As a bariatric physician I know that hunger is the number one reason people tend to overeat. HungerBlock is a natural appetite suppressant which has been used successfully by many bariatric doctors around the country for more than ten years. I, personally, have recommended it to my patients with proven results. -Dr. Sass How to use HungerBlock: You may take HungerBlock up to 2 times daily, in addition to the small meals eaten every 2-3 hours throughout the day, i.e.; Smart cookies. You must take it about 30 minutes before you generally get hungry. For instance, if you normally get hungry around 4 pm, you should take the HungerBlock at 3:30pm. For best results, take it prior to feeling hungry . HungerBlock, being a natural supplement, enables you to take it in the evening, as it will not interfere with your sleep. If you are a person who tends to snack after dinner; a tablet immediately after dinner will help to prevent that behavior.