The True Strength of Branched Chain Amino Acids (BCAAs) L-Leucine, L-Isoleucine, and L-Valine are commonly grouped together and referred to as Branched Chain Amino Acids, or BCAAs, because of their unique branched chemical structure. BCAAs are essential, meaning they must be consumed through the diet, since the human body cannot make them from other compounds. BCAAs provide active adults with versatile support for training endurance and recovery. Used with protein powders and/or protein-rich foods, these 1000 mg capsules help support muscle recovery and protein synthesis. BCAA 1000 Caps are recommended first thing in the morning and/or during the 30 minutes just before or immediately after training. Simply take 2 capsules with your favourite beverage, or with your protein shake.