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Opened vial: Approximately 28 days at 2-8C refrigeration
It helps convert amino acids into other compounds such as neurotransmitters and is involved in the production of red blood cells and the breakdown of fats
Every claim is graded by evidence type
However, three major reviews didnt show sufficient evidence to support this claim (14, 15, 16)
Vitamin B3 (niacin) is involved in the citric acid cycle, in acetyl-CoA formation, and its coenzyme transitions from NAD+ to NADH
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