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HomeAnswersPediatricsformula feedingMy 12-week-old baby poops dark green stools. Is it because of feeding lactose-free formula?

Does feeding a 12-week-old baby with Lactose-free formula cause dark green stools?

The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Sajeev Kumar

Medically reviewed by

iCliniq medical review team

Published At June 4, 2022
Reviewed AtSeptember 24, 2023

Patient's Query

Hi doctor,

I want to ask about my baby. She is 12 weeks old now. The baby is fed with Lactose-free formula, and her stools are dark green or greenish-tan. Sometimes can see yellow color mixed with green. Sometimes her stools are soft, and sometimes it is harder. She poops once or twice a day. She feels well and eats well. We changed the formula with a doctor's advice because her stools were runny with mucus and had a bad smell. She pooped very often, and she ate a small amount of formula. She had no rash and no vomiting. So, I would like to ask if it is normal if baby poops are green, and when can we return to the normal formula?

Thank you.

Answered by Dr. Sajeev Kumar


Welcome to icliniq.com.

First of all, my advice to all mothers is that the baby should be fed mother's milk and not a formula. Even if you give formula against the best advice, you provide it with a spoon and not a bottle with a nipple. Yes, the poop can be green.

Take care.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Sajeev Kumar
Dr. Sajeev Kumar


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