Conjugated Linoleic Acid (CLA)
Conjugated Linoleic Acid is a nutrient that occurs naturally in a wide variety of foods, particularly beef and dairy products. Lab studies with animals and CLA have shown it to be an anti-carcinogen with anti-catabolic effects. Of special interest to bodybuilders is that  CLA has been shown to inhibit lipoprotein lipase, an enzyme which breaks down fat gobules in the blood so that adipocyte (fat cell) uptake, or body fat accumulation, can occur. The inhibitation of lipoprotein lipase results in reduced fat deposition. CLA also increases hormone sensitive lipase activity, an enzyme which breaks down fats stored in fat cells on the bocy. The fatty acids are returned to the blood stream to be used as an energy source for muscle cells. In plain English, CLA directs the body to use fat reserves for energy. CLA also has powerful antioxidant properties. 



Personal Experiences with CLA