Child Specialist Vaishali. What is dietary diversity and how to take care of it during complementary feeding. Dietary diversity means feeding a child different types of food so that his/her requirements are adequately met. Minimum dietarydiversity is consumption of four or more food groups from the seven food group to make daily energy and nutrient requirements. This ensures that the child had a high likely hood of consuming at least one animal source food , One fruit or vegetable that day in edition to a staple food( grain root or tuber.)