A few weeks ago on the show, we learned about a brand new medical device that allows users to measure nutritional ketosis with a breathalyzer. Nutritionists say they’ve witnessed the reemergence of the keto diet as a means for weight loss in the past few years. Both during and after that segment aired, we received a lot of questions about the keto diet, as well as some concern that this may be an unhealthy choice for some people. In this conversation, we dive into what the research says about keto with several nutritionists.