Eating too many melon seeds will consume a lot of saliva and gastric juice, which will easily cause dry mouth. With eating melon seeds, air will also enter the stomach, causing indigestion such as abdominal distension and abdominal pain. Melon seeds belong to roasted seeds and nuts. Eating too much is easy to get angry and suffer from oral ulcers, aphtha and other diseases. Repeated friction between melon seeds and tongue can easily cause tongue pain and blistering. Moreover, some melon seeds contain spices and safrole, and excessive intake may cause liver disease. In addition, patients with stomach disease, liver disease, abnormal bile function and hyperlipidemia should not eat melon seeds, which will lead to the aggravation of the disease. Melon seed is a kind of nut, which is rich in fat-soluble vitamins and high in fat and protein. Therefore, eating more melon seeds will increase fat intake, which is definitely not conducive to weight control for people with hyperlipidemia and overweight. In addition, when eating melon seeds, the melon seeds are hard and easy to scratch the oral mucosa, causing the so-called excessive internal heat. Melon seeds contain a lot of fatty acids, which can also cause inflammation of the body and swelling of the tongue. When eating, you must pay attention to controlling the amount and supplementing water. Don't eat too much or too fast at once. Adults generally recommend eating nuts 1 2-3 times a week. If the amount of melon seeds is about 50g each time, the elderly should eat 1-2 times a week 1, and it is enough to eat a handful of melon seeds each time.