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In recent years, Arginine has been one of the most studied amino acids. Initially it garnered interest from the performance nutrition industry for its stimulating effects on the body's natural production of growth hormone. Then it became popular as an aid to metabolic nitric oxide synthesis. There is a growing body of scientific literature that indicates L-Arginine supplementation may help improve physical performance and decrease fatigue because of the vasodilating effects of increased nitric oxide production. More recent studies have indicated that Arginine may be able to enhance lean muscle mass and help reduce body fat.

In January it was announced that long time MuscleTech athlete Branch Warren has signed on with Gaspari Nutrition.

It is hard to believe another year is upon us. For competitive bodybuilding, 2014 promises to be an exciting year, highlighted by the 50th anniversary of the Mr. Olympia in September. The competition for Olympia qualification spots will be especially intense as every pro bodybuilder on the planet would kill for a spot on the stage during that historic event.

Beta Alanine (3-aminopropanoic acid) is a naturally-occurring form of the amino acid Alanine. It is considered to be one of the most significant recent advancements in muscular power output and stamina enhancement. In many ways, the effects of Beta Alanine supplementation are similar to that of creatine, although the two substances work via different pathways within the metabolism.

Branched-chain amino acids (BCAAs) get to muscle fibers faster than other forms of aminos, and this is why BCAAs are a popular post-workout muscular recovery aid. A recently published study by researchers at Tsukuba University in Japan, looked at the effect on delayed onset muscle soreness (DOMS - a manifestation of muscle damage from training) of BCAAs combined with taurine. Taurine has been shown in some studies to have anti-inflammatory and anti-oxidative effects.