What are the differences between glycine and glycinate, and how do they affect the body differently?

Glycine is an amino acid that is naturally found in the body and is important for various bodily functions. Glycinate is a form of glycine that is often used as a dietary supplement due to its enhanced absorption. Glycine can help with muscle growth, cognitive function, and sleep quality, while glycinate is known for its calming and relaxing effects on the body.