protein can also be used as an addition to your regular diet. If youre looking to increase your protein intake, but cant use whey or casein, then soy could be a great alternative. Its high in branch chain amino acids and is a complete protein (contains all 9 essential amino acids), so you wont have to give up on your muscle-building goals.
For enhancing the recovery process, whey protein has no peer. Whey protein has the highest biological value (BV) of any protein source. BV rates the availability of the protein once ingested, and whey is arguably the most rapidly absorbed protein, exactly what you want post-workout. Whey protein's amino acid profile contains the highest percentage of essential amino acids, 25% of which are the BCAAs leucine, isoleucine, and valine, the most important for muscle tissue repair. Whey is also a rich source of two other important amino acids, methionine and cysteine, which stimulate the natural production of glutathione, one of the body's most powerful antioxidants and a major player in maintaining a strong immune system. Glutathione also supports healthy liver function.