Height is partly inherited, and partly acquiredabout 60 to 80 percent of the difference in height between individuals is determined by genetic factors, whereas 20 to 40 percent can be attributed to environmental effects, mainly nutrition.Here are some points for parents onchildhood growth and development.

The most important nutrient for final height is protein in childhood. Minerals, in particular calcium, and vitamins A and D also influence height.

1. Good bone development is closely related to diet, the most important nutrient for final height is protein in childhood. 
Minerals, in particular calcium, and vitamins A and D also influence height.Intake collocation of diverse protein e.g. bean, rice and meatis better than one single protein. Mixed nuts as well as milk and yogurt are also helpful to bone growth and strength. 

2. Calcium is another key factor, but many parents have misunderstanding about calcium supplements. 
Blindly giving children foods which are rich in calcium does not necessarily help their height, this is because calcium is attached to collagen in the human body. If there is insufficient collagen (which acts a as a carrier) in a child's body, calcium intake is meaningless. 

3.The significance of sports and exercise to bone growth is the same as diet. 
Choosing right sporting activities for children will be helpful to both their physical and mental growth and development.

4.Here are some important numbers that parents need to remember. 
Ages 3-14 is crucial for bone development. According to the World Health Organization research data, children grow unevenly in a year. May is the month that kids grow the fastest, with an average length of 0.73 cm. And October is the slowest time of the year, with an average height of only 0.33cm.

In May, the metabolism and blood circulation of the human body is at a highest level, and the respiratory and digestive functions are also strengthened. In addition, the secretion of endocrine hormones, especially growth hormone is also increased, which creates "golden conditions" for children in the growth and development period. In addition, in May is the highest in one year in many parts of the world. Vitamin D has been long known to improve bone health and growth, by helping our bodies process calcium effectively.Vitamin D is essential for bone and muscle health as it promotes calcium absorption from our food. Our bones need the added mineral to make them strong and supportive. 

Sunlight is the best natural source of Vitamin D. Vitamin D helps our bodies to process calcium effectively and is essential for healthy bones.