Niacin, also known as vitamin B3, is a water-soluble vitamin that plays an important role in converting food into energy. It helps maintain healthy skin, nerves, and digestion. Niacin is also involved in the proper functioning of enzymes and helps improve circulation and cholesterol levels. Good dietary sources of niacin include meat, fish, poultry, whole grains, nuts, seeds, and legumes.

英語での「niacin」の定義と意味

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