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> There are parts of calories in that will never get absorbed by the body. If the same person consume the same amount of calories in donuts, or alternatively in
by 908B64B197 4y ago
> There are parts of calories in that will never get absorbed by the body. If the same person consume the same amount of calories in donuts, or alternatively in lettuce, they will almost certainly gain more weight eating donuts than lettuce even if their “calories out” is the same, because a lot of the calories in the lettuce will never be absorbed by their body and will simply exit as fiber in the first place.
That's accounted for in the "calorie in". Only the useable calories matter.
- jjeaff 4y agoThen you misunderstand. Usable calories is your calories in if your body was 100% efficient. Some of that food will simply pass all the way through and end up in the toilet. I would suspect that skinny people who seem to not gain weight no matter what they eat probably have less efficient digestion than others.