A balanced diet includes a variety of nutrient-dense foods from all food groups in appropriate portions. The basic food groups that should be included in a balanced diet are carbohydrates, proteins, fats, vitamins, and minerals. Carbohydrates provide energy and can be found in foods such as grains, fruits, and vegetables. Proteins are important for growth and repair of tissues and can be found in foods such as meat, fish, eggs, and legumes. Fats, while often considered unhealthy, are actually necessary for the absorption of certain vitamins and minerals and can be found in foods such as nuts, seeds, avocado, and oily fish. 

Vitamins and minerals are essential for maintaining a healthy immune system and can be found in fruits, vegetables, dairy, and meat. It is important to eat a variety of different foods within each food group to ensure that you are getting all the necessary nutrients. For example, instead of just eating white bread, try incorporating whole wheat bread, quinoa, or brown rice into your diet. Instead of just eating chicken, try incorporating fish, tofu, or legumes for protein. Instead of just eating butter, try using olive oil or avocado for fats.