The convention's definition of torture is extremely narrow. It excludes acts of torture committed by individuals in a personal capacity, except in cases where there is some government, or official, complicity. The concept of torture as an international crime is correspondingly constrained. Drug offenses.
During warm months, catching local insects (nontoxic, of course) can provide added variety. Moths seem to be particularly relished by most toads. In the wild, they eat grubs, spiders, worms, insects, slugs, snails and other invertebrates. If your toads are wild-caught, try offering them what they eat in the wild. Adult toads should be offered three to six food items every other day. Toads under an inch in length should be offered appropriately sized food items, such as flightless fruit flies, pinhead crickets and other tiny insects.
Frogs will eat flies, crickets, spiders, beetles, grasshoppers, all sorts of insects and if there happens to be a smaller frog to hand, it will probably eat that too. They will also eat small invertebrates, ants and forest mites. The Cane toad will eat almost anything!