If the traditional 5-6 meals per day diet is not helping you lose weight, you must try the one meal a day diet (OMAD diet). This intermittent fasting is an extended form of the 8-hour diet. You will fast for 23 hours, and have an hour to eat healthy without restrictions. Scientists at the University of California studied the effect of fasting on humans and found that people who fast have low cholesterol and blood sugar levels, improved gut microbiota, and active metabolism