It helps to protect teeth and improve eyesight. The fluoride content of tea leaves is high, and the fluoride content of every 100 grams of dry tea is 10 mg to 15 mg, and 80% of it is water-soluble. If each person drinks 10 grams of tea per day, it can absorb 1 mg to 1.5 mg of water-soluble fluoride, and tea is an alkaline beverage, which can inhibit the reduction of calcium in the human body, which is beneficial for preventing dental caries, protecting teeth, and strengthening teeth. of. In the test of "washing the mouth with tea after drinking" among primary school students, the dental caries rate can be reduced by 80%. Among the cataract patients, 28.6% had the habit of drinking tea; 71.4% had no habit of drinking tea. This is because the vitamin C and other ingredients in tea can reduce the turbidity of the eye lens, and drinking tea regularly has a positive effect on reducing eye diseases, protecting eyes and improving eyesight.
