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NAD+ is a coenzyme for energy production and DNA repair, which has a role in cellular metabolism and longevity
These are common signs people bring up when they ask us about B12: Ongoing tiredness or low energy Trouble concentrating or remembering Pale skin Mood changes or irritability Feeling lightheaded or weak If several of these sound familiar, a simple blood test can help you and your provider decide on the next steps
Rubin GJ, Smith LE, Melendez-Torres GJ, Yardley L
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