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Description
Excess iron is typically stored in ferritin to prevent it from catalyzing the formation of hydroxyl radicals, which can react with polyunsaturated fatty acids in the cell and plasma membranes
Generally well tolerated
Buus, S

One study found that low B12 and folic acid (another B vitamin) levels may co-cause high Homocysteine levels and eventually lead to ED
The manufacturer must clearly state in the product manual that "for research use only, not for human treatment", and remind users to be aware of potential risks

Currently, there is no practical way to measure individual NNMT activity to predict response
