### Instruction: Which ones of the following are considered nutrient-dense foods: soda, vegetables, fruits, chips, whole grains, seafood, cookies, eggs, beans, peas, lentils, unsalted nuts and seeds, fat-free and low-fat dairy products, fried chicken, lean meats and poultry.
### Response: Vegetables, fruits, whole grains, seafood, eggs, beans, peas, and lentils, unsalted nuts and seeds, fat-free and low-fat dairy products, and lean meats and poultry are nutrient-dense foods.