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Functional and confirmatory markers Methylmalonic acid (MMA), homocysteine, and holotranscobalamin can provide information that total B12 does not
You can find it in animal products like meat, fish, and dairy
Vitamin B12 injections are typically prescribed for people with symptoms associated with a vitamin B12 deficiency
Nicotinamide (niacinamide) does not cause flushing and has fewer side effects, with nausea and liver toxicity reported only at very high intakes ~3 g/day)
It helps with mental clarity and improves your memory
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