The common chocolates on the market can be roughly divided into two types, one is ordinary chocolate, i.e. cocoa products containing a large amount of milk and sugar added substances, and the other is dark chocolate, i.e. cocoa products containing lower sugar and higher cocoa content. Moderate consumption of chocolate has certain benefits for the body, such as replenishing energy, relieving fatigue and improving mood. However, excessive or long-term consumption may produce certain bad effects, such as malnutrition, obesity, etc. I. Benefits: 1, supplemental energy: no matter what kind of chocolate, contain high calories, for hypoglycemic patients, long-distance travelers, pregnant women before delivery, etc., can help quickly replenish energy and relieve hunger; 2, relieve fatigue: chocolate contains theobromine, caffeine and other substances, can help improve the excitability of the nervous system, moderate consumption for the relief of fatigue; 3, improve Mood: chocolate contains theobromine, phenylethylamine, arachidonic ethanolamine, caffeine and other biochemicals, can participate in the physiological activities of the brain, to a certain extent, stimulate the brain to produce dopamine, which can help improve bad mood. In addition, sweets themselves can also help relieve anxiety, depression and other emotions; 4, other: chocolate also contains polyphenols, with a certain antioxidant effect, moderate consumption is beneficial to the cardiovascular system. In addition, dark chocolate contains a certain amount of fiber, which helps gastrointestinal motility. Second, the bad: 1, malnutrition: excessive intake of chocolate before meals, but also increase the sense of satiety, reduce appetite, in the long run will lead to nutrient deficiency, and in serious cases may affect the gastrointestinal tract digestive function; 2, obesity: the fat content of chocolate is relatively high, while other nutrients are low, a large number of consumption will increase the risk of obesity, while increasing the incidence of hyperlipidemia; 3, dental caries. In order to increase the taste, white sugar is added in most chocolates, especially ordinary chocolates, which contain a lot of sugar and may increase the risk of dental caries after children consume too much; 4, gastrointestinal burden: because ordinary chocolates contain a lot of sugar and fat, while dark chocolates are rich in fiber, therefore, no matter which kind of chocolates, it is easy to increase the gastrointestinal burden after eating a lot; 5, other. Due to the presence of certain neuroexcitatory substances, some sensitive people may experience reduced sleep quality and insomnia after consumption. Moreover, no matter what kind of chocolate, all contain a certain amount of sugar, so patients with high blood sugar, diabetes and other patients are not recommended to eat. In addition, some chocolate manufacturers replace cocoa butter with cocoa butter substitutes to increase aesthetic appearance, reduce costs and prolong retention, but cocoa butter substitutes are artificial hard fats and may contain trans fatty acids, which may have adverse effects on the body. Therefore, if you want to eat chocolate, it is recommended to choose the cocoa component, while it is recommended to eat in moderation.