" It’s shocking that we still tell teenagers that what they eat doesn’t have any effect on their skin and then subject them to years of antibiotics that can have serious effects on their health. Almost all of the patients I see in my practice with Crohn’s disease and ulcerative colitis have a history of taking antibiotics for acne, and while that doesn’t necessarily prove causation in those particular patients, the medical literature is full of studies that now confirm that antibiotic use, particularly in childhood, is a major risk factor for the development of these diseases. While "

― , The Microbiome Solution: A Radical New Way to Heal Your Body from the Inside Out