Your body produces proteins necessary for proper functioning. These proteins are broken down into amino acids, recycled, rebuilt and used again. There are also essential proteins that your body does not produce that are acquired through your daily diet. Athletes are required to consume more of these proteins than non-athletes due to muscle breakdown and rapid energy depletion. The most common protein supplements among athletes are whey, casein and soy.
Whey
Whey proteins have an excellent metabolic efficiency and are easily digested. They contain a higher concentration of branched chain amino acids than any food source. Training and exercising causes the protein synthesis to decrease. Proteins are then mobilized into free amino acids. Your skeletal muscles convert these free amino acids into glucose. This glucose, in turn, is then used as energy. This is a process that depletes protein. Whey is an optimum post-workout supplement because it replenishes muscle tissue and amino acids lost during exercise. According to Whey of Life, athletes often need more protein than the recommended dietary allowance.
Casein
Casein is popular among strength athletes. It is a milk protein that is usually found in protein shakes and bars. Casein aids in reducing protein breakdown. It is slowly digested and contains high amounts of essential amino acids for optimum performance. Many athletes consume this supplement before bedtime because it provides a constant surge of amino acids throughout the night. Casein contains all the essential amino acids recommended for our daily dietary intake.
Soy
Soy contains fiber and protein that are beneficial to your health. According to the Mayo Clinic, soy is an excellent source of all essential amino acids and proteins needed in your daily diet. Soy protein is available in a variety of foods, such as soy burgers as well as soy protein bars. Soy protein concentrates can be mixed with milk or juice. Daily soy supplements can help athletes gain endurance for peak performance on the field, track or in the court. The Mayo Clinic states that an allergy to soy may consist of a runny nose or a sudden drop in your blood pressure. The Mayo Clinic recommends that you consult with your physician prior to starting a supplement regimen.
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