UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. Glucosamine is an amino acid sugar that acts as the structural component of tendons, ligaments

UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. Found abundantly in your muscles and blood plasma, the nonessential amino acid glutamine serves as fuel

UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. You can find ginseng everywhere: in sports drinks, iced tea, herbal supplements, and energy gels. Used

food. —Liz Applegate, nutritionist and author of Powerfoods

UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. The claims on bottles of pyruvate are stunning: "Increases endurance by 20 percent" and "Promotes 47 percent

UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. A by-product of cheese production, whey protein can supposedly build muscle mass and be absorbed more easily

UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. Made from chitosan, a type of fiber from shrimp and crab shells, these supplements claim to stop your

UAN:236 Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. Branched-chain amino acids, or BCAAs, have been a hot topic for years, and they do show promise

UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. For years, researchers have known that magnesium plays a critical role in endurance performance. Magnesium

UAN: Article type:++add book link at top++ --This is adapted from the book, Eat Smart, Play Hard, by RW USA Nutrition Editor Liz Applegate. Log on to the Internet, flip through a fitness magazine, or cruise the supplement aisles in a health food