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They are both needed to produce red blood cells and support DNA synthesis

Additionally, New Zealand studies have indicated its regenerative actions, including the stimulation of blood vessel and nerve outgrowth, synthesis of collagen, elastin, and glycosaminoglycans, support for immune function and nervous system

And there's a hormone that's released from there called melanocyte-stimulating hormone

Neurological Health: Glutathione protects brain cells and may improve cognitive function
