Top Health Benefits of Riboflavin (Vitamin B2) and Recommended Dosages

Modified on Mar 23, 2025 | Deirdre Layne

Riboflavin.

Riboflavin, commonly known as vitamin B2, is essential for maintaining good health, boosting energy levels, and reducing inflammation. Many individuals supplement with riboflavin to alleviate symptoms like congestion, migraines, and chronic fatigue. Below, we detail why people take riboflavin and recommended dosages for each use.

Why People Take Riboflavin Supplements

1. Reduces Congestion and Supports Respiratory Health

Riboflavin's anti-inflammatory effects can relieve nasal congestion and improve respiratory comfort by maintaining healthy mucous membranes.

Recommended dosage: 25–100 mg daily.

2. Effective Migraine Relief

Riboflavin is widely used to prevent migraines, reducing both frequency and severity by improving mitochondrial function and lowering inflammation in the brain.

Recommended dosage: 400 mg daily.

3. Boosts Energy Levels and Reduces Fatigue

Vitamin B2 plays a vital role in energy metabolism, helping convert nutrients into usable energy, improving stamina, and reducing fatigue.

Recommended dosage: 50–100 mg daily.

4. Supports Eye Health

Riboflavin contributes to eye health by reducing strain, sensitivity to light, and the risk of cataracts, supporting clear vision.

Recommended dosage: 25–50 mg daily.

5. Promotes Healthy Skin and Hair

Supplementing with riboflavin supports healthy skin, hair, and nails by aiding cell regeneration and growth.

Recommended dosage: 25–50 mg daily.

6. Enhances Immune Function

Riboflavin boosts immune health by supporting cellular functions and reducing oxidative stress, helping the body resist and recover from illnesses.

Recommended dosage: 25–50 mg daily.

7. Improves Mood and Mental Clarity

Vitamin B2 supports neurotransmitter balance, enhancing cognitive function, mood stability, and reducing anxiety.

Recommended dosage: 25–100 mg daily.

Recommended Dietary Allowance and Sources of Riboflavin

The daily recommended intake for general health is approximately 1.1 mg for women and 1.3 mg for men. Higher doses listed above are therapeutic for specific concerns.

Dietary Sources of Riboflavin:

  • Dairy products (milk, cheese, yogurt)
  • Eggs
  • Leafy green vegetables (spinach, kale)
  • Lean meats (chicken, turkey)
  • Nuts and seeds
  • Whole grains

Possible Side Effects and Precautions

Riboflavin is generally safe at recommended dosages, though high doses may result in harmless bright yellow urine. Always consult a healthcare provider before beginning supplementation, particularly if pregnant, nursing, or dealing with chronic health issues.

Final Thoughts

Riboflavin supplements offer numerous health benefits, especially for managing congestion, migraines, fatigue, and improving overall wellness. Incorporating vitamin B2 into your routine can significantly enhance your quality of life.

Continue reading below to learn how Earth Clinic readers have successfully used riboflavin for various health issues. Share your experiences and insights with us!

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Riboflavin (B2) Health Benefits
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