For everyone with Sjögren's or other auto-immune diseases you might find intermittent fasting an interesting topic. I used it for health reasons and longevity but I’ve just recently learned about it’s potential effects on the immune system.
sciencealert.com/early-evidence-suggests-that-fasting-like-diets-could-fight-autoimmune-conditions
thefastdiet.co.uk/forums/topic/autoimmune-disorders-and-fasting/
https://www.amazon.com/Science-Fasti.../dp/B075848T5T