Soy protein is a plant-based protein derived from soybeans, offering all nine essential amino acids. It’s a popular alternative to whey for vegans or lactose-intolerant individuals.
Studies show soy protein supports muscle growth similarly to animal-based proteins when consumed in adequate amounts. It also contains isoflavones, which may benefit heart health by lowering LDL cholesterol.
Excessive intake may affect thyroid function in sensitive individuals due to goitrogens.
Synonyms: Soy isolate, Glycine max protein
Benefits:
- Complete plant-based protein
- Supports heart health
- Lactose-free and vegan-friendly
Sources: Powder, meat substitutes
Notes: Non-GMO options are preferable.