why my 7month son having sometime deepgreen to black stool,although he is very active and rest thing are alright

A. Green poop may indicate a foremilk/hindmilk imbalance in breastfed babies, which results in your baby is getting a larger portion of foremilk (watery milk) than hindmilk (thicker, fattier milk). Though this can cause tummy discomfort, it doesn't indicate a milk supply issue or problem with your milk.