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Last Updated: Sep 2009
What are Bodybuilding Supplements?
- Soy protein contains all essential amino acids, however it contains estrogen-like compounds called isoflavones that may  exhibit estrogenic activity in people, causing some bodybuilders to avoid it.

- Egg white protein is a lactose- and dairy-free protein.


Glutamine is the most abundant amino acid found in human muscle and is supplemented because supplement manufacturers claim  the body's natural glutamine levels are depleted during anaerobic exercise. It is argued that supplementation by bodybuilders  may be required as deficiency may lead to a weakened immune system and wasting of muscle tissue. It is sold as a micronized,  instantly soluble powder.

Amino acids are the building blocks of protein; the body breaks consumed protein into amino acids in the stomach and  intestines. There are three branched chain amino acids (BCAAs): leucine, isoleucine, and valine. Each has numerous benefits  on various biological processes in the body. Unlike other amino acids, BCAAs are metabolised in the muscle. BCAAs have an  anabolic/anti-catabolic effect on the muscle.
Bodybuilding supplements are substances taken by athletes involved in weight training or other sport to aid in the building  of muscle mass or aid fat loss. Bodybuilding supplements may also be used to improve sports performance and improve recovery  from events and training.

Bodybuilders often take a powdered form of protein, the essential building blocks for muscle. Protein powder is generally  consumed immediately after exercising, or in place of a meal. Increasing the intake of protein in the diet allows muscles to  repair themselves and grow more effectively.

- Whey protein is the most commonly used type of protein. It contains high levels of all the essential amino acids not  produced by the human body, and is absorbed by the body very quickly.

- Casein protein is the richest in glutamine, an amino acid that aids in recovery, and has casomorphin which helps the body  to absorb the amino acids over a long time.
Bodybuilding Supplements
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