In the past, the slogan of healthy eating was "five fruits and vegetables a day", and the general cognition was that eating fruits and vegetables for five minutes a day would reach the standard recommended goal. However, a recent study in 12 years pointed out that eating at least 7 servings of fruits and vegetables every day would reduce the mortality rate by 42%. In addition, canned or frozen fruits increased the mortality rate by 17%, indicating the necessity of intake of fresh fruits and vegetables.

The intake of fruits and vegetables is an important dietary principle to keep healthy. 7~ 10 servings of fruits and vegetables every day to reduce the mortality rate.

According to the British "Telegraph" report, the World Health Organization (WHO) put forward a nutritional guide of "five kinds of fruits and vegetables every day" in 1990, suggesting that people should eat more than 400g of fresh fruits and vegetables every day to reduce heart disease, stroke, type 2 diabetes and obesity.

Therefore, from 200 1 to 20 13 years, the University of London made a long-term survey on the eating habits of 65,000 people. Eating 1 ~ 3 servings of fresh fruits and vegetables every day can reduce the death rate 14% and reduce the intake by 3~5 servings every day compared with people who don't eat fruits and vegetables at all. The intake of more than 7 servings can reduce the mortality rate by 42%, indicating that the greater the intake of fruits and vegetables, the higher the health benefits.