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80% diet, 20% exercise.

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  • puffbrat
    puffbrat Posts: 2,806 Member
    I don't remember where I read this so it could be wildly inaccurate, but I remember reading an article a couple years ago that suggested taken ALONE controlling food makes a bigger difference in weight loss and exercise becomes more significant for maintenance. The article did, however, emphasize that both together provide the best result in terms of weight loss. Maintenance was just a side note for the exercise component.

    From my own personal experience, diet is the most significant aspect to what causes my weight to change up or down. However getting more consistent exercise seems to help me weather periods of overeating more easily. Meaning I may manage to not gain weight from a day or two of overeating or that weight will come off more quickly. I assume this is related to water weight retention.
  • jaynee7283
    jaynee7283 Posts: 160 Member
    I've been here on MFP 100 days thus far and track my weekly results in a spreadsheet, including the number of miles walked per week. I have found that the weeks where I walk 15 miles or less I don't lose as much, but the weeks I walk more than 15 miles I lose more.

    So I do think exercise can play a part in addition to calorie restriction. My one person study shows that result, anyway. ;)
  • The_Enginerd
    The_Enginerd Posts: 3,982 Member
    For me personally, the 80/20 rule is pretty true. Tracking my food and be mindful of my eating has been the biggest contributor to losing and maintaining my weight. I've lost and maintained my weight all while varying from pretty much sedentary to mostly weight training to running 60 MPW over the course of the past 5 years. When I initially tried to lose weight, I started working out and trying to eat less crap, but that only got me to stop gaining. It wasn't until I tracked that I realized how much I was eating and started to lose weight.

    Exercising regularly does help me make more room for foods I like and allow me more flexibility, but my appetite increases with increased activity as well.
    It is very, very hard to outrun a fork. I've seen many folks have trouble losing weight, and even gaining weight, while training for a marathon or Ironman.
  • Jruzer
    Jruzer Posts: 3,501 Member
    Packerjohn wrote: »
    For the love of all that is good, 80-20 is the Pareto Principal:

    "The 80/20 Rule means that in anything a few (20 percent) are vital and many(80 percent) are trivial. In Pareto's case it meant 20 percent of the people owned 80 percent of the wealth. In Juran's initial work he identified 20 percent of the defects causing 80 percent of the problems. Project Managers know that 20 percent of the work (the first 10 percent and the last 10 percent) consume 80 percent of your time and resources. You can apply the 80/20 Rule to almost anything, from the science of management to the physical world."

    http://management.about.com/cs/generalmanagement/a/Pareto081202.htm

    All it's saying is more of weight loss/gain is due to diet vs movement. It might be 80%, might be 90% or 70%.

    THANK YOU for posting this. 80-20 is a rule of thumb, not a scientifically quantifiable principle.
  • moe0303
    moe0303 Posts: 934 Member
    Jruzer wrote: »
    Packerjohn wrote: »
    For the love of all that is good, 80-20 is the Pareto Principal:

    "The 80/20 Rule means that in anything a few (20 percent) are vital and many(80 percent) are trivial. In Pareto's case it meant 20 percent of the people owned 80 percent of the wealth. In Juran's initial work he identified 20 percent of the defects causing 80 percent of the problems. Project Managers know that 20 percent of the work (the first 10 percent and the last 10 percent) consume 80 percent of your time and resources. You can apply the 80/20 Rule to almost anything, from the science of management to the physical world."

    http://management.about.com/cs/generalmanagement/a/Pareto081202.htm

    All it's saying is more of weight loss/gain is due to diet vs movement. It might be 80%, might be 90% or 70%.

    THANK YOU for posting this. 80-20 is a rule of thumb, not a scientifically quantifiable principle.

