A healthy diet helps children grow and learn. It also helps prevent obesity and weight-related diseases, such as diabetes. The following guidelines will help you give your child a nutritious diet: Offer five servings of fruits and vegetables a day Choose healthy sources of protein, such as lean meat, nuts and eggs Serve whole-grain breads and cereals because they are high in fiber Broil, grill or steam foods instead of frying them Limit fast food and junk food Offer water and milk instead of sugary fruit drinks and sodas Learn about your children's nutrient requirements. Some of them, such as the requirements for iron and calcium, change as your child ages.