Formulated without gluten, GMOs, or soy, California Gold Nutrition L-Glutamine Powder is the best vegan glutamine powder on the market. It’s a pharmaceutical-grade amino acid that doesn’t contain any animal product. With each scoop, you’ll get 5g of AjiPure L-Glutamine sourced from Ajinomoto, improving your muscle protein synthesis. Moreover, the formula is ideal for supporting your muscular endurance and gastrointestinal and immune health.