    +2
  • msf74
    msf74 Posts: 3,498 Member
    Azdak wrote: »
    The strong (and somewhat simplistic IMO) statements re the relationship between diet and exercise for weight loss are made--at least from my perspective--to make 2 points. 1) Weight (fat) loss is subject to one's ongoing energy balance (calories in vs calories). That is fundamental and cannot change. There are other important factors involved, but they are peripheral to this core principle. Without a deficit, you cannot see success. No matter how much exercise you do, if your calorie intake matches or exceeds your output, you will not lose weight. There are still a lot of people who think they can just start an exercise program and they will lose weight without having to pay attention to their diet. You can lose weight with a calorie deficit and no exercise, but you cannot lose weight with exercise and no calorie deficit.

    2) The second point is a little more esoteric, but there have been a number of studies, articles, books, documentaries that have tried to use the "exercise only" approach as a means of trying to diminish, disparage, or dismiss any positive effects from exercise. For those of us who DO believe in exercise as an important part of both weight loss and health, we need to make sure that we do not "oversell" exercise as a magic bullet for weight loss, because it is not supported by research and it risks turning people off to exercise in general.

    While it is important to separate energy balance from exercise benefits, I do think that, in practical terms, we sometimes go too far in the opposite direction and are too dismissive of the important role that exercise plays for short-term weight loss and even more so for long-term maintenance of weight loss.

    Exercise plays several important roles for short-term weight loss: contributes to the establishment/maintenance of a calorie deficit, conserves lean mass (strength training), improves feelings of self-esteem, and enhances compliance to the program.

    Long-term effects are even more important IMO. There is some indication that non-resting energy expenditure remains suppressed for a year or longer following a period of dynamic weight loss (Am J Clin Nutr 2008;88:906 –12.). The extra calorie expenditure realized from a vigorous exercise program (and the gain/conservation of lean mass) could be crucial to counteracting this tendency to regain weight. One of the characteristics of successful long-term maintenance of weight loss (per the National Weight Control Registry) is maintaining an exercise program of at least 5day/wk, 60 min/day.

    Long-term statistics also point out the weakness in the "calorie deficit" only model of weight loss. Depending on where you look for statistics, diet-only weight loss efforts have a 90%-97% long-term failure rate. Those are not good odds. (Granted the failure rate for diet+exercise programs is in excess of 60%--but that is still significantly better).

    My bottom line is this: It is technically true that weight loss "only requires a calorie deficit", and it is important to emphasize that point to those who think exercise alone will be sufficient for weight loss. It is also important that there is no "best" exercise program for weight loss--with a calorie deficit, they can all be successful, without it none of them will be effective.

    However, given the long-term success rates, in real-life terms, I think it is highly unlikely that one can achieve long-term weight loss success without an exercise program. So, IMO, to say "you don't need exercise to lose weight" is both true (academically) and untrue (practically) at the same time.

    Excellent post.
  • Christine_72
    Christine_72 Posts: 16,049 Member
    When i went to the gym my trainer drummed the 80/20 mantra into me. She would have made more money off me had she not said it lol
  • moe0303
    moe0303 Posts: 934 Member
    Azdak wrote: »
    You can lose weight with a calorie deficit and no exercise, but you cannot lose weight with exercise and no calorie deficit.

    It is also important that there is no "best" exercise program for weight loss--with a calorie deficit, they can all be successful, without it none of them will be effective.

    Exercise plays into a calorie deficit, does it not? If an overweight person is maintaining eating the same exact meals every day, he or she will lose weight if they begin an exercise program (provided they weren't exercising while they were previously maintaining).

    In theory, the best exercise program for weight loss would be the one that burns the most calories. Sure ones that build muscle could gain some advantage in terms of increasing metabolism, but I'm not really trying to address that here, but I think it could be quantified.

    I think the gist of the 80/20 statement is to say that it is much easier to create a deficit with diet than it is with exercise. One of my doctors once explained it to me this way, concerning my bad habit to have a chocolate milkshake almost daily:

    "You can have a 600 calorie shake, but you will have to run for about an hour in order to burn it off. Now tell me, which is harder for you, not getting the shake or running for an hour?" Being obese at the time, I knew there was no way I would be running for an hour, so I chose not to drink the shakes.

  • Hornsby
    Hornsby Posts: 10,322 Member
    Is this not basically the chicken or the egg debate only on weight loss terms? Lol
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    Pretty much.

