Issue? This isnt an issue just how we are; we don't have ruminant gut microbiomes cause we never needed to eat grains idiot.
Bread isnt natural, its fucking seeds. Its crushed seeds. Crushed seeds arent naturally-occurring.
Grains arent natural to our diet nor essential for living. Grains have absolutely no micro-nutrient profile ~ It dosen't & cannot nourish you. Its mass, not food.
If you can't live on it alone you shouldnt eat it tbh ~ might be a new theory
How is a eating food RAW - all Enzymes, Bacteria, & Micro-nutrients Intact and/or Active going to decrease microbiome diversity

.
And before muh plant = diversity. Why do you want antioxidants & literal poisons "diversifying" your gut.


Cause their comparing it to the Western-Diet of Goyslop, Soy, Seed Oils, Food of Convenience, & Actual plastic. Every single diet ever is better than the Western, Not evidence.