Can you link these studies? Are they done on body builders/athletes or just the common joe?
Devotees of CRON ( Calorie Restriction Optimum Nutrition ) believe that people, may, if they cut their calories a little below what they need
while maintaining the same nutrition, that they can extend their lives.
This is based on mountains of animal feeding studies started in the 1930s. As we all know and as CRON devotees will also admit, animal testing doesn't always make results that apply to humans. They view themselves as one big experiment.
Bodybuilders, who are trying to grow muscle need more calories than what they usually need
to supply energy for muscle growth. You can't build muscle and restrict the energy to do it at the same time.
It is like planning on a long car trip while refusing to fill up your gas tank. Professional bodybuilders usually have a bulking phase preceeding a contenst preparation phase where they get high muscle definition by dieting away their fat. Professional bodybuilders usually count on losing muscle while they do this because they take in fewer calories than they need...........in other words, similar to what CRON devotees do.