BCAA: There Are Many Benefits Of Branched Chain Amino Acids Provides Stamina and strength for athletes and sportspersons. Dieting down will get you thinner, but it might also reduce some size from your biceps. BCAAs can help protect your muscles against the catabolic effects of dieting.
In recent years, branched-chain amino acid supplements have come back into 'vogue' in the bodybuilding and fitness community and with good reason. There's research that supports the use of BCAAs. While BCAA supplementation may be useful for gaining mass, BCAAs are especially helpful for maintaining muscle mass while on a calorie-deficit diet. They're particularly useful for sports competitors who take their physiques to be lean and strong - and healthy of course.
Catabolic Crisis Dieting is catabolic, which means it can lead to muscle breakdown, for several reasons. The leaner a body gets, the more likely it is to lose muscle mass as the body tries harder and harder to hold onto body fat stores. In doing so, the body will turn to muscle to satisfy its energy needs. Working out compounds the metabolic effects of dieting.
The leaner one becomes, the more lethargic one can become. Decreased energy intake and decreased glycogen storage make for some rough training sessions. If you're too tired or weak to lift as heavy as your body was getting used to, your muscles will adapt, and they won't use as much energy to get the work done.