what performance enhancing drugs are safe?
['Hydroxymethylbutyrate (HMB) HMB is an amino acid found naturally in the body. ... ', 'Conjugated linoleic acid (CLA) CLA is a type of fat that athletes take to reduce muscle damage and increase lean body mass after exercise. ... ', 'Carnitine. ... ', 'Chromium. ... ', 'Creatine.']