Diet and health care in spring: Six unreliable health Legends

Sometimes the more widely a health legend spreads, the further away it is from the truth However, the power of legend lies in how it is distorted and spread! Vitamin C can prevent cold American chemist paulin, who won the Nobel Prize in chemistry in 1954 and the Nobel Peace Prize in 1962, wrote a book called vitamin C and the common cold The main idea in the book is that taking 1000 mg or more of vitamin C every day can prevent colds; vitamin C can resist viruses However, several large-scale experiments have confirmed that although vitamin C can help cold patients reduce symptoms, there is no credible evidence that taking large doses of vitamin C can prevent cold, whether for adults or children It should be noted that taking large doses of vitamin C for a long time may lead to diarrhea, anemia and urinary stones The doctor suggested that the daily intake of vitamin C should not exceed 200 mg Eating before bed is easy to gain weight People often tell girls who want to be slim not to eat before bed The reason is that people's metabolism is slow when they sleep, calories can't be "burned out" by the body, and energy is more easily converted into fat and stored up In fact, the calories you eat at night are no different from those you eat during the day The reason for this misunderstanding is that people often choose biscuits, chips and other snacks before going to bed, which are high calorie foods Ginkgo leaf tea is good for health There are a lot of flavonoids with antioxidant properties in Ginkgo leaf Some experiments have proved that flavonoids can improve the cardiovascular and cerebrovascular function of experimental animals, and have certain anti-tumor effect However, Ginkgo biloba leaves also contain another substance - white fruit acid, which also causes people to eat ginkgo poisoning substances Eating more spinach to supplement iron spinach is similar to other green leafy vegetables in iron content, and spinach is rich in oxalic acid, which on the contrary affects the absorption of iron The source of this legend is a report on the iron content of spinach published by scholar Wolff in 1870 It wasn't until 1937 that people realized that Wolff had misplaced the decimal point However, the content of vitamin A, e and carotene in spinach is relatively high Eating more spinach is indeed beneficial to health The good news for chocolate lovers is that this claim is also a false health myth Acne caused by eating chocolate has not been confirmed by experiments At present, the treatment of acne is based on the control of sebum secretion, the guarantee of smooth hair follicles, the maintenance of skin cleanliness and the control of bacterial infection Many mothers don't dare to drink milk for children with cold because milk produces phlegm A team in Australia recruited volunteers to infect them with rhinovirus, the pathogen of the common cold After 10 days of observation, they did not find any connection between drinking milk and sputum secretion And the subjective understanding of the formation of milk phlegm is that milk will make our saliva become sticky, so it seems that there is phlegm.