Of course. It is always and highly advisable to gut-load your feeders with fruits and veggies. Your pets also take in what their feeder does. Avoid feeding lettuce and cabbages to feeders as they only contain water and as such, has no bearable nutritional value for your pet.

Also avoid feeding your feeders with fruits and veggies belonging to lethal plant families like tomatoes, potatoes, rhubarbs, eggplants and those referred to as no, nos to every animal (i.e. garlic, onion, leeks, chili peppers, grapes)