Hello everyone, this morning my daughter had a bowel movement after three…

Hello everyone, this morning my daughter had a bowel movement after three days. The amount is small, but still... and I noticed black dots in Kale or something like that (I don't know). (Photo in comments) I have been removing the baby food for a week now, only giving formula every day at 60-90ml (based on the child's condition). What could it be?