PricePlow.com

Protein Powders

• Whey Protein

  From Wikipedia.org: Whey protein is a by-product of cheese manufactured from cow's milk. Whey is a fast-digesting protein source.
  
  Whey protein typically comes in three major forms: concentrate, isolate, and hydrolysate:
  * Concentrates contain a low level of fat and cholesterol but, in general, have higher levels of bioactive compounds, and carbohydrates in the form of lactose — they are 29%-89% protein by weight.
  * Isolates are processed to remove the fat, and lactose, but are usually lower in bioactive compounds as well — they are 90%+ protein by weight. Both of these types are mild to slightly milky in taste.
  * Hydrolysates are predigested, partially hydrolyzed whey proteins that, as a consequence, are more easily absorbed, but their cost is generally higher. Whey protein hydrolysate also tends to taste quite different than other forms of whey protein, usually in a way that many find undesirable but can be masked when used in beverages.
  
  Many bodybuilders take whey shakes 45 minutes prior to working out. Immediately post-workout, waxy maize is recommended, followed by another whey shake 20 minutes later. For more information on protein and how much you should use, expand the information in the Protein category.

• Soy Protein

  From Wikipedia.org: Soy protein isolate is a highly refined or purified form of soy protein with a minimum protein content of 90% on a moisture-free basis. It is made from defatted soy flour which has had most of the non-protein components, fats and carbohydrates removed.
  
  Soy protein concentrate is about 70% soy protein and is basically soybean without the water soluble carbohydrates. It is made by removing part of the carbohydrates (sugars) from dehulled and defatted soybeans.

• Casein Protein

  Casein protein is used by bodybuilders as a slow-digesting source of amino acids as opposed to the fast-digesting whey protein, and also as a high source of glutamine. It is also used in bodybuilding because of its anti-catabolic effect, meaning that casein consumption inhibits protein breakdown in the body. As a slow-digesting source of protein, it is recommended to take micellar casein before bed.

• Egg Protein

  Eggs and egg protein contain all eight essential amino acids (which your body can't make from other sources) and high levels of total amino acids, specifically the sulfur-containing aminos. Eggs are a lactose-free protein source and easily digestible.

• Meal Replacement Powders

  Meal replacements are a quick and easy way to get high quality protein, carbohydrates, and other important nutrients. Most bodybuilders eat 5 or 6 meals a day, so replacement powders are often used to save time from cooking meals.