Dr Oz: At-Home Probiotic Supplement Test Does your probiotic supplement really work? Dr Oz was excited to reveal an easy at-home test to help you answer this question for yourself. If you have a probiotic supplement at home right now, you can find out whether the live cultures in it are active. Dr Roshini Raj joined […] Click on the following link for the full story: Dr Oz: DIY Probiotic Supplement Test + Active Live Cultures