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Whey Protein Isolate
Whey Protein Isolate
Whey Protein Isolate
What is it:
Whey protein isolate is a highly refined form of whey protein derived from milk during the cheese-making process. It is produced through a series of filtration and purification steps to remove most of the fats and lactose, resulting in a protein powder that is very high in protein content (typically 90% or more). The production process involves several stages, including acid or enzymatic precipitation of whey, followed by filtration, pasteurization, and additional filtration to separate the protein from other components. Unlike milk protein isolate, whey protein isolate contains no casein. The end result is a pure and concentrated protein powder with minimal carbohydrates and fats, making it a popular choice for athletes, bodybuilders, and those seeking a high-quality protein source with minimal additional nutrients.
Rating:
Whey protein isolate has been associated with various health benefits, including improving body composition and building muscle mass. Whey protein is a complete protein, as it contains all 9 essential amino acids. However, some research suggests that overuse of whey protein isolate may be associated with adverse health effects, including negatively affecting kidney and liver function. While dairy products have controversially been implicated in causing inflammation in some research, other research demonstrates that it may either not impact inflammation or may even help reduce it. However, whey protein isolate commonly does not come from organic sources unless specified, and non-organic dairy production is harmful to the environment, the cows, and can negatively impact dairy quality.
Resources:
- Whey protein isolate supplementation improves body composition (randomized controlled trial)
- Adverse effects of high intake of whey protein supplementation (systematic review)
- Whey protein isolate combined with resistance training increases muscle mass (randomized controlled trial)
- Dairy protein neutrally or positively influences inflammation (systematic review)
- Dairy products have an anti-inflammatory effect (review of clinical evidence)
- Dairy consumption has an anti-inflammatory effect (systematic review of randomized clinical trials)
- Environmental impact of dairy production (review)
How we rate ingredients
Health is like a bank account, certain ingredients make a deposit into your health bank, meaning they add to
your health. Certain ingredients withdraw from your health bank. We want health promoting ingredients in our diet. To keep things simple, we rate ingredients on a green, yellow, red scale:
Clean
It is naturally occurring in food and has no harmful effects on the body. It is real food. It is health promoting.
Caution
It goes into one or more of the below categories
- It is not naturally occurring in food but doesn’t have data showing it has a harmful effect on the body (additives like Gellan Gum)
- It is naturally occurring but can have some harmful effects on the body (added sugars, oils, gums etc.)
We Avoid
It is known to have a harmful effect on the body (ex. All food colorings, Natural Flavors, MSG, Potassium bromate, aspartame, artificial flavors)
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