green poo - what causes it?

[asur]

just as it says in the title. I know it's normal and I'm not worried or anything, just curious

How old is the child. Some formulas do this (my DD3 has fluorescent green poo on G&C - well maybe not fluorescent - LOL). If breastfed too much 'foremilk' can cause green poo. In an older child I guess it could be the food s/he is eating?

In BM it is too much lactose BTW - I don't think they can digest it.

thanks for that - he's 4months old breastfed... Just got me curious - wondered if it was maybe something I ate that he couldn't digest (not that I really fancy changing what I eat!)

at least it gives nappy changes a little variation - different colour every day

my dd gets it if i eat tuna fish!

Interestingly enough, if you leave a breastfed pooey nappy, it turns from mustard to green. I only discovered this when I switched to washables, I'm not in the habit of leaving disposables hanging around Which to my mind, means that a green nappy is nothing to do with the milk at all.

I think TikTok once put forward the theory that it was to do with how fast the milk travelled through the gut but I may be misremembering that.

I was told that wind caused green poo ?!

so was I!

Wind would make sense given that contact with the air turns mustard ones green.

It depends how long he's been having green poos... but usually it's no big deal and it does have to do with how the milk is digested.
It may be that the baby is swallowing quite a bit of air or it may be that he is having too much "foremilk" - if you feed from 2 sides do you always start from the last side you fed from ?
If baby is well in every other way it usually is not an issue.

it doesn't happen very often, just occassionally and it got me curious what caused it. he's totally happy and healthy so all is well. It's just one of many things that I never thought I would think about till I had DS!

i was told with my dd2 - breastf3ed - it was when she was taking too much of the sugary watery foremilk and not enough hind milk - found this especially in the summer.