Food groups are categories that classify different types of foods based on their nutritional content. The main food groups include fruits, vegetables, grains, protein, and dairy. Each group provides essential nutrients that our bodies need to function properly. For example, fruits and vegetables are rich in vitamins and minerals, while grains provide energy through carbohydrates. Eating a balanced diet involves including a variety of foods from each group. This helps ensure that we get a wide range of nutrients. For instance, protein sources like meat, beans, and nuts are important for building and repairing tissues, while dairy products offer calcium for strong bones.