GlycoCarn is the brand name for glycine propionyl-L-carnitine (GPLC). This compound bonds the amino acid glycine to propionyl-L-carnitine. The structure allows for better absorption and easier digestion than standard L-carnitine. The propionyl group supports nitric oxide production, which helps boost blood flow to muscles during activity.
Athletes take 1,000 to 4,000 mg of GlycoCarn each day, often in divided doses. For exercise, a serving 30 to 60 minutes beforehand on an empty stomach works best for energy metabolism and easing post-workout soreness. A daily routine also offers general cardiovascular support.
High doses can cause mild stomach upset. Anyone with a seizure disorder or thyroid condition should speak with a doctor before using this supplement.