A protein blend is simply a protein powder that has been made from various different single protein sources such as whey protein, casein protein and egg white protein. The idea of a protein blend came about after sports nutritionists had long debated as to which protein source was best based on the different amino acid profiles, different protein contents, different Biological Values ..etc. They then decided that by making a blend of the different sources of protein they could effectively get the nutritional benefits of all of them in one protein source.
Things to Consider In Your Protein Blend
The key to any protein blend is looking at the individual protein sources that make it up and their unique nutritional benefits. For instance casein, whey protein, and isolated soy protein are considered, according to U.S. Food and Drug Administration labelling guidelines, to be complete proteins, which means they have a Protein Digestibility Corrected Amino Acid Score of 1.00. Put more simply this just means they all have an impressive amino acid profile that our bodies are able to digest and use, so all of them would be a good addition to any blend.
Looking more closely at the individual amino acids and you’ll find isolated soy protein is high in the amino acids glutamine (needed for good immune health) and arginine (which is important to nitric oxide production) whereas whey protein and casein protein are both higher in branch chain amino acids (these are the amino acids leucine, isoleucine and valine). So depending on which amino acid you think is more important to your lifestyle may dictate which protein you favour more of in your blend.
Then lastly you also have the absorption rates to consider since casein is shown to be absorbed by the body much slower than whey protein and soy protein which means it’s ideal before bed since it slowly absorbs and increases protein synthesis over a longer period. Whereas soy and whey are absorbed far quicker so may be better during the day. These are just a few of the differences between each individual single source protein but as you can see by knowing their individual properties you can create a blend that’s best suited to you.
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