No, they most likely were not fed any vegs. But thank you. Do you think I should start with bell peppers?Do you know if they were fed veg you yu got them?
If you are unsure then you need to build up veg slowly. One veg at a time in small amounts. Then introduce another new veg, slowly increase amounts. Basically do it all very slowly and gradually.
if you notice any soft poops or digestive upsets, then stop feeding all veg until 24 hours after poops return to normal, and then begin again slowly.