Vitamin B2 (Riboflavin)

December 11, 2025|Alvaro Gimeno

Vitamin B2 (Riboflavin) Benefits: Energy Production, Antioxidant Support & Cellular Health

What it is
Vitamin B2, or riboflavin, is a water-soluble B vitamin essential for energy metabolism, cellular function, and redox balance. It is naturally found in foods such as dairy products, eggs, lean meats, and green vegetables [1].

Riboflavin is required for the production of key coenzymes that support energy production and antioxidant defense, making it critical for overall metabolic health.

How it works in the body
Riboflavin is converted into its active coenzyme forms, flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN), which are involved in numerous biochemical reactions [2]. These coenzymes play a central role in mitochondrial energy production, helping convert carbohydrates, fats, and proteins into ATP.

Riboflavin also supports the function of antioxidant enzymes, including glutathione reductase, which helps maintain cellular redox balance and protect against oxidative stress.

In addition, it contributes to the metabolism of other nutrients, including vitamin B6, folate, and iron, highlighting its role in broader nutrient interactions and physiological function [2].

Primary benefits
• Supports energy production and metabolism
• Supports antioxidant enzyme activity
• Supports skin, eye, and cellular health

Typical intake (RDA)
• Men: 1.3 mg/day
• Women: 1.1 mg/day

Typical supplemental range
5–400 mg daily depending on purpose (e.g., higher doses used in specific protocols such as migraine support)

Safety notes
Generally very safe due to its water-soluble nature. Excess intake is excreted, often causing bright yellow urine.

Did you know?
High-dose riboflavin has been studied for its potential to reduce the frequency of migraines, likely due to its role in mitochondrial energy production.

References