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Whey Protein Isolate

Whey Protein Isolate or WPI is a rich source of essential, conditionally-essential and non-essential amino acids and is derived from cow's milk. Unflavoured whey protein isolate is typically 90% protein and is fast-digesting and therefore fast-absorbing. It naturally has a high biological value, which means the amino acids contained within the natural protein structure are in a composition that the human body can uptake readily into the cell. Manufacturing of whey protein isolate uses different processes including ion exchange and microfiltration.

 

Whey protein isolate typically contains around 22-24% branched chain amino acids—you might know them as BCAAs—which are naturally occurring within the complex protein structure. This means that WPI is an excellent stimulator of mTOR, one of the triggers for protein synthesis, and helps move our biology into a more anabolic state. Additionally, WPI naturally contains a very low level of lactose at around 0.5% by weight, which equates to 200mg (0.2g) per 30g serve. One 30g serve should be fine for most lactose intolerant individuals.

 

Whey protein isolate is for recovery, repair and lean muscle gains, or to supplement a diet that is low in quality protein, as a source of the all-important essential amino acids (EAAs). It may also be taken as a snack alternative.

 

There have been countless clinical trials conducted over the past few decades that have looked into the benefits of whey protein isolate for various health conditions, as well as to support sports and exercise performance. Due to the fact that whey protein isolate has such an excellent EAA profile, it is able to stimulate muscle protein synthesis, which is an important pathway required for adaptation to exercise. 

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