There’s a compelling sentence in the book by Dr. Steven R. Gundry on the connection between the gut and the brain. In considering addictions, he wrote, “Our brains are under the direction of our microbiomes. We need not feel guilt or shame because of an addiction or a brain alteration.” He asserts that addictions or other brain illnesses are not our fault. They result from the bacteria in our gut, also known as the microbiome.

Dr. Steven Gundry during the 2019 Web Summit 2019 in Lisbon, Portugal. Piaras O. Midheach/Web Summit via Sportsfile/CC BY 2.0