I'll address your comment, but I'm not arguing this beyond this post. Also, this isn't all
my personal opinion.
You DO have to eat frequently and consume an adequate amount of calories to burn fat and add mass.
Yes, ejecting energy from fat is a more complex process than output minus input, but it is the most reasonable way of getting a quantitative measure on fat loss.
To build muscle you gotta eat more calories than your body works off. Depending on what you're looking to do, you should realistically be eating 15-20 times your body weight in calories. You need a CALORIC SURPLUS.
What I'm getting from your posts is that you're saying that with a CALORIC SURPLUS, you can burn fat and build muscle.
Provided you subscribe to this theory, the corollary must also be accepted, i.e. you can burn fat and build muscle on a calorie deficit (as long as you're talking in general, not accounting for body types or lifestyles). If your theory is that the fat gain from a calorie surplus will be burned by growing muscles, then the basis behind this is that fat calories in the body can be used for muscle growth. It is only theory.
And if both those cases are applicable, then you have to accept that the middle ground is also true. That while on a calorie maintenance, you can burn fat and add muscle.
All three of those statements are applicable to different people, but is that really advice at all? I have no problem with the advice you're giving. Obviously it works for you, but it isn't foolproof, nowhere near actually. And when I point that out, you get aggravated.
Without proper nutrition your body's going to break down muscle tissue for energy. It's amazing how ignorant some people are.
This isn't a fully informed opinion either. I understand the basic thread of thought here but so long as the body recognizes the importance of the muscle tissues, it will not tear at the muscles (i.e. lethargy will eat away at muscle at a much faster pace than overtraining).
The body does not WANT to break down muscle tissue. It is when the adipose tissues are stubbornly holding on and glycogen levels are dangerously low that the body resorts to muscle. Even that has its own separate mechanism.
Everything I've dealt with I've dealt in theory b/c the practical nature of fat loss/muscle gain varies DRASTICALLY from person to person.