My baby is in his 4th month now, he has been doing green potty since his 2nd month (still doing the same colour), is it normal or should he be doing yellow poop ? he is mostly on top feed Nan pro1

As your baby is on formula the color of the poop is fine.

my baby also lik tat green potty only m also gve naan pro 1

so till when can we expect the green coloured poop or will it continue till 6th month when we start giving feed other than milk too