What is considered the major dietary source of riboflavin?

• A. Fruits
• B. Dairy
• C. Vegetables
• D. Grains

Answer: (B)

Dairy products are recognized as the primary dietary source of riboflavin, also known as vitamin B2. This vitamin plays a crucial role in energy production and the metabolism of fats, drugs, and steroids. Foods such as milk, yogurt, and cheese are particularly rich in riboflavin, providing significant amounts in a serving. Other groups of foods, such as grains and certain vegetables, do contain riboflavin, but in comparatively smaller amounts than dairy. While fruits are generally not a significant source of riboflavin, they usually contribute other essential vitamins and nutrients to the diet. This makes dairy the standout choice when considering dietary sources for riboflavin.