General authentic milk tea consists of three parts: milk, sugar and tea, while some milk tea stores on the market use not fresh milk or milk powder, but creamer, long-term milk tea may cause excessive caffeine intake, obesity and other hazards. 1. Excessive caffeine intake: There are some milk tea on the market with very high caffeine content, which can easily lead to panic and insomnia after drinking. The next day can not concentrate on work, affecting life and learning. 2. Obesity: milk tea belongs to the high-calorie, high-fat as well as high-sugar food, containing a large number of trans fatty acids, long-term milk tea may lead to fat accumulation, thus causing weight gain, obesity and other conditions. Although milk tea tastes better, but it contains sugar, caffeine and other ingredients, it is not recommended that diabetics, lactating women, body overweight people drink, so as not to affect their health.