Honestly. I could tell what DD2 has eaten (nearly) from the contents of the potty. Age 3.5. Just wondered if anyone else has kids that do this? If she's had chicken for tea and scrambled eggs with ketchup for brekky, her 11am poo will be pale yellow/brown to halfway down (sorry this was bound to be graphic) then go pink (she likes ketchup) for the second half - joined together like squished plasticine tubes. I think Gillian McKeith would approve of consistency/texture, but is this normal??? DD1 has always had uniform colour no 2's.
Once 6 mo's ago found trace of blood on a poo but as DD2 was so perky and had had to strain a bit to get it out, I put it down to one of those things. Never happened since.