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[ref] Nitric Oxide Connection Endothelial nitric oxide is a gas produced by the endothelial cells that line blood vessels
There are no known toxic effects when administered at appropriate levels
Athletes and active individuals often notice its benefits because it boosts how much energy their mitochondria produce
Among elderly individuals, vitamin B 12 deficiency is more common, primarily because of impaired intestinal absorption that can result in marginal to severe vitamin B 12 deficiency in this population
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