The Whey To More Muscle

After years of being pilloried, mainstream nutrition scientists are now admitting that a high-protein diet provides a plethora of benefits—and not just for gym rats. A recent study published in the Journal of Food Science took it one step further and examined several different protein types for their ability to improve body composition, spare muscle during caloric restriction, and combat the natural loss of muscle that occurs with aging. The researchers concluded that whey protein, with its rich leucine content (which is responsible for triggering muscle protein synthesis), fast digestibility, and amino-acid profile, is superior to casein and soy when it comes to building and preserving muscle mass. While casein and soy do have their usefulness, if you only use one catchall protein powder, the science seems to point to whey as your best choice.