How Bad Is It Really to Eat Soy Protein Isolate? | Livestrong.com

Soy protein isolate is the main protein source in many vegan protein bars and powders. Image Credit: LIVESTRONG.com Creative How Bad Is It Really? sets the record straight on all the habits and behaviors you’ve heard might be unhealthy. In This Article Soy Protein Isolate 101 SPI in Foods Nutrition Facts Benefits Risks The Bottom Line Scan a protein bar's ingredients list and you'll likely spot soy protein isolate somewhere in the long paragraph of (often unfamiliar) items. Advertisement The term "soy protein isolate" sounds straightforward enough, but when you stop to think about it, you might realize you're not actually sure how the increasingly popular ingredient is produced or if it even differs from the protein found in other soy-based products like tofu or tempeh. Luckily, we've got answers. Video of the Day Video of the Day Below, registered dietitians answer all your questions about soy protein isolate, including where it's found, how it stacks up nutritionally and whether it's...