Brown rice protein is a plant powder made from sprouted or whole brown rice. Manufacturers remove the carbohydrates to produce a concentrated protein that supports muscle repair and daily intake goals. Because it is easy on the stomach, many people use it after workouts or as part of vegetarian, vegan, and allergy sensitive eating plans.
On its own this protein is low in lysine, an essential amino acid, which makes it incomplete. Pairing it with a complementary protein such as pea protein rounds out the amino acid profile.
Sourcing and processing can affect heavy metal levels in brown rice protein products. Anyone with a pre-existing kidney condition should speak with a healthcare provider before using concentrated protein supplements.