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Vitamin B12, also known as cobalamin, is a water-soluble vitamin that is primarily found in animal-based foods such as meat, fish, dairy products, and eggs
There is minimal downtime or side effects, making it a convenient option for many people
Most people feel more alert within a few days, but building healthy blood counts can take several weeks
When administered, NAD+ can be absorbed into tissues (or converted into precursor forms that enter cells) and may enhance the efficiency of mitochondrial energy metabolism
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