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Vegan Baby Bowel Movements

by Anonymous

All of my friends with babies are non-vegan so I don't really have anyone to ask. Does an exclusively vegan breastfed baby's bowel movements differ in color than non-vegan breastfed babies? My little one is 9 weeks and the last two weeks his bowel movements have changed from a mustardy color to a green and sometime brownish green and not as "seedy" as previously. Is it because I'm vegan or could there be something wrong?

Thank you!

Vegan Momma's Comments:

Hi fellow Vegan Momma!

Poop is one of those fascinating baby topics that to non-parents is totally disgusting. But for us, it really can tell us quite a bit about how the human body is functioning. I actually remember googling this very topic and not finding much information, so I'm glad you came here to discuss.

At our newborn photo shoot, our photographer said that normally newborn poop has no scent and ours actually smelled sweet. Interesting, right? I told her what I eat and she guessed that it's likely related. How could it not be?

I was more proud of this than worried though, and I continue to be very happy with my daughter's bowel movements, which are soft but well formed and large, showing that all the fiber she eats is helping to clear everything out of her colon and bowels and not getting stuck like animal products are prone to do.

To reassure you, breastfed babies do have seedy bowel movements, which has something to do with how their bodies break down the breast milk. I'm not sure that any research has ever been done on the different types of poop based on what the mother is eating, but to me it totally makes sense that if your breast milk is completely supplied with plant food the result is going to be a baby who processes their food in a different way.

My baby also stopped having seedy poops around the same time as yours, and she was absolutely healthy and happy. We also went through different shades of poop, and I personally would not be worried about a greenish or brownish-green poop. If you eat more green food than other moms, there's a good chance your baby is going to shed some more green than theirs.

You're probably correct in assuming that your baby's bowels will move differently than even other breastfed babies and therefore you can't compare by asking other mothers. Come here though and we should be able to offer up some opinions.

Another thing to put your mind at ease... their bowel movements change all the time. Breast milk also changes constantly to adjust to how much your baby is growing and developing, so it makes sense that you would notice a change around 9 weeks. In the beginning all the little changes can be worrisome, but you will get used to seeing differences and will start to recognize a pattern.

What I would consider alarming baby bowel movements would be extremely watery diarrhea that lasts for more than a day (because of the risk of dehydration), and going for more than a week without a stool. I have to say though, it's really unlikely that a vegan baby is going to go that long without a bowel movement. The time we hit two days without a poop I was concerned because I was so accustomed to her several times a day bowel movements. Of course it was absolutely normal and simply related to the fact that she was eating more solids and her body was learning how to process that change.

I will say this though, if you ever really worry about anything with your baby, the best move is just to call their pediatrician. A doctor can properly triage whether the bowel movements sound concerning or whether it's absolutely normal. Do not feel bad about calling whenever you feel the need; this is what being a mom is all about, especially when you're new in the role.

Anyone want to add any experience with their children having different poops than other breastfed babies?


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Apr 15, 2018
Vegan breastfed baby
by: Sarah

I've been on a vegan diet for the past week and lately my 4 month old who is exclusively breastfed has had changes in his poo. Instead of the yellow color and the sweet smell, it is now a greenish brown and the smell has definitely changed. It's not terrible like a baby who eats solids or drinks formula, but it's definitely not as sweet. This is my fourth baby breastfed baby and my first to experience a vegan diet from my milk. My other three kiddos experienced breastmilk from a basic diet and their poo did not change color or smell until solids were introduced. So, yes, there are definitely differences in poo color and smell for an infant drinking breastmilk from a vegan mom.

Jan 03, 2017
Vegan Baby Poop
by: Ashley

Hi, I've been vegan for about a month now, and I'm the mother of a two-month old exclusively breastfed baby. After a month of just eating plants, her poop has changed consistency from liquid-seedy to something like a thick paste. The color is still mustardy.

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