    What the easiest way to create the deficit is depends on the person. And probably varies even for that person over time.
  • moe0303
    moe0303 Posts: 934 Member
    Hornsby wrote: »
    Is this not basically the chicken or the egg debate only on weight loss terms? Lol

    Not really, I guess my point might be better brought out by rephrasing the statement:

    "You can lose weight with a calorie deficit without dieting, but you cannot lose weight by dieting and no calorie deficit."


  • Hornsby
    Hornsby Posts: 10,322 Member
    moe0303 wrote: »
    Hornsby wrote: »
    Is this not basically the chicken or the egg debate only on weight loss terms? Lol

    Not really, I guess my point might be better brought out by rephrasing the statement:

    "You can lose weight with a calorie deficit without dieting, but you cannot lose weight by dieting and no calorie deficit."


    Then it would be maintenance and not dieting?
  • moe0303
    moe0303 Posts: 934 Member
    Hornsby wrote: »
    moe0303 wrote: »
    Hornsby wrote: »
    Is this not basically the chicken or the egg debate only on weight loss terms? Lol

    Not really, I guess my point might be better brought out by rephrasing the statement:

    "You can lose weight with a calorie deficit without dieting, but you cannot lose weight by dieting and no calorie deficit."


    Then it would be maintenance and not dieting?
    if one is on say a low carb diet is that not a diet?
  • Hornsby
    Hornsby Posts: 10,322 Member
    edited April 2016
    It's a diet but dieting implies deficit in my opinion. I realize the technical definition though, yes.

    Either way, the constant is true, a calorie deficit is required. You get there with diet or exercise...i.e. Chicken / egg. However loosely it fits, you get the gist.
  • moe0303
    moe0303 Posts: 934 Member
    Hornsby wrote: »
    It's a diet but dieting implies deficit in my opinion. I realize the technical definition though, yes.

    Either way, the constant is true, a calorie deficit is required. You get there with diet or exercise...i.e. Chicken / egg. However loosely it fits, you get the gist.

    That is my point and that the two are components of a deficit or surplus and therefore cannot be exclusive of it at the same time. In other words, comparing exercise to a deficit is like an oxymoron.
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    moe0303 wrote: »
    Hornsby wrote: »
    It's a diet but dieting implies deficit in my opinion. I realize the technical definition though, yes.

    Either way, the constant is true, a calorie deficit is required. You get there with diet or exercise...i.e. Chicken / egg. However loosely it fits, you get the gist.

    That is my point and that the two are components of a deficit or surplus and therefore cannot be exclusive of it at the same time. In other words, comparing exercise to a deficit is like an oxymoron.

    I don't think the poster you quoted above meant to suggest that exercise wasn't part of the deficit. I thought you were basically saying the same thing.

    I still think the 80/20 thing makes no sense. It's just something people say to mean that most people (especially those who have become overweight) cannot totally ignore what they are eating and increase exercise and expect to lose.
  • moe0303
    moe0303 Posts: 934 Member
    lemurcat12 wrote: »
    moe0303 wrote: »
    Hornsby wrote: »
    It's a diet but dieting implies deficit in my opinion. I realize the technical definition though, yes.

    Either way, the constant is true, a calorie deficit is required. You get there with diet or exercise...i.e. Chicken / egg. However loosely it fits, you get the gist.

    That is my point and that the two are components of a deficit or surplus and therefore cannot be exclusive of it at the same time. In other words, comparing exercise to a deficit is like an oxymoron.

    I don't think the poster you quoted above meant to suggest that exercise wasn't part of the deficit. I thought you were basically saying the same thing.

    I still think the 80/20 thing makes no sense. It's just something people say to mean that most people (especially those who have become overweight) cannot totally ignore what they are eating and increase exercise and expect to lose.

    Yeah, I know we're getting into semantics here (my fault). My interpretation is slightly different in that I think it is meant to be applied to the specific goal of weight loss as opposed to general population. It is saying that generally speaking most of your weight loss results caloric deficit will come from diet and a smaller portion will come from exercise.
  • Traveler120
    Traveler120 Posts: 712 Member
    moe0303 wrote: »
    lemurcat12 wrote: »
    moe0303 wrote: »
    Hornsby wrote: »
    It's a diet but dieting implies deficit in my opinion. I realize the technical definition though, yes.

