According to the Dietary Guidelines for Americans 2020–2025[PDF-30.6MB], a healthy eating plan:

• Emphasizes fruits, vegetables, whole grains, and fat-free or low-fat milk and milk products
• Includes a variety of protein foods such as seafood, lean meats and poultry, eggs, legumes (beans and peas), soy products, nuts, and seeds.
• Is low in added sugars, sodium, saturated fats, trans fats, and cholesterol.
• Stays within your daily calorie needs