my son is 4 month old and from the beginning I'm giving him AtoZ drops daily drops as suggested by pediatrician but from two days in his poop I'm observing brownish or dark chocolate colour slimy strings in his poop.

A. If It is more slimy then you should get it checked with your doctor go ahead with a stool test to be more sure about it it cannot be due to the supplement that you are giving because that supplement is very common it is given to every child after the birth for at least six months to 1 year