Alglucanase deficiency, is one of the clinical classifications belonging to disaccharidase deficiency. This disease, also known as disaccharide intolerance, refers to a variety of congenital or acquired diseases that make the small intestinal mucosa brush border disaccharidase deficiency, so that the digestion and absorption of disaccharides are impaired, and a series of symptoms and signs occur when eating food containing disaccharides. Breakfast avoid eating too much protein, fat, meat, because of the acidic food easy to cause poor mental health during the day. For example: ham and egg sandwiches, dumplings, fried buns, burritos, too sweet bread, are not suitable. Breakfast must be eaten, can take more grains and cereals food did not eat breakfast people, will appear physical incompetence, decrepitude and brain power is not concentrated, easy to cause middle-aged dementia, premature aging disease. As long as you get up 30 minutes early there will be plenty of time to eat. Especially dieters in the most need to pay attention to the choice of breakfast, breakfast must be full and good, because the stomach and intestines in more than 10 hours fasting, the food eaten in will be accepted as a whole (the cause of obesity) easy to cause gastrointestinal ulcers. Should not drink coffee in the morning, easy to cause bone loss, osteoporosis, 2-3 p.m. can drink, adults do not exceed 2 cups a week, or just drink black coffee without sugar and creamer, less likely to affect bone loss.