    Either way, the constant is true, a calorie deficit is required. You get there with diet or exercise...i.e. Chicken / egg. However loosely it fits, you get the gist.

    That is my point and that the two are components of a deficit or surplus and therefore cannot be exclusive of it at the same time. In other words, comparing exercise to a deficit is like an oxymoron.

    I don't think the poster you quoted above meant to suggest that exercise wasn't part of the deficit. I thought you were basically saying the same thing.

    I still think the 80/20 thing makes no sense. It's just something people say to mean that most people (especially those who have become overweight) cannot totally ignore what they are eating and increase exercise and expect to lose.

    Yeah, I know we're getting into semantics here (my fault). My interpretation is slightly different in that I think it is meant to be applied to the specific goal of weight loss as opposed to general population. It is saying that generally speaking most of your weight loss results caloric deficit will come from diet and a smaller portion will come from exercise.

    That's what makes no sense to me. I think it's all about context.

    If a fat marathoner is running 10 hrs a week and is not losing weight, they're clearly eating too much. They need to "diet" as in eat less, in order to create sufficient deficit for fat loss, while maintaining the same level of exercise as before.

    For a sedentary person, who's eating a reasonable amount of food, say 1700 calories for a woman, doesn't want to go on a starvation diet of 1200, but wants to lose the same amount as the fat marathoner above, the best option would be to simply start exercising enough to create the necessary deficit.

    The difference is the same. Diet (as in eating less) or exercise will be equally effective. It just depends on where someone is starting at, as well as personal preferences.
  • moe0303
    moe0303 Posts: 934 Member
    sympha01 wrote: »
    Honestly, I feel like everyone wants to "blame" weight loss struggles on physical issues ("what is the best exercise to burn fat?" / "Are my calories too low am I in 'starvation mode' oh noes?" / "am I eating too many carbs?" / "am I getting not enough protein?" / "should I eat a lchf diet to lose the most weight?" / "halp I can't stop eating after 7pm won't that all turn to fat?") but personally I think all that stuff is majoring in the minors. As many many people have said, bottom line you just need to burn fewer calories than you take in.

    BUT there are a lot of things we can tweak about our diet and exercise that help our mental game. Personally, I find that exercise helped me lose more weight over a long period of time because in a number of ways it helped me stay on the path over a long period of time. For one thing, exercising allowed me to eat more calories while still losing weight at a reasonable pace. So since I was depriving myself less, I was way less tempted to give up. A lot of people feel like exercise also helps with mood, and being grouchy is a great way to end up eating more than you really want too, so that's another way exercise can help with your mental weight loss game. And the same is true really of a lot of that physical stuff: balancing your macros and your meal timing in a way that makes your body feel better and stronger and more satisfied gives you that much less temptation to give up and can help you be more successful losing and managing your weight over the long run.

    "...you just need to burn fewer more calories than you take in."

    FTFY
  • leaj1984
    leaj1984 Posts: 23 Member
    edited April 2016
    I agree in theory... I also know that exercise alone, when done vigorously enough (I'm playing devil's advocate here!), 10-12 hours a week, can bring in immense changes in the body. Imagine if we did what actors/actresses do... Work out with a trainer 1 hour in the morning, 1 hour in the evening (with increased intensity and always challenging your body), 6 days a week, plus a run/yoga/hike session here and there... You could eat the same and I think that over time, your body composition would change a lot. You'd have a lot more muscle on you, which would take care of efficiently burning everything you put in your mouth. That, in turn, over weeks / months, would make you a lot leaner with much less body fat.

  • NorthCascades
    NorthCascades Posts: 10,968 Member
    edited April 2016
    moe0303 wrote: »
    I think the gist of the 80/20 statement is to say that it is much easier to create a deficit with diet than it is with exercise. One of my doctors once explained it to me this way, concerning my bad habit to have a chocolate milkshake almost daily:

    "You can have a 600 calorie shake, but you will have to run for about an hour in order to burn it off. Now tell me, which is harder for you, not getting the shake or running for an hour?" Being obese at the time, I knew there was no way I would be running for an hour, so I chose not to drink the shakes.

