My son is 6 years and 8 months old but is not gaining weight, tried many things, but of no use.. kindly suggest

A. Hello mom some kids their metabolism is such that they don’t gain weight very easily inspite of having a good diet , not to Worry family genes have a role to play in it . Toddler by the age of one year they triple their birth weight and then on gain about 2 to 4 kg yearly .. a little variation is acceptable as far as your child is active for his age