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Benefits of Vitamin B3 for the human body

May 29,2025

Participates in the catabolism of carbohydrates, fats and proteins as a component of the coenzyme NAD/NADP, providing an energy base for cells34.
Benefits of Vitamin B3 for the human body

Key Benefits of Vitamin B3 in the Human Body

1. Core metabolic functions

Promotes energy metabolism

Participates in the catabolism of carbohydrates, fats and proteins as a component of the coenzyme NAD/NADP, providing an energy base for cells.

Supports DNA repair and cell regeneration

Plays a key role in DNA damage repair and cell proliferation and differentiation to maintain normal tissue function.

2. Skin health maintenance

Enhances skin barrier function

Promotes lipid synthesis in the stratum corneum, reduces water loss, and improves dryness, acne and eczema.

Reduce UV damage

Reduces photoaging through antioxidant properties and prevents hyperpigmentation and inflammatory reactions.

3. Cardiovascular protection

Regulates blood lipid levels

Reduces low-density lipoprotein (LDL) and triglycerides, raises high-density lipoprotein (HDL) and reduces the risk of atherosclerosis.

Aids in controlling blood pressure

Promote vasodilatation, improve hemodynamics and prevent hypertension-related complications.

4. Nervous system support

Promote neurotransmitter synthesis

Involved in the production of dopamine, serotonin and other neurotransmitters, improve cognitive function and mood regulation.

Delay neurodegenerative diseases

Reduce the risk of Alzheimer's disease and protect nerve cells from oxidative damage.

5. Immune regulation and disease recovery

Enhance anti-infection ability

Activate immune cell function and accelerate pathogen clearance58.

Accelerates new crown recovery

Regulates the metabolic balance of intestinal flora and shortens the recovery cycle of patients with mild-to-moderate new crowns (studies have shown a correlation with the form of nicotinamide).

6. Metabolic disease intervention

Improve metabolic disorders in diabetes

Synergize with other B vitamins to alleviate insulin resistance and assist in blood glucose management.

Prevention of malnutrition-related conditions

Prevent pellagra (typical symptoms: dermatitis, diarrhea, dementia), repair niacin deficiency.

7. Other clinical applications

Relieving vomiting in pregnancy

Regulate hormone secretion, reduce nausea and vomiting symptoms in early pregnancy.

Promote mucous membrane repair

Accelerate healing of mouth ulcers, improve dry and cracked lips and keratitis.

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