Whey Protein
This is what the ingredient is.
Whey protein is a mixture of proteins isolated from whey, the liquid byproduct of cheese production. Contains complete amino acid profile.
Here is why it shows up on the label.
Protein supplement and ingredient in protein bars, shakes, and baked goods. Provides nutrition and improves texture. Common in sports nutrition products.
Here is what food agencies say.
The FDA lists it as Generally Recognized as Safe. Considered food ingredient, not additive. Must declare milk allergen. It is approved globally in the US, Europe, and Canada.
Here is what research has found.
Well-studied protein source with high biological value. Research in Journal of Sports Science documents muscle protein synthesis effects. Generally safe and effective protein supplement.
Here are a few things worth knowing.
CONTRAINDICATED for individuals with milk/dairy allergy. Contains lactose - may cause digestive issues in lactose intolerant individuals (though isolates have minimal lactose). Very high protein intake may stress kidneys in susceptible individuals.
Sources
- FDA GRAS Database
- J Int Soc Sports Nutrition 2017
- Amino Acids Journal 2014
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.