I have become a fan of 16/8 IF over the past couple months, pretty much every day, except for a couple days at 14 hours fasting and a few days fasting 17 or 18 hours with 1 day at 20 hours fasting. The only issue I have with these studies is they always do alternate day fasting. Is that really how most people do IF? Based on most of the posts, blogs and videos I have seen, it seems that something between 14/10 and 20/4 is more common. The real question is can we assume these studies apply to all forms of fasting, or do they provide zero value for those of us doing 14 to 20 hour fast.