Soy Protein Isolate
This is what the ingredient is.
Soy protein isolate is a highly refined form of soy protein containing ~90% protein.
Here is why it shows up on the label.
It works as a protein source and texturizer. Used in meat alternatives, protein bars, and beverages.
Here is what food agencies say.
The FDA lists Soy Protein Isolate as Generally Recognized as Safe. European food agencies also allow it in food. Subject to allergen labeling.
Here is what research has found.
Complete protein with all essential amino acids. Contains isoflavones. Cholesterol-lowering claims approved by FDA.
Here are a few things worth knowing.
CONTAINS SOY - major allergen. Phytoestrogen content debated; generally considered safe at food levels.
Sources
- FDA GRAS
- USDA
- Clinical Studies
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.