I follow a yeast-free diet to control an auto-immune disease called Hidradenitis suppurativa. Some doctors produced a study a while back where they found anti-Saccharomyces cerevisiae autoantibodies in HS patients. When patients followed a yeast and wheat-free diet they would see 100% remission of symptoms. The hardest part of following this diet is avoiding yeast as it is a major flavor component in almost all "ultra-processed foods", especially the "healthy" ones. Vegan and plant-based foods add yeast proudly. The problem is that our bodies have an innate immune system that is coded to recognize and fight fungi. Our DNA even codes for pattern recognizers that specifically target saccharomyces cerevisiae, also known as bread/baker's yeast. It's alarming to me that scientists know with certainty that yeast is innately inflammatory, and that inflammation is the majorcause of chronic disease, but have not put it together that maybe yeast should be avoided as a food additive.