    If you gave forced upon me a choice - I can go for a run, or I can have a shake, but not both - I'd do the run and give up the shake. I value the endorphin buzz more than the sugar. Maybe if it was a savory dish I'd have a harder time choosing... ;)
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    moe0303 wrote: »
    lemurcat12 wrote: »
    moe0303 wrote: »
    Hornsby wrote: »
    It's a diet but dieting implies deficit in my opinion. I realize the technical definition though, yes.

    Either way, the constant is true, a calorie deficit is required. You get there with diet or exercise...i.e. Chicken / egg. However loosely it fits, you get the gist.

    That is my point and that the two are components of a deficit or surplus and therefore cannot be exclusive of it at the same time. In other words, comparing exercise to a deficit is like an oxymoron.

    I don't think the poster you quoted above meant to suggest that exercise wasn't part of the deficit. I thought you were basically saying the same thing.

    I still think the 80/20 thing makes no sense. It's just something people say to mean that most people (especially those who have become overweight) cannot totally ignore what they are eating and increase exercise and expect to lose.

    Yeah, I know we're getting into semantics here (my fault). My interpretation is slightly different in that I think it is meant to be applied to the specific goal of weight loss as opposed to general population. It is saying that generally speaking most of your weight loss results caloric deficit will come from diet and a smaller portion will come from exercise.

    But--and I admit this IS getting into semantics and is in good humor--I don't think that's true. For me it's always been a lot about exercise, since I've only gained weight from becoming inactive.

    For example, let's say I want to lose more weight enough to actually create a calorie deficit.

    My sedentary TDEE is 1550. To lose I'd likely eat between 1600-1800, however, over my sedentary TDEE, and create a calorie deficit with exercise. So that looks like I'm doing 100% from exercise.

    Except that of course I'm currently exercising at that level (or close), so what I actually do is cut calories from the amount I'm currently eating at maintenance. So then is it 100% from calorie cutting, if I don't change my exercise?

    When I actually DID decide to get back in shape my intention and goal was to cut calories by about 500 and exercise on average for about 500 calories/day more than I had been (this could include walking too). Of course it took me some time to work up to that level, but I did. So that seems like it was 50/50 exercise and calorie cutting.

    Mentally, I find it much easier to eat well (and fewer calories) when I am focused on fitness and exercise (training) goals, so again that to me feels like a contribution of about 50% or at least a non-quantifiable both are extremely important to me. This is going to vary person to person.

    Of course, I cannot completely not think about food and lose, even at my most active, and I could lose without any exercise if I had to. So that suggests a different percentage, although not a quantifiable one, again.
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    sympha01 wrote: »
    Honestly, I feel like everyone wants to "blame" weight loss struggles on physical issues ("what is the best exercise to burn fat?" / "Are my calories too low am I in 'starvation mode' oh noes?" / "am I eating too many carbs?" / "am I getting not enough protein?" / "should I eat a lchf diet to lose the most weight?" / "halp I can't stop eating after 7pm won't that all turn to fat?") but personally I think all that stuff is majoring in the minors. As many many people have said, bottom line you just need to burn fewer calories than you take in.

    BUT there are a lot of things we can tweak about our diet and exercise that help our mental game. Personally, I find that exercise helped me lose more weight over a long period of time because in a number of ways it helped me stay on the path over a long period of time. For one thing, exercising allowed me to eat more calories while still losing weight at a reasonable pace. So since I was depriving myself less, I was way less tempted to give up. A lot of people feel like exercise also helps with mood, and being grouchy is a great way to end up eating more than you really want too, so that's another way exercise can help with your mental weight loss game. And the same is true really of a lot of that physical stuff: balancing your macros and your meal timing in a way that makes your body feel better and stronger and more satisfied gives you that much less temptation to give up and can help you be more successful losing and managing your weight over the long run.

