In life, people often hear that red wine has