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Soy protein
A supplement protein powder made from soybeans (soy protein isolate or concentrate), a major plant-protein type distinct from whey and generic plant blends; mixed into water or a shake. It is a concentrated source of plant protein and also carries soy isoflavones.
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A possible source of
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Worth knowing
Soy protein is derived from soybeans, a common allergen, and is not suitable for people with a soy allergy. It also carries soy isoflavones, plant compounds with mild phytoestrogen activity.