Bmr of ~1800 yet MFP says 1490 daily?

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Replies

  • yarwell
    yarwell Posts: 10,477 Member
    For simplicity in weight loss establishing a calorie deficit of 500 calories a day is probably something everyone can agree with. (LOL)

    Calculate your total energy expenditure (TDEE), knock off 500, eat that. If you don't lose 1 lb/week over 6 weeks or so then the estimate was wrong so add or subtract 100 cals a day in the appropriate direction.

    No bunnies will die if you do that.

    Would that work ?

    Your TDEE here will be your BMR multiplied by some factor greater than 1 for lifestyle plus your exercise calories.
  • Chagama
    Chagama Posts: 543 Member
    Listen to your body, more than the numbers. If you are exercising regularly, and improving the quality of your workouts (longer, faster, more, heavier, etc.) than you aren't starving yourself. If you are losing weight but can't get through your workouts, you may not be eating enough.

    There is a lot of guesswork and trial and error involved here. My suggestion is to follow what MFP say, and see how that works. Then adjust as needed after a few weeks. There are no set rules that work for everyone. We are all in different situations and our bodies are different and we need to see what works for us. If there were truly universal rules that worked for everyone, all the other systems would cease to exist.

    That is what I did, and I've been successful with it. I just input my weight, lifestyle, and set my weekly loss goal and have been trying to follow that. I've ignored the entire BMR thing because I can't make any logical sense of it. Overall I'm doing better on my workouts on a consistent basis, so I can't believe I'm starving myself.
  • Ravenesque_
    Ravenesque_ Posts: 257 Member
    For simplicity in weight loss establishing a calorie deficit of 500 calories a day is probably something everyone can agree with. (LOL)

    Calculate your total energy expenditure (TDEE), knock off 500, eat that. If you don't lose 1 lb/week over 6 weeks or so then the estimate was wrong so add or subtract 100 cals a day in the appropriate direction.

    No bunnies will die if you do that.

    Would that work ?

    Your TDEE here will be your BMR multiplied by some factor greater than 1 for lifestyle plus your exercise calories.

    Yes :P

    BMR = 1352 (kate thingy eq) or 1850 (the other one) MFP says 1800 ish

    Im not very active, and looking to change that gradually, so i tried 1.2 and get TDEE of 1622. Or 2220. or 2160.

    I want to kick this weight in the *kitten*. 500 seems low to me, but I'll go with it. That means I get 922. Or 1720. Or 1660.

    I get bout 200 kcals average back a day from exercise and I generally eat say half of them back.

    I want to take 1000 off (for 2lbs a week) because 1) pcos makes it harder to lose it in the first place and 2) I'm sick of being morbidly obese. But somehow eating 622 cals a day doesn't seem healthy for even me. 1120 I can do, but again that seems too low. :/

    I'm going to a professional next week, I think
  • yarwell
    yarwell Posts: 10,477 Member
    big deficits are more difficult for ladies, starting with lower BMRs etc.

    Given those numbers I would find an eating regime you're happy with in the 1000 - 1500 area and run with it for a decent length of time.

    Personally I would find the lower level sustainable with 70g of protein and plenty of fat with low carbs, but someone will be along to tell us that bunnies will die if you eat less than your BMR and that I'll die from eating fat soon.......
  • Ravenesque_
    Ravenesque_ Posts: 257 Member
    big deficits are more difficult for ladies, starting with lower BMRs etc.

    Given those numbers I would find an eating regime you're happy with in the 1000 - 1500 area and run with it for a decent length of time.

    Personally I would find the lower level sustainable with 70g of protein and plenty of fat with low carbs, but someone will be along to tell us that bunnies will die if you eat less than your BMR and that I'll die from eating fat soon.......

    Yup going to have to up my protein to do this, but Ive tried lower carbs before, and I cannot cope on them. Too much fat makes me feel odd. I'm not going to die from eating below my BMR so I'm going to see what happens. Moderation is more sensible then Zealotry i think.

    Thank you for all your thoughts everyone, its given me a lot of insight into the culture of this community :)
  • ladyraven68
    ladyraven68 Posts: 2,003 Member
    If you google "Don't eat below BMR" you'll find other sites that say the same thing,

    Not many, and certainly nothing too credible. The first page of hits was mainly MFP, then a few broscience sites, and a handful of rebuttal postings.
    Again, I don't know if it's just members heresay, or whether there's any actual science behind it, bit it's not just MFP members that advocate this.

    It is member's hearsay, without a doubt, and concentrated herein. There is no science that I can find, nor this guy - http://www.musclepyramid.com/if-you-don’t-learn-about-these-myths-you’ll-hate-yourself-later

    Many of the scientific studies put people on diets well below their BMR and often in the 400 - 800 calorie range (these are medically supervised trials, not the twinkie diet) and they don't discuss the margin below BMR *at all*. They use the lower calories to get a bigger result faster, before the trial budget expires or the volunteer subjects quit.

    Oh, I wasn't saying any of them are credible, just that members of other weight loss sites also advocate the *don't eat under BMR" philosophy, as a few people said they had only ever heard that mentioned on here.

    This is the only study I have seen with regards to changes in BMR/RMR, but it is only based on Non-Obese people, which is a bit odd.

    http://www.ncbi.nlm.nih.gov/pubmed/18198305
  • HappilyLifts
    HappilyLifts Posts: 429 Member
    interesting discussion, adding it to My Topics.
  • Ravenesque_
    Ravenesque_ Posts: 257 Member
    interesting discussion, adding it to My Topics.

    Yeh it turned into a good discussion :)