Can drink fruit juice before going to bed, but the majority of the population is generally not recommended to drink fruit juice before going to bed. Generally speaking, fruit juice is relatively high in sugar, drink fruit juice before bedtime, if you do not pay attention to oral hygiene, will easily lead to an increase in the prevalence of dental caries. At the same time, the intake of fruit juice may lead to increased urination after frequent night, thus affecting the quality of sleep at night. Fruit juice is essentially different from fruit, because fruit juice in the process of making the loss of some of the fiber and vitamins in the fruit, while the increase in free sugar. Instead of drinking fruit juice, it is better to eat some fruit directly in moderation. Daily diet must ensure food diversity, diet nutritional balance, do not favor picky food, so as not to lead to the body lack of nutrients.