Wheat protein isolate is a concentrated form of various wheat proteins. It is available as a food source primarily used by body builders and those incorporating sports nutrition in their diet. Wheat protein isolate is found in powdered form and in shakes. Wheat protein isolate is used as a dietary supplement because it is rich in protein.

It is used to naturally increase the protein content of many foods, such as nutrition bars, granola bars, cereal coatings, baked goods, meat analogs and pastas. Wheat protein isolate reduces the amount of dairy products, fat and eggs used in foods because it is a protein alternative. Wheat protein isolate is a natural dough relaxer.

Wheat protein isolate is a dietary supplement that is rich in protein and low in carbohydrates and fat. Wheat protein isolate is a popular sports nutrition supplement, particularly among bodybuilders and strength-training athletes, because the high protein content may be helpful in producing muscle growth. Despite the potential benefits of wheat protein isolate, consult your doctor before using it or other supplements.

Wheat protein isolate can be a beneficial supplement for dieting, because it is low in calories. Each 100g (3.5oz) serving of wheat protein isolate contains just 400 calories. Because of the low calorie content, making a wheat protein isolate shake to replace a meal can aid in weight loss. For example, if you drank a wheat protein isolate shake instead of eating a 6-inch turkey sub each day, you'd consume 1,260 fewer calories in one week. That amount is enough to lose more than 1/3 lb.

Wheat protein isolate is rich in protein, each serving contains 90g. This makes wheat protein isolate suitable for post-workout recovery.

Consuming wheat protein isolate is thought to help build muscle in the human body. Wheat protein isolate is a better alternative to dairy proteins because it contains no lactose, which is difficult to digest in many individuals, and is high in glutamic acid. Wheat protein isolate is low in carbohydrates and fat and rich in protein and amino acids.

Wheat protein isolate contains gluten, and should not be consumed by those with a gluten intolerance, allergies or those suffering from celiac disease.

Wheat protein isolate contains free glutamic acid, the active ingredient in MSG.

Origins

Wheat protein isolate is obtained by extracting the protein from the wheat berry in its most pure state. The starch from wheat flour is removed and the remaining wheat protein is dried. The remainder is what gives elastic properties to many baked goods, faux meats and food coatings.

Amino Acid Profile
Alanine 2.21% Lysine 1.57%
Arginine 3.41% Methionine 1.43%
Aspartic Acid 3.03% Phenylalanine 4.88%
Cystine 1.67% Proline 11.32%
*Glutamic Acid 31.15% Serine 4.77%
Glycine 3.19% Threonine 2.41%
Histidine 2.06% Tryosine 3.26%
Isoleucine 3.37% Tryptophan 1.02%
Leucine 6.49% Valine 3.62%
*>90% of the glutamic acid is present as glutamine.

References
inrfood.com
livestrong.com