How long for food to get in to milk?

[Amy_T]

Just wondered if anyone knows how long it takes for food you eat to form part of your breast milk? My little lady seems to be getting tummy ache a fair bit and I trying to figure out whether there's something she doesn't like.
So if I eat my tea at 5pm when will she get it?!

 

[hopingforit]

My lo's ped said that you have to cut something out for a day or so to figure out if that is causing the problem. As far as I know, things get to breastmilk fairly quick like within an hour(caffeine, alcohol) so I'd assume other things do also but it could take a bit of time for your lo to have a reaction to it.