Glycine is the smallest and simplest amino acid, making it versatile for use in a wide range of functions. Glycine is necessary for the production of glutathione, DNA, creatine, bile, hemoglobin, and most proteins.* It also helps to promote glycogen storage, thereby making glucose readily available for energy production.* Glycine also functions as a calming neurotransmitter in the brain, where it facilitates nerve impulses and is important for the maintenance of healthy sleep patterns.* Natural color variation may occur in this product. Even when healthy foods and natural supplements weren't mainstream, NOW's founder Elwood Richard started his own company to meet consumer needs for health foods by offering affordable, high quality natural products. Still family owned 50 years later, NOW has never wavered from this mission. As one of the natural products industry's premier manufacturers, NOW owns and operates several manufacturing and distribution facilities in the United States and Canada. As a family-owned business NOW isn't beholden to shareholders. We have no outside interests to deter us from our long-term goal of providing value in natural products that empower healthier lives. *These statements have not been evaluated by the US FDA