Nutrientist points out, a balance diet is very important, nowadays a high percentage of children have a very unstable balance of diet which lead to overweight, a portion of calcium, affecting growth development.

Young children who are already nutrient "over-board", plus lacking of proper excercise, with a daily habit of eating fatty foods and sugary drinks such as chips, cookies, fruit juices and sodas. Parents should try to train them to taste more table food and accept new taste and textures.Breast milk and formula provided adequate nutrition for your child as an infant, but now it's time for toddlers to start getting what they need through a variety of foods. One of the best ways to do this is to increase your child's activity level. With toddlers, this is as simple as making sure they get outside to run around for at least 30 minutes every day.

Finally, parents need to watch what they eat, too. If they see their mommy is eating cookies, they will want it too.

1. Protein helps build up cell structure

Protein builds, maintains and repairs body tissue. It is especially important for growth. In the United States, most children do not suffer from lack of dietary protein. It is important, to encourage children to eat two to three servings of meat, fish, poultry or other protein-rich food each day. Milk and other dairy products also are good protein sources for children.

2. Starch are important

Even though eating sufficient meat but lacking of starch product is not healthy for the body. Starch is basically a long chain of sugar (glucose) molecules.  Therefore eating starch enables us to take in lots of glucose efficiently which is used for energy.

3. Calcium effect height growth

There are a variety of vitamins and minerals which support growth and development during childhood. Calcium, obtained from milk and dairy products and from dark green, leafy vegetables, is usually sufficient nutritionally in the diets of young children. As children approach teen years, their dietary calcium intakes do not always keep up with recommended daily allowances. Calcium is particularly important in building strong bones and teeth. Bone density suffers when calcium needs are not met during childhood years. Osteoporosis, a brittle bone disease that affects older adults, begins in childhood if diets are not providing adequate calcium-rich foods.

4.Iron increase  concentration

Iron is an oxygen-carrying component of blood. Young children need iron for expanding blood volume which is accompanied during periods of rapid growth.  Meats, fish, poultry, and enriched breads and cereals are the best sources of dietary iron.
Most children eat diets that are adequate in Vitamins A and C. When children do not eat enough fruits and vegetables they run the risk of having low intakes of vitamins A and C. B Complex Vitamins come from a variety of foods, including grain products, meat and meat substitutes and dairy products. Generally, yougn children do not have trouble getting adequate intakes of the B Complex vitamins.