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Niacin or vitamin B3 is an important micronutrient that works as a cofactor for many enzymatic reactions in the body, along with the other B vitamins.
As an ingredient in dietary supplements, it is often combined with other vitamins and minerals. Fish, eggs, whole grains, nuts, pulses and dairy products are natural sources of this vitamin.
If you use supplementation and have any doubts, consult a healthcare professional.
