Yes, pinkies should only be used as a rare treat and are not healthy for them. They are also harder to digest than insects and worms. Other frogs such as pacman frogs eat larger prey in the wild and have been conditioned to tolerate tougher foods. Think, what do they eat in the wild....bugs and worms . I'd avoid the pinkies all together for toads...you're just asking for health problems and likely an impaction risk.

Be careful on the mealworms also. Rare ones as treats are fine, but the chitin in their shells passes through undigested and can cause constipation and intestinal impaction, and may lead to rectal prolapse...not a good diagnosis to have to treat, and it's sometimes not curable. Think of what happens when you continue to eat lots of popcorn day after day. It's similar to that.

Crickets, earthworms, night crawlers, freshly molted roaches, wax worms are fine but are fatty and not really healthy for them, wax worm moths, occasional hornworm treats (but do not feed the hornworms tomatoes or tomato plants because the derivatives from the plants/tomatoes are toxic to frogs) -you can order safe ones from Great Lakes hornworms.

Good staple foods are worms, crickets and roaches. Gut-load your insects too .