there are periods i don't treat either. lots of chews, i think sometimes are just great treats...
but sometimes i do get on a snack type treat frenzy, and what i use are: rosebuds, hibiscus, supplement from someone else that makes it [if they are on a good healthy pellet and hay, they don't need a supplement, but mine love this one..], oats, chamomile.. mostly herbs and such.
j