The countdown to the 2023 college entrance examination has entered, and high school seniors who are fully preparing for the exam are making a final sprint. At this point, many parents may make candidates take a large amount of health supplements and eat large meals to supplement nutrition due to excessive stress on their children... Little do they know that doing so will actually affect their children's physical health. Wrong practice 1: Superstition of health products and making children take a large amount of college entrance exams is imminent. Many parents of candidates will choose to purchase brain tonifying and calming health products for their children to help them take exams. Yan Danfeng, director of the Mental Health Education Center of the Student Affairs Department of Shanxi Medical University, said that parents of candidates should not be overly superstitious about the effects of "brain building products" on intelligence and exam results. As long as one is not picky or partial to food, and eats three meals a day in a balanced manner, the brain's daily nutritional needs can be met, "said Yan Danfeng. A reporter from Science and Technology Daily found on many shopping platforms that some health products claiming to "enhance students' memory", "enhance their focus", and "anti fatigue oral liquid" are very popular. Cai Honglin, Director of the Nutrition Department of Wuhan Union Medical College Hospital in Hubei Province, believes that popular brain tonifying products actually serve more as a placebo for parents and candidates. If the intake level of any nutrient exceeds the maximum tolerable intake by the human body, the likelihood of its toxic side effects will increase, at least increasing the burden on the child's gastrointestinal tract and potentially leading to abnormal performance during exams. Wrong method 2: Cooking novel ingredients and supplementing nutrition with big fish and meat. Before the exam, many parents worry about their children's hard work in learning and supplement nutrition for them. But Yan Danfeng pointed out that generally, one week before the exam, candidates should not arbitrarily change their usual dietary habits, should not excessively supplement nutrition with meat and fish, and should not consume novel ingredients that candidates have not eaten before. She explained that on the one hand, because new food has not been eaten on a regular basis, it may cause allergies, gastrointestinal discomfort and other problems, and may also disrupt the child's original balance, which may actually have adverse effects on the body. Li Yanling, Director of the Nutrition Department of the First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, once stated in an interview with the media that big fish and big meat are rich in high protein and fat, and children's intestines and stomach may not be accustomed to it. Failure to handle it properly can actually lead to diarrhea, loss of appetite, and other symptoms in children. Yan Danfeng reminds students to eat less foods that are prone to gas and acid production before the exam, such as leeks, sweet potatoes, carbonated drinks, etc. Diet should pay attention to reducing salt and oil, and try to eat less or avoid cold drinks, cold dishes, fried foods, diuretic foods, etc. Eating cold drinks excessively may cause digestive and absorption disorders in the gastrointestinal tract. Fried foods can increase the burden of digestion, leading to a corresponding decrease in blood supply to the brain and affecting its work efficiency, "said Yan Danfeng. She suggests that children can eat fruits such as watermelons, bananas, etc. between meals, especially bananas, which have the function of stabilizing emotions. During the exam phase, the child's brain's demand for oxygen and certain nutrients increases compared to usual. Parents can increase their children's intake of protein, phospholipids, carbohydrates, vitamin A, vitamin C, B vitamins, iron, etc. in moderation. Mistake 3: Buying caffeinated functional drinks to refresh children during the scorching summer of the college entrance examination. Long periods of studying and preparing for the exam inevitably make candidates feel tired, and many parents will give candidates