    Great points -- this rings true to my experience too.
  • moe0303
    moe0303 Posts: 934 Member
    moe0303 wrote: »
    I think the gist of the 80/20 statement is to say that it is much easier to create a deficit with diet than it is with exercise. One of my doctors once explained it to me this way, concerning my bad habit to have a chocolate milkshake almost daily:

    "You can have a 600 calorie shake, but you will have to run for about an hour in order to burn it off. Now tell me, which is harder for you, not getting the shake or running for an hour?" Being obese at the time, I knew there was no way I would be running for an hour, so I chose not to drink the shakes.

    If you gave forced upon me a choice - I can go for a run, or I can have a shake, but not both - I'd do the run and give up the shake. I value the endorphin buzz more than the sugar. Maybe if it was a savory dish I'd have a harder time choosing... ;)
    actually, if you went for a run, you'd be able to have the shake. The goal is the deficit.

    Think about it another way:

    Many people here on MFP needing to lose a lot of weight choose the most aggressive goal available; 2 pounds per week or a deficit of 1000 calories a day. For those who make such a choice, how many would find it easier to burn 1000 calories every day through exercise?
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    moe0303 wrote: »
    moe0303 wrote: »
    I think the gist of the 80/20 statement is to say that it is much easier to create a deficit with diet than it is with exercise. One of my doctors once explained it to me this way, concerning my bad habit to have a chocolate milkshake almost daily:

    "You can have a 600 calorie shake, but you will have to run for about an hour in order to burn it off. Now tell me, which is harder for you, not getting the shake or running for an hour?" Being obese at the time, I knew there was no way I would be running for an hour, so I chose not to drink the shakes.

    If you gave forced upon me a choice - I can go for a run, or I can have a shake, but not both - I'd do the run and give up the shake. I value the endorphin buzz more than the sugar. Maybe if it was a savory dish I'd have a harder time choosing... ;)
    actually, if you went for a run, you'd be able to have the shake. The goal is the deficit.

    Think about it another way:

    Many people here on MFP needing to lose a lot of weight choose the most aggressive goal available; 2 pounds per week or a deficit of 1000 calories a day. For those who make such a choice, how many would find it easier to burn 1000 calories every day through exercise?

    I just addressed almost exactly this question. I found 50/50 the most sensible and appealing approach.
  • blues4miles
    blues4miles Posts: 1,481 Member
    Weight loss is 100% diet.

    How much you exercise is immaterial if you are not in a deficit.

    But that doesn't mean exercise isn't critical to physical health, mental health, and possibly even adherence to sticking to a calorie deficit.
  • NorthCascades
    NorthCascades Posts: 10,968 Member
    moe0303 wrote: »
    actually, if you went for a run, you'd be able to have the shake. The goal is the deficit.

    I understand about the math and I think your doctor had a pretty clever way of explaining it to you in a way that hit home. Leave the choice in your hands, just make the "cost" clear, and for most people it's an obvious decision.

    Not disagreeing with that at all. I'm just sharing my personal perspective, because we're all different in our motivations and what we find easy/hard. I really like the way a hard workout makes me feel, it's my natural stress relief after a bad day at work or a tough commute. It also gets me out of the house because I get cabin fever really bad and if I don't get out regularly I'll fall into a depression. So, if I had to choose for some reason, I'd take the run and give up the shake, even though in reality it's not a one or the other choice, it's more like a both or none.

    Ultimately, I'm agreeing with you that this "80/20 rule" is not a hard and fast scientific law about how all people must lose weight, that what works for one person isn't necessarily going to work for everybody, we're all motivated differently.
  • Francl27
    Francl27 Posts: 26,371 Member
    It's about eating less than you burn BUT for some people, like me, weight loss would not be achievable without activity. There's absolutely no way that I'd be able to stick to 1400 calories, which would be my goal if I didn't exercise... Just NOT happening.

    So it's definitely not as easy as '100% diet'. Getting 20% extra calories from activity seems reasonable, so 80% diet/20% exercise sounds about right to me.
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