The amino acid powder contains a variety of amino acids and is used by some athletes who are practicing strength training. The amino acid aids your body to build the proteins and thus increases the muscle mass. Branched-chain amino acids (BCAAs) are a specific type of amino acid protein which is present in some of the amino acid powders. Among proteinogenic amino acids, there are three BCCAs namely leucine, valine, and isoleucine.
Beneficial for Recovering the muscles
The amino acid powder is helpful in improving the muscle recovery. The strength-trained athletes who have used amino acids may notice this improvement in recovery of the muscle after their hard weight lifting exercises. This quality of amino acids is very worthwhile for bodybuilders who are taking part in the competitions. In 2010, a study published in the Journal of Strength and Conditioning Research stated that weightlifters who have consumed the amino acid powders before and during the high-intensity total body resistance workouts had experienced improved muscle recovery and a decrease in muscle damage.
It Elevates Testosterone levels and Growth Hormones

Amino acids consumption can affect the hormone levels of the bodybuilders. In 2010, the Journal of Strength and Conditioning Research published a study which states that strength-trained athletes who have consumed  BCAA powder showed higher testosterone levels.  This is an attractive benefit for the bodybuilders who want to increase the muscle mass. A study published in Medicine and Science in Sports and Exercise in 2009, found that those athletes who used the amino acid powder had increased concentrations of growth hormone along with increased testosterone. So, the bodybuilders who wish to increase the testosterones and growth hormones can consume the amino acid supplements.
It can Increase the Muscle Mass
The main advantage for bodybuilders and their main task is to get increase muscle mass. The amino acids help in obtaining that by improving muscle recovery, and by increasing the testosterone levels, and also by increasing the concentrations of growth hormones. The strength-trained athletes who took placebo supplements instead of amino acid supplements don’t show this increase in muscle mass. This comparison was made in 2009 in Medicine and Science in Sports and Exercise, and study states that athletes with amino acid supplements showed greater increases in muscle mass and its strength and also in the power when compared to the ones who took other supplements.
Satiety Benefits

Amino acid also helps the dieting bodybuilders to control their cravings and their calorie intake before competitions. A review in 2009 Current Opinion in Clinical Nutrition and Metabolic Care published that ingesting proteins, or amino acids actually improve the satiety and composition of the body and thus aids in controlling the calories and reducing the weight. The increased satiety is the key factor that helps to reduce the excess body fat by avoiding the added sugars and the carbohydrates that the bodybuilders might otherwise have a craving for.
Easy to Take

Taking amino acid is very convenient after the hard and strenuous exercises. As by mixing the amino acid powder with water or with milk, you can easily get the nourishment instantly. The amino acids are not a substitute for a well-balanced healthy meal but an easy way to refuel the body after a workout or in between the workout as a meal supplement.