I have been using Modius since July I was 341 July 5th and October 5th I am 276. I have been doing vegetarian food almost entirely and been shrinking my eating window to the point now I am eating once a day. I believe that Modius is helping me to keep my metabolism high even with my regular fasting. The only reason I considered giving it 4 stars is that it only allows one person to use the product per day. I would like to share it with family members and potentially use it some in the morning some in the evening. I understand they don't want people wearing it 24/7 but there should be other ways to manage that without shutting the product down so no one can use it.