What is vitamin PP

Nicotinic acid is a white needle-like crystal and is slightly soluble in water; nicotinamide is a white crystal and is easily soluble in water. The drug is generally used as nicotinamide, because niacin has a temporary vasodilating effect. This vitamin is relatively stable and will not be inactivated when cooked. Nicotamide combines with ribose, phosphate and adenine in the body to form the coenzyme I and coenzyme II of the dehydrogenase. The nicotinamide moiety in these two coenzyme structures has reversible hydrogenation and dehydrogenation properties and plays a hydrogen transfer role in biological oxidation. These coenzymes are required for the metabolism of sugar, fat and protein.

Yeast, peanuts, liver, fish and lean meat are rich in content and can also be industrially synthesized.

The human body needs about 20 mg per day. When people lack this vitamin, they manifest as neurotrophic disorders. At first, they are weak, and later symmetrical dermatitis appears on both hands, cheeks, left and right forehead, and other exposed areas. Large doses of niacin can dilate small blood vessels and reduce blood cholesterol content; it is often used clinically to treat inner ear vertigo, peripheral vascular disease, hypercholesterolemia, optic nerve atrophy, etc. (Editor in charge: Tian Tian)