Hi,
Thanks for asking query on health care magic.
Height depends upon his genetic makeup and heights of his parents.
Little we can do about it unless there is a specific cause which is treatable.
!! years boy weighing 22 kg is really less.
He should weigh approximately 36 kgs.
Any specific cause like TB, Worm infestation or
malnutrition or malabsorption
to be investigated.
In general give good food containing sufficient calories and
proteins ,fats,
vitamins and mineral in a balanced way
Better
consult pediatrician to find out the cause and for proper guidance of the diet.
Hope this answer will serve your purpose.
Please feel free to ask any more queries if required.
Take care
Dr.M.V.Subrahmanyam MD; DCH.
Associate professor of pediatrics, MIMS.