How do u wean ur baby?

Hi mommies! Care to share how u wean off ur baby frm BF? N wat formula u intro to them? All my friends & family did intro me Dumex Mamil Gold fr their LO as it is good for their digestive system. With all the prebiotics & good gut, my LO will not have those constipation as having an importance of digestion is a happy baby! I came across tis as well.. Mommies.. Wat is ur say? Any of ur LO on Dumex as well?