Vitamin B2, also known as riboflavin, is an essential nutrient that helps our bodies convert food into energy. It plays a crucial role in maintaining healthy skin, eyes, and nerve functions. You can find vitamin B2 in various foods, including dairy products, eggs, lean meats, and green leafy vegetables. Getting enough vitamin B2 is important for overall health. A deficiency can lead to symptoms like sore throat, redness of the lining of the mouth, and cracks on the lips. Most people can meet their needs through a balanced diet, but supplements are also available for those who may need extra support.