Unhealthy foods include foods high in oil, fat and sugar, smoked and barbecued foods, pickled foods, and foods containing trans fatty acids. 1. Excessive consumption of high-oil, high-sugar, high-fat foods, such as: fatty meat, lard, pastries, fast food, candy, etc., will lead to the occurrence of obesity, but also make the human body elevated blood lipids, leading to atherosclerosis, aggravate the risk of cardiovascular and cerebrovascular diseases; too much obesity may also lead to insulin resistance, leading to the occurrence of diabetes. 2. Smoking, barbecue food, such as: bacon, barbecue sausage, grilled lamb kebabs, grilled fish and other food, in the process of smoking and grilling will produce carcinogenic substances on the body: benzopyrene or nitrosamines, long-term consumption, may lead to malignant neoplastic diseases. 3. A variety of pickled foods, such as: pickles, salted fish, pickles, etc., because of its pickling process requires the use of a large amount of salt, so in the intake of these foods, it will make the body intake of excessive salt, resulting in water and sodium retention in the body, resulting in edema, but also to increase the risk of elevated blood pressure. 4. A variety of margarine, butter, cheese, contains a large number of trans fatty acids, regular consumption will cause disorders of lipid metabolism in the human body, so that blood lipids rise, aggravate the risk of cardiovascular and cerebrovascular diseases. Usually eat a light diet, eat more vegetables, eat fruits and supplemental high-quality protein food, coarse and fine with a balanced diet, in order to make the body more healthy.