is fast weight gain is important because my 11 month kid is 9 kg according to his birth weight he is less weight gain but he is very active and very expressive and also a fast learner too. but I am worried about his thin body.

A. Hello mom every individual have their own metabolism , and body type, so as far as he is active , reaching his milestones on time their is no issue. babies are expected to double their birth weight by the age of 4 to 6 months and then triple by the age of 1 year. give him almost nearing to family foods now