Top Food Sources of Vitamin B3 ✓
Function: Metabolism, DNA repair
(Niacin - includes Nicotinic Acid & Niacinamide)
Vitamin B3 is a water-soluble vitamin essential for energy production, DNA repair, and maintaining healthy skin and nerves. It’s found mainly in meat, fish, nuts, and fortified grains.
- Key for Energy Metabolism – Vitamin B3 helps convert carbohydrates, fats, and proteins into energy by acting as a coenzyme in oxidation-reduction reactions.
- Water-Soluble Vitamin – As a water-soluble vitamin, Niacin is not stored extensively in the body and needs regular intake.
- Supports DNA Repair and Cell Signaling – It plays a critical role in repairing DNA and regulating cell functions.
- Maintains Healthy Skin and Nervous System – Niacin deficiency can cause pellagra, marked by dermatitis, diarrhea, and dementia.
- Can Be Synthesized from Tryptophan – The body can make Niacin from the amino acid tryptophan found in protein-rich foods.
- Sensitive to Heat – Cooking can reduce Niacin levels somewhat, but it is relatively stable compared to other B vitamins.
- High Doses Used Therapeutically – Large doses of Niacin can lower cholesterol but should only be taken under medical supervision due to possible side effects.
- Excess Intake May Cause Flushing – High supplement doses can cause skin flushing, itching, and gastrointestinal upset.

Chicken Breast (Cooked, Skinless)
Rich in Niacin, supporting energy metabolism and muscle health.

Tuna (Cooked)
Excellent source of Vitamin B3 and omega-3 fatty acids.

Turkey (Cooked, Skinless)
Contains high levels of Niacin, beneficial for skin and nervous system.

Salmon (Cooked)
Provides Vitamin B3 alongside healthy fats and protein.

Peanuts (Raw or Roasted)
Plant-based source of Niacin, good for heart and brain health.

Brown Rice (Cooked)
Contains moderate amounts of Vitamin B3 along with fiber.

Fortified Cereals (Various)
Often enriched with Niacin for convenient daily intake.

Lentils (Cooked)
Provide Vitamin B3 and plant-based protein for energy.

Avocado (Raw)
Contains small amounts of Niacin along with healthy fats.

Sunflower Seeds (Raw)
Rich in Niacin and antioxidants, supporting overall health.
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