3 year 2 month old child is still 12 kg since last 1 year. was on formula milk since birth I still give formula milk to him at night when sleep. which milk to give him to increase weight, cow or baffalo??

A. Buffalo milk is going to be good but there is no guarantee of weight increment because seems like your child is having some issue with the digestion or some nutritional deficiency because of the weight gain has been stagnant for almost a year it’s not because of only milk it’s probably because of another issues