Taurine is the second most abundant amino acid in the muscle after glutamine. It performs several useful functions and can act in a way similar to creatine in that it expands cells by helping the muscle to hold more water, thus increasing cell volume. The added benefit for bodybuilders is that these expanded muscle cells boost hydration and stimulate greater protein synthesis giving an enhanced muscle fullness.

The best time for bodybuilders to take taurine is thirty minutes before training and again immediately afterwards as this will heighten the effect of training. With any amino acid supplement overdosing can lead to weakness and nausea so care should be taken in applying small doses and increasing them gradually until an optimum level is reached. Bear in mind that many protein powders and other supplements are fortified with amino acids so check the labels carefully. The manufacturer's instructions should be followed in all instances.