Avoiding soy-containing foods is essential for soy allergy sufferers. Soy allergies occur when the immune system reacts to soy proteins. Vegan protein powder is ideal for a soy-free alternative.
Given that, whey protein can contain isoflavones, due to soy in cow feed, Whey can be dangerous to intake. Same case, with vegan
Whey Proteins are always not soy-free
Soy is technically plant-based but for people with soy allergy protein intake is critical. Any FSSAI-regulated foods in India, must contain the word "Soy".
Vegan Proteins can have soy unless labelled soy-free!