my son is 48days old..but he is of weight 2.6kgs ..how to grow fastly

A. Breast milk is the only option available for babies under 6 months of age as babies should be exclusively breast fed until he or she completes 6 months of age. Always feed the baby on demand. Make sure that the baby empties one breast first before moving on to the next breast as the milk that comes towards the end, which is hind milk is rich in fat and helps in healthy weight gain.