Scientists at Israel’s Technion and in Germany have discovered evidence that certain processed foods damage the intestine and weaken its resistance to bacteria, toxins and other hostile elements. This “leaky gut” syndrome increases the likelihood of developing autoimmune diseases.

http://www.technion.ac.il/en/2016/01/research-links-processed-foods-and-autoimmune-disease/

http://www.timesofisrael.com/study-shows-how-processed-food-lets-toxins-leak-into-your-gut/