-eat as an example, food ideation or similar thoughts, desire to find control in your environment by controlling your body), and assuming you're in a good mental state and calm and happy, and assuming you're willing and able to modify your goals if you start finding it more difficult as opposed to getting invested and doubling down, and assuming you don't think that you're going to lose really fast by not eating for a week or two and then go back to eating the way you were before while you were gaining weight to maintain... and assuming all the hundreds of things why it makes sense to suggest prudence in an environment where everybody only thinks in terms of faster weight loss, seeing quick results, and moving on.... assuming all that. starting off for the first half of your weight loss at a faster rate? I doubt that it will make a prohibitive difference in the amount of lean mass that you will lose.
Does it make sense to me to taper at or near goal ? Yes it does. So I would still go faster for the first half and slow down into normalcy for the second unless the whole thing is incredibly slow in the first place in which case the tapering into normalcy is already taking place
Will you lose more lean mass by going at 1lb vs 0.5? Probably. but I don't have an expectation that it would be a major/prohibitive difference.
our bodies are really good at defending against weight loss. And needing to maintain a loss for at least a couple of years before things settle down I think is very real. And that's where tapering and slow loss comes into play
most people who can't contemplate spending a few months losing 5 or 10 lb to goal are also not prepared to spent two plus years being vigilant about defending that loss
Think of it this way: for most it means that they don't have in place the appropriate framework to continue doing whatever it was that they were doing to manage their weight.
Does everybody need a framework to continue to maintain their weight? Of course not. Though probably more people who have found MFP do, as compared to the general population!
Again you're trying to address most people.
The most common scenarios having to do with failure involve trying to apply unsustainably large deficits in an unsustainable manner while engaged in unsustainable types of activity...
Do I think that a 4-500 Cal loss rate out of a tdee of 2k is too much? It comes to between 20 and 25%. Aggressive-ish. Not insane.6 -
I'm interested in OP's question about of sources for the ~30kcal/lb fat/day rule of thumb, but I wanted to jump in to emphasize one detail OP mentioned that didn't generate much discussion -- sleep. It is so important. It's huge. No amount of willpower can overcome the hormonal implications. I think you are smart to get your sleep situation nailed down before taking on a fitness goal. My rule for myself has been I have no business exercising if I'm not getting enough sleep. Sleep comes first. Just wanted to validate your priorities on that.5
-
Duck_Puddle wrote: »Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
I think this is the kind of study you are referring to:
https://pubmed.ncbi.nlm.nih.gov/15615615/
As you get leaner, a large deficit puts you in danger of exceeding the amount of body fat you can access and utilize in a day. Then...lean mass gets sacrificed.
That’s good but it’s not quite what I was thinking of.
There’s a particular thread I’m thinking of where a number of these things were brought up and discussed (it was an OP asking a question similar to this thread - but I believe OP was male and wanted to run a very significant deficit).
There was discussion about the Minnesota starvation study piece but also something by maybe Alan Aragon (but don’t quote that because I’m still trying to find the discussion-and I don’t think his was a study but more empirical observations) providing more realistic/actionable numbers. With links to some sources of info/studies/etc. The discussion was fairly recent (in my terms-last 2-ish years probably).
It was a really good discussion so I hope I can find it.
With my luck though, the thread is one that digressed into memes, gifs and name calling and got deleted, but I’ll keep looking.1 -
Duck_Puddle wrote: »Back in the days of Anvilhead and others, there were links and discussions of studies that showed a max of how much fat can actually be burned in a day. These values ranged from 11-26 calories per pound of body fat (the higher number from the starvation study).
The .5-1% max loss rate, combined with the max amount of fat one can even actually burn, combined with the lowest intake where one can still get enough vitamins/minerals to be “healthy” and you’re probably going to end up pretty close to the generic ranges that are commonly given.
However-if you have to make weight for something, don’t care if you keep your muscle, are willing to sacrifice some health to get to goal, or have some other unique situation, or are usually tall (or some other unique physical characteristic), you can lose faster.
I think this is the kind of study you are referring to:
https://pubmed.ncbi.nlm.nih.gov/15615615/
As you get leaner, a large deficit puts you in danger of exceeding the amount of body fat you can access and utilize in a day. Then...lean mass gets sacrificed.
Thanks! So... it looks like about 70 cals/kgd (290 kj/kgd) which is ... hm. Nope I can't be right. Must be just fat mass ... lol I gotta read this better. Otherwise thats 4000 calories decifit a day and that makes no sense. ...
I think i cannot do math while watching the Wiggles...
Ok say its fat mass. And I'm 25% (a total guess). If im 61 ish kg. Then I have about 15.3 kg fat. So at 69 kcal/kgd I can lose from mostly fat up to 1000 cals a day.
Which... still seems rather high since I dont intend to lose more than 1 lb a week for sure... because. Food. Happiness.
I feel like i must be interpreting it wrong.
Because even if I assume 15% fat... thats still 638 calories today. I wonder if those assumed percents include water or something. Or is it still saying you lose ffm too. Brain not working at the moment.
Now that i had your link I found this following post that I'm going to read!
https://community.myfitnesspal.com/en/discussion/916230/study-suggests-you-can-run-larger-deficit-than-we-think
Either way i have a headache today so I am eating maintence today lol. Maybe I will increase a bit till I get exercising... i just really didn't want to buy a whole new wardrobe before I go back to work at the end of July. Petty I know.
Suggest you read the whole thread, and the out-links, not just the top post.
Yeah i read it all and basically... is said thats just a maximum for obese people... so it wouldnt really apply to me.
I'm just so curious where comes from and what the theoretical overall muscle difference in muscle loss would be if i continue eating 1500 a day vs 1700 a day with the same activity level... which basically consists of pushing 70 lb strollers on flat ground, carrying 55 lbs of kids up and down the stairs a million times a day, and diving at children as they are about to dive off the couch.
It's a confusing thread (including some posts by confused people). I don't think that what I bolded is true of the study cited in the OP of that thread. I think what heybales said is corrected: Based on Minnesota starvation experiment. But still wouldn't necessarily apply to you in any practical way, for other reasons he mentioned.
In particular, in the thread you linked, I think there was confusion in the comments between the OP study, and a later study that was linked about obese people in extreme deficits who were strength training. (That one doesn't really apply to you either. ).
I still don't think there's a study that will answer your exact question. Repeating myself: Bets, and bet hedging.
@heybales: Interesting calculator. I understand that the same limitations still apply.
Whoops missed a post in my haste to reply lol.
@AnnPT77 @PAV8888 @heybales And everyone else so far, thanks for your insights!
@ahoy_m8 I agree on sleep. My pregnancies and kiddos totally threw off my sleep rhythms. That combined with a lifelong inability to fall asleep very quickly (something my mom, brother, sister, and son all have issues with too, maybe its genetic, but I also think we tend to be the more stressed out people in the family) is definitely a factor in wanting to get things sorted out there. There were times in my life when I did have it ironed out and I felt so great during those times, and felt generally more energetic, less steessed and less over-hungry. Its not a fast fix though.3 -
@Duck_Puddle
Thanks for looking for a thread for me!
@heybales I tried your linked calculator. Like mfp it gives me 1850 cals to maintain but by spreadsheeting thru the years I find its more like 2100. I guess I am more active than I think. I always choose lightly active since I'm a stay at home mom (though starting July its back to my desk job). But even at my desk job I seemed to maintain on more like 2000. I'm still looking thru the rest of it to see what it says.0 -
I have almost the exact same stats and goals as you. Started at 165 last year and currently 134.5. I’m shooting for .5lb a week because I want to start practicing for maintenance. Plus I don’t have a deadline or anything like that. I lost like 1lb/month for March and April. Then I suddenly lost 4.5lbs in May so I bumped up my calories a bit this past week. I was at 1600 plus exercise calories and now I’m shooting for 1700 plus exercise calories. I usually gross 1900-2000 calories a day and always hit a minimum of 100-125g of protein.3
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I regained some weight when I was very unhappy, and my thyroid meds were too low and I was feeling extra tired and it was easier to buy snacks than not to. I decided to lose at a rate of 0.5lbs per week and it was nearly spot on (0.26kg/week). Yeah, it took a while, but I also had a day every week or two where I had a pack of crisps or liquorice. I would not have managed a bigger deficit anyway. It just fitted my lifestyle perfectly, and retransitioning back to maintenance was easy.1
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