I used to eat a lot of oatmeal and cream of wheat - during treatment cream of wheat was the only solid-ish food I could eat, and I didn't seem to get tired of it for some reason, despite the fact that I couldn't taste anything.

As far as saliva goes, I recently have started using ACT Drymouth mouthwash and so far it is the only product where I can tell a difference in my saliva (especially at night).