Most leading glutamine products that come from feathers, animal fur, or human hair. Kaged Muscle Glutamine utilizes industry-leading fermentation to deliver a clean, premium plant-based and vegan-friendly product. More than just a post-workout staple for protein synthesis and muscle recovery, glutamine has been shown to support immune function and gut health – two vitally important factors that can make a significant impact to your overall health, wellbeing, and performance.