Which vitamin is known as riboflavin?

Which vitamin is known as riboflavin?

• A. Vitamin A
• B. Vitamin B2
• C. Vitamin B6
• D. Vitamin C

Answer: (B)

Riboflavin is vitamin B2, a water-soluble vitamin that forms the coenzymes FAD and FMN. These flavin coenzymes participate in many redox reactions, which are essential for turning nutrients from carbohydrates, fats, and proteins into usable energy. They also support antioxidant defenses through enzymes like glutathione reductase. Because riboflavin is tied to energy production in cells, tissues with high energy demands are most affected when it’s deficient. Good dietary sources include dairy products, eggs, meat, and fortified cereals. Other vitamins mentioned—vitamin A (involved in vision and cell growth), vitamin B6 (pyridoxine, important for amino acid metabolism), and vitamin C (ascorbic acid, important for collagen synthesis and antioxidant protection)—are different nutrients with distinct roles, not riboflavin.

Riboflavin is vitamin B2, a water-soluble vitamin that forms the coenzymes FAD and FMN. These flavin coenzymes participate in many redox reactions, which are essential for turning nutrients from carbohydrates, fats, and proteins into usable energy. They also support antioxidant defenses through enzymes like glutathione reductase. Because riboflavin is tied to energy production in cells, tissues with high energy demands are most affected when it’s deficient. Good dietary sources include dairy products, eggs, meat, and fortified cereals. Other vitamins mentioned—vitamin A (involved in vision and cell growth), vitamin B6 (pyridoxine, important for amino acid metabolism), and vitamin C (ascorbic acid, important for collagen synthesis and antioxidant protection)—are different nutrients with distinct roles, not riboflavin.