Everyone at my gym is talking about amino acid shooters. Should I bother?

Your workout is a muscle-growth party, and pounding a branched chain amino acid (BCAA) drink kick-starts it. BCAAs are protein building blocks that fuel your muscles and help them grow, says Mike Roussell, Ph.D., author of The Six Pillars of Nutrition. In fact, a recent study from Sweden found that drinking BCAAs during resistance training activates key enzymes used in building muscle more than exercise alone does.

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