my baby is 2month 24 days old his weight is now 5 kg but before 1month his weight is 5.1 kg. he isn't gaining weight what should I do now

A. Namaste Mom full term baby almost monthly gains in the range of 400 gm to 1 kg double their birth weight by the age of 4 to 6 months take care of your diet and have a healthy and well balanced diet preferably before baby feed time as that would help in good quality milk and help in weight gain