+**B3** refers to a vital [vitamin](/wiki/vitamin), also known as Niacin, essential for human [metabolism](/wiki/metabolism). It plays a crucial role in converting food into energy and maintaining cellular health, supporting the body's fundamental processes. Its presence is key for overall well-being.
+## See also
+- [Niacin](/wiki/niacin)
+- [Diet](/wiki/diet)
+- [Nutrition](/wiki/nutrition)
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