What is Brown Rice Protein? Brown rice protein is a concentrated segment of whole grain rice, with fiber being separated from the protein through various processes incorporating enzymes. Benefits of Brown Rice Protein This protein source has a complete amino acid profile, available to vegetarians and vegans, with similarities to mother’s milk. Who is Brown Rice Protein suitable for? This naturally produced product is an alternative to whey and soy protein. *This statement has not been approved by the FDA Please note that the labelling on this product is provided in English as a minimum. French, Italian, German, Spanish, Danish, Swedish and Finnish may also be present on a product by product basis.