Vitamin B3 (Niacin),

Vitamin B3 (Niacin)

The Ultimate Guide to Vitamin B3 (Niacin): Characteristics, Health Benefits, and Abundant Food Sources

Vitamin B3, also known as Niacin, is a powerhouse nutrient critical for a variety of bodily functions, including energy production, brain function, and skin health. This comprehensive guide aims to delve deep into its characteristics, explore its health benefits, and list an extended range of foods rich in Niacin.

Characteristics of Vitamin B3 (Niacin)

Fundamental Properties

  • Water-Soluble Vitamin: Easily absorbed and excreted by the body.
  • Chemical Forms: Nicotinic Acid, Nicotinamide, and Inositol Hexanicotinate.
  • Stability: Relatively stable in heat, light, and air, making it resistant to cooking losses.
    Vitamin B3 (Niacin)

Recommended Dietary Allowances (RDAs)

  • Adult Men: 16 mg NE/day
  • Adult Women: 14 mg NE/day
  • Children: 2–16 mg NE/day depending on age

Health Benefits of Vitamin B3 (Niacin)

Energy Production

Critical for converting food into usable energy through various enzymatic processes.

Brain Function

Supports healthy brain function and can help improve mood and mental clarity.

Skin Health

Essential for maintaining healthy skin, and it may help to treat certain skin conditions.

Cholesterol Regulation

Can lower LDL (“bad”) cholesterol levels and increase HDL (“good”) cholesterol.

Hormone Synthesis

Plays a role in the synthesis of several sex and stress-related hormones.

Extended List of Foods Rich in Vitamin B3 (Niacin)

Animal-Based Foods

  1. Chicken Breast: 14.8 mg per 3 oz serving
  2. Turkey: 10 mg per 3 oz serving
  3. Salmon: 8.5 mg per 3 oz serving
  4. Tuna: 8.6 mg per 3 oz serving
  5. Beef Liver: 13.6 mg per 3 oz serving


  1. Anchovies: 5 mg per 2 oz serving
  2. Sardines: 4 mg per 2 oz serving
  3. Mackerel: 8 mg per 3 oz serving
  4. Trout: 6 mg per 3 oz serving
  5. Shrimp: 2 mg per 3 oz serving

Dairy Products

  1. Cheese (Swiss): 0.4 mg per ounce
  2. Milk: 0.2 mg per cup
  3. Yogurt: 0.3 mg per cup

Plant-Based Foods

  1. Mushrooms: 3.9 mg per cup cooked
  2. Avocado: 1 mg per half avocado
  3. Sweet Potato: 1.5 mg per cup
  4. Spinach: 0.8 mg per cup cooked

Nuts and Seeds

  1. Peanuts: 3.8 mg per ounce
  2. Sunflower Seeds: 1.8 mg per ounce
  3. Almonds: 0.9 mg per ounce

Cereals and Grains

  1. Fortified Cereals: 20-30 mg per serving
  2. Brown Rice: 1.9 mg per cup cooked
  3. Whole Wheat Bread: 1.3 mg per slice
  4. Oats: 0.8 mg per cup cooked


  1. Lentils: 1 mg per cup cooked
  2. Chickpeas: 0.6 mg per cup cooked
  3. Black Beans: 0.4 mg per cup cooked


  1. Banana: 0.8 mg per medium-sized banana
  2. Mango: 0.6 mg per medium-sized mango
  3. Orange: 0.2 mg per medium-sized orange
    Vitamin B3 (Niacin)


Vitamin B3 (Niacin) is an essential nutrient that impacts multiple facets of your health. From energizing your body to keeping your brain and skin in top condition, the benefits are truly multifaceted. Make sure to include a variety of Niacin-rich foods in your diet to get the most out of this incredible nutrient.


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