Vitamin B2, or Riboflavin, works as a key component in your body's energy-making process. It helps convert the food you eat into fuel and is vital for maintaining the health of your skin, eyes, and nervous system. A unique quality of Riboflavin is that it's sensitive to light. This is why it’s a good idea to store foods like milk and whole grains in opaque containers, away from direct sunlight, to preserve their full nutritional value.