DIY Iodine Test Reveals Hidden Starches in Your Supplements

Many people take supplements to improve their health, but could some of those pills be causing digestive problems? A simple at-home iodine test can uncover hidden starches like maltodextrin in your supplements. Dr. Berg explains how to perform this DIY test to check for unwanted fillers that may trigger bloating or other gut issues. If your supplement turns dark blue or black when exposed to iodine, it contains starch. To avoid digestive discomfort, look for starch-free alternatives.