Fact: You can only purge up to 80% of calories consumed. Tip: Avoid high caloric binges, instead eat things with a greater mass and less calories. Fruits and veggies are always a good choice. Fact: Carbohydrate digestion starts in your mouth. Our salivary glands secrete amylase, which is a digestive enzyme that begins the break down of carbs. Tip: Avoid eating carbohydrates at the beginning of the meal, because you'll absorb more calories. Save the carbs for desert. Fact: Fat is digested in the small intestines and therefore you feel fuller after eating a high-fat meal. Tip: Eat the fat first because it takes a long time to digest, therefore you'll absord less calories than eating carbs first. Beware, fat has twice as many kcals as carbs and proteins. Fact: Laxatives do not affect calorie absorbtion. Most food and calories are digested and absorbed in the small intestines and laxatives only affect the large intestines. Yes, you'll lose weight, but the weight lost is from water and fecal matter. Tip: Only use laxatives after a large meal that you did not purge afterwards, this way you'll see the real amount of weight gained instead of the fecal matter gained.