Keto vs calorie counting

I know many say both keto and calorie counting are one in the same, as someone will lose weight due to having a calorie deficit. The first month on keto people lose a large amout of water weight, but I'm seeing people each month lose 10-20 pounds a month vs calorie counting people are barely loosing 4-8 pounds a month. So wouldn't keto be a better weight loss option?
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Replies

  • lbride
    lbride Posts: 248 Member
    I think they lose so much weight b/c the limited diet = less calories overall (and eating high fat makes you less hungry, IMO)
    But I've never tried it (successfully - it's hard to eat that much fat!)
  • 39flavours
    39flavours Posts: 1,494 Member
    edited February 2019
    Just curious, if we as humans are only able to metabolize a certain amount of fat per day, as stated above, then how come obese people can lose fat at a higher rate than those with less body fat?

    Edited to change the word weight to fat
  • moe0303
    moe0303 Posts: 934 Member
    39flavours wrote: »
    Just curious, if we as humans are only able to metabolize a certain amount of fat per day, as stated above, then how come obese people can lose fat at a higher rate than those with less body fat?

    Edited to change the word weight to fat

    Good question. Maybe the limit the limit is based on the amount of fat in the body (Just guessing). I'd be interested in seeing studies about this.
  • 39flavours
    39flavours Posts: 1,494 Member
    That's interesting, so at some point your body says 'no, that's about all the body fat % I'm willing to spare today, time to start consuming muscles' I wonder what the evolutionary logic is behind that.
  • AnnPT77
    AnnPT77 Posts: 34,225 Member
    39flavours wrote: »
    That's interesting, so at some point your body says 'no, that's about all the body fat % I'm willing to spare today, time to start consuming muscles' I wonder what the evolutionary logic is behind that.

    Without actual biology/physiology expertise in any way ( ;) ), I suspect it's more about the chemistry - that your physical system is only capable of biologically converting X amount of fat per pound of fat per day into energy, so when it exceeds that, it goes shopping for other energy sources in the body.

    As far as "evolutionary logic" . . . at some level of intake, humans starve, and natural selection seems perfectly willing to let them. Physics won't let you keep running on empty, so how your body adapts is shaped by natural selection, not logic.

    Pure speculation, though.
    moe0303 wrote: »
    39flavours wrote: »
    Just curious, if we as humans are only able to metabolize a certain amount of fat per day, as stated above, then how come obese people can lose fat at a higher rate than those with less body fat?

    Edited to change the word weight to fat

    Good question. Maybe the limit the limit is based on the amount of fat in the body (Just guessing). I'd be interested in seeing studies about this.

    I can't find a cite quickly right now, but IMU the estimate is that we can burn roughly X amount of calories per pound of fat per day, and that that value (X) was inferred (by experts) via calculation, not experimentation. If memory serves (something mine rarely does ;) ), the value of X is argued about, but is estimated to be in the 20s or at most 30s of calories per pound of fat.

    The "maximum loss of 1% of body weight a week" is on the conservative side, because (1) it's a rule of thumb and one size doesn't actually fit all, and (2) losing too slowly is frustrating, but losing too fast is dangerous and unhealthy.
  • estherdragonbat
    estherdragonbat Posts: 5,283 Member
    How can you say that? Dragons are lumped under "people" when they aren't even humanoid! :wink:
  • magnusthenerd
    magnusthenerd Posts: 1,207 Member
    AnnPT77 wrote: »
    39flavours wrote: »
    That's interesting, so at some point your body says 'no, that's about all the body fat % I'm willing to spare today, time to start consuming muscles' I wonder what the evolutionary logic is behind that.

    Without actual biology/physiology expertise in any way ( ;) ), I suspect it's more about the chemistry - that your physical system is only capable of biologically converting X amount of fat per pound of fat per day into energy, so when it exceeds that, it goes shopping for other energy sources in the body.

    As far as "evolutionary logic" . . . at some level of intake, humans starve, and natural selection seems perfectly willing to let them. Physics won't let you keep running on empty, so how your body adapts is shaped by natural selection, not logic.

    Pure speculation, though.
    moe0303 wrote: »
    39flavours wrote: »
    Just curious, if we as humans are only able to metabolize a certain amount of fat per day, as stated above, then how come obese people can lose fat at a higher rate than those with less body fat?

    Edited to change the word weight to fat

    Good question. Maybe the limit the limit is based on the amount of fat in the body (Just guessing). I'd be interested in seeing studies about this.

    I can't find a cite quickly right now, but IMU the estimate is that we can burn roughly X amount of calories per pound of fat per day, and that that value (X) was inferred (by experts) via calculation, not experimentation. If memory serves (something mine rarely does ;) ), the value of X is argued about, but is estimated to be in the 20s or at most 30s of calories per pound of fat.

    The "maximum loss of 1% of body weight a week" is on the conservative side, because (1) it's a rule of thumb and one size doesn't actually fit all, and (2) losing too slowly is frustrating, but losing too fast is dangerous and unhealthy.
    The study that put it around 31 calories / pound has generally been discounted. In particular, I think it limits itself to fat oxidation from non-exercise activity.

    At least part of what happens in the biology is that the body will need to preserve a certain amounts of fats and proteins for particular metabolic activities that only they can do - certain hormones need a fatty acid as their base, cell walls require lipids, and a lot of structure can only be made out of specific amino acid sequences. Animals that balanced those levels better than others via feedback systems during times of starvation would probably have tended to die less from starvation.
  • kimny72
    kimny72 Posts: 16,011 Member
    AnnPT77 wrote: »
    39flavours wrote: »
    That's interesting, so at some point your body says 'no, that's about all the body fat % I'm willing to spare today, time to start consuming muscles' I wonder what the evolutionary logic is behind that.

    Without actual biology/physiology expertise in any way ( ;) ), I suspect it's more about the chemistry - that your physical system is only capable of biologically converting X amount of fat per pound of fat per day into energy, so when it exceeds that, it goes shopping for other energy sources in the body.

    As far as "evolutionary logic" . . . at some level of intake, humans starve, and natural selection seems perfectly willing to let them. Physics won't let you keep running on empty, so how your body adapts is shaped by natural selection, not logic.

    Pure speculation, though.
    moe0303 wrote: »
    39flavours wrote: »
    Just curious, if we as humans are only able to metabolize a certain amount of fat per day, as stated above, then how come obese people can lose fat at a higher rate than those with less body fat?

    Edited to change the word weight to fat

    Good question. Maybe the limit the limit is based on the amount of fat in the body (Just guessing). I'd be interested in seeing studies about this.

    I can't find a cite quickly right now, but IMU the estimate is that we can burn roughly X amount of calories per pound of fat per day, and that that value (X) was inferred (by experts) via calculation, not experimentation. If memory serves (something mine rarely does ;) ), the value of X is argued about, but is estimated to be in the 20s or at most 30s of calories per pound of fat.

    The "maximum loss of 1% of body weight a week" is on the conservative side, because (1) it's a rule of thumb and one size doesn't actually fit all, and (2) losing too slowly is frustrating, but losing too fast is dangerous and unhealthy.
    The study that put it around 31 calories / pound has generally been discounted. In particular, I think it limits itself to fat oxidation from non-exercise activity.

    At least part of what happens in the biology is that the body will need to preserve a certain amounts of fats and proteins for particular metabolic activities that only they can do - certain hormones need a fatty acid as their base, cell walls require lipids, and a lot of structure can only be made out of specific amino acid sequences. Animals that balanced those levels better than others via feedback systems during times of starvation would probably have tended to die less from starvation.

    That's interesting! I never would have thought of that, but it makes sense :drinker: