I am a Nutritional Expert and Health Coach and I hate to inform you that Oxypowder also destroys gut and intestinal flora. It does it with oxygen which kills good and bad bacteria. It does take time to re-build the gut flora but it can be done if you eat enough of a variety of probiotics and fermented foods. By the way you should NEVER have a colonic or take an Antibiotic without following it with a very good probiotic and fermented food regime. With the proliferation of Antibiotics in non-orgainic meat and poultry this is a good idea in general. You need those helpful bacteria for intestinal health.