Quote:
Originally Posted by milesdyson
your answers are just terribly vague. i'll try more questions.
1a. i asked a form of this earlier, i'll reword. can you give an example of how someone might make his body require only 55% (2200 vs. 4000) of his theoretical caloric intake? please don't answer "it depends" because you have free reign to describe any factor involved.
1b. what things can be manipulated other than macronutrient breakdown and nutrient timing in an effort to get this person back to eating 1800 more calories daily but also not gaining weight?
2. why does the calculation you've given in this thread vary so drastically with both the harris-benedict and the mifflin-st jeor equations?
Sorry for being vague, I'll try to do a better job and feel free to call me on it if I do it again.
1a. when you are in such a caloric deficit your body goes into starvation mode, so it slows to a crawl and though you are able to live that way, it's not optimal and you will have a terrible time burning fat as opposed to breaking muscle protein down into amino acids to use for energy. Your body needs a certain amount of fat for warmth, organ cushioning, and hormone and enzyme transport. You need a very small amount of muscle to survive, and that's why your body will always choose to breakdown muscle as opposed to fat if it doesn't get enough energy from food to use. For this reason, your body's other choice is to slow it's metabolic rate to a point where it doesn't need to continue destroying muscle tissue to survive, and that's what happens when you eat too few calories. Your metabolism can be trained, but very slowly. That's the reason why when people get off their "diet", their weight skyrockets, because they've restricted themselves so much that their metabolism is not ready to recover when they then binge and overeat.
1b. If you mean supplements, you'll be hard pressed to find anyone educated in nutrition to recommend any supplement unless they're getting a kickback. If that's not what you mean, other than changing the variables in calculating total energy expenditure, nothing. Having said that, you can easily change physical activity and type of diet, which will in turn change your body composition and therefore change your TEE. Also, the end of your question say's "not gain any weight." I don't focus much on weight at all, except for TEE calculations. I focus on body composition and changing it for the better. A beach ball and a baseball both weigh 4 ounces, but I don't think I have to ask which one you'd rather be.
2. Can you link me their recommendations so I can look? I don't want to say anything about their way of thinking before knowing more about it. I will say that my recommendations come from years of research, are scientifically backed and efficated, and are what is taught in textbooks for nutritionists. Anyone who tells you different is selling something.
Last edited by Dmunnee; 05-13-2011 at 08:46 PM.
Reason: for supplements: I should've included that people who are deficient in certain things may need a supplement.