With the Olympics coming up, the use of supplements to enhance performance is big business. I asked my pal Jose Antonio, PhD, Sports Nutrition expert what was hot and gave me this scoop. Besides safe and effective supplements like creatine, protein powders, and even fish oil, there's a new kid on the block. It's called beta-alanine!

Beta-alanine is basically an amino acid that has been shown to help fight off the fatigue-promoting effects of lactic acid. When muscle pH drops from intense exercise, beta-alanine helps buffer this increased acidity. Technically, it is muscle carnosine (which is made from beta-alanine) that does the buffering.

What could beta-alanine help as far as Olympic events? Sports like wrestling, the long sprints such as the 400 meter dash, boxing, and team sports in which there is a lot of sprinting can be helped. In fact, a recent study from the International Journal of Sports Medicine proved that beta-alanine significantly improved muscular endurance. So for those of you seeking that extra performance edge, look out for beta-alanine!