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How low is low carb?

Discussion in 'Ask A Question' started by therower, Jul 13, 2016.

  1. AndBreathe

    AndBreathe I reversed my Type 2 · Expert
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    Using this link: http://manytools.org/handy/bmr-calculator/ my BMR is 1125, with the calorific needs adjusted for activity, between 1500 (on sedentary days) to 1700 on "out and about days", and I guess a bit more on physically very active days.

    In my reality, when I track my intake of food and drink, I average just under 2000 most days and on busy, physically challenging days around 2500. After surgery last year I was having to get through around 3000 to just about manage to stop weight loss.

    I eat around 50-80 gr carb most days, but can tolerate more and sometimes just happen to eat less. In my world, not all calories are equal and balancing my fats is crucial to me keeping my weight up.

    I did recently go though a briefish period where I gained a couple of kilos for no apparent reason (no changes in diet or activity and so on), but that seems to have stopped now. I haven't lost the couple of kilos I gained as I'm still extremely slight and there is no need, but it was quite bizarre.

    Never has the phrase we're all different been so true.
     
  2. therower

    therower Type 1 · Well-Known Member

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    @tim2000s . Are you a mathematician or statistician by any chance? I'm still trying to get my calculator started :):):). You had me worried for a moment, read your thread a bit to quickly, read 1000kg and lifted, for a brief moment was in disbelief. On second read realised you're not the Incredible Hulk.:D
    :D:D:D:D
     
  3. luna50

    luna50 Type 2 · Well-Known Member

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    @tim2000s

    Hi Tim
    You write:
    " By your reckoning this shouldn't have been possible, and yet it works (and not just for me)".
    But it has nothing to do with your BMR.
    I know there is a more complicated equation to calculate the BMR. For example like this.
    https://en.wikipedia.org/wiki/Basal_metabolic_rate
    It is not needed. 24 x desired bodyweight = BMR kcal/day is ease to calculate.
    Because it is near 24 kcal per kilogram of body weight under ordinary conditions in "postabsorptive" state, 8 to 12 hour after the last meal.
    The calculated number is only BMR. There shall be added the energy for postprandial thermogenesis (typically 10% of BMR) . Digestion, absorption and storage of fat, require about 2% to 4% of the fat energy. but the conversion of carb's to storage fat requires 24% of the energy content of the carb's.
    Thermogenesis also results from other factors as could exposure and coffee intake.
    The muscular activity is the most variable item in the energy budget. But generally it is under 1500 kcal/day.
    The BMR is a measure for the persons energy need / day.
    If the person like to lose weight, then he or she shall intake a lower amount of energy.
    But here is the big problem. How shall this BMR energy be divide on the carb's, protein's and fat.

    The Experts in the health system say: 55% on carb's, 25% on fat's and 15 % on protein's.
    I do not agree with that. The carb's amount is to big. It is OK for people who are in very strenuous physical labour all day long. I use max. 130 g/day carb's. As diabetic, it is a big dilemma.
    The consequences of very Low carb's amount are more complicated to be explained on this forum.
     
  4. tim2000s

    tim2000s Type 1 · Expert
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    Why do you use this number, out of interest?
     
  5. luna50

    luna50 Type 2 · Well-Known Member

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    @tim2000s

    Because 130 gram carb's /day is about 30% off my BMR. I see it is to high for you.
     
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