Whey protein, is the protein contained in the watery portion of milk, that separates from the curds during the cheese making process.
This protein is rich in essential and branched-chain amino acids, and is therefore easily absorbed, and very useful in building muscle and increasing strength. Whey protein is useful as a protein supplement for bodybuilders, gym enthusiasts, athletes, people looking to lose weight or lack protein in their diet.
Whey Concentrate and Whey Isolate differs in the methods used (microfiltration or ion-exchange), in seperating the fat and lactose, from the protein. Whey Concentrate yields a protein powder that is 70-80% protein and 5% lactose. Whey Isolate is then further purified using cross-flow microfiltration. Whey Isolates are almost exclusively (90%) protein, with very low levels of carbohydrates and fat, and more suitable to people with lactose intolerance.
Whey protein has been shown to be especially effective at increasing muscle growth and protein synthesis, due to its amino acid content, and increased release of anabolic hormones. It boosts metabolism, reduce cravings and regulate blood sugar.
The large amount of L-cysteine in Whey, raise levels of Glutahione (antioxidant), and can help alleviate nutritional deficiencies, that can occur in old age and diabetic sufferers.
Because Whey delivers high protein with low fat, it can be an effective tool in weight loss programmes and effect the risk of heart disease, cancer and diabetes.
It has also been studied for improving the immune system, relieving symptoms of stress, depression, hepatitis and allergy, as well as helping to prevent bone loss.
How it works:
Whey protein is rich in essential and branched-chain amino acids, and is therefore easily digested and absorbed. BCAA's are required for initiating protein synthesis, tissue growth and repair.
Its antioxidant and detoxifying activity, is mainly due to its apparent ability to raise glutathione (GSH). GSH, the most important water-soluble antioxidant in the body, is vital for the proper functioning of the immune system, protecting of RNA, DNA and proteins.
Whey lactoferrin is an iron-binding glycoprotein, with antimicrobial and antioxidant qualities, and seems to exercise its effects by regulating iron absorption.
It also exhibits an ability to stimulate immune response and acts as an anti-inflammatory.
Grass-Fed Whey Protein Concentrate contains the following amino acid profile:
| Alanine | 4,55% |
| Arginine | 2,35% |
| Aspartic Acid | 1,94% |
| Cysteine | 3,82% |
| Glutamic Acid | 11,32% |
| Glycine | 1,41% |
| Histidine | 1,73% |
| Isoleucine | 5,47% |
| Leucine | 10,04% |
| Lysine | 6,98% |
| Methionine | 1,75% |
| Phenylalanine | 3,13% |
| Proline | 7,19% |
| Serine | 4,96% |
| Threonine | 4,05% |
| Tryptophan | 3,33% |
| Tyrosine | 0,94% |
| Valine | 4,07% |
Whey protein is a by-product of cheese making.