Earthworms are one of the best foods to feed your toad, slugs are high in calcium and make great food to prevent MBD. Crickets are the common staple but are not nutritionally complete by themselves, roaches are high in protein and make a great staple for any larger frog. be careful when feeding mealworms and superworms, their chitin is higher and are difficult to digest. Pink mice are an acceptable treat but are high in fat and should be fed but every 2-4 weeks at the very best. Lastly, wild caught insects pose a risk of introducing parasites to the frogs but can give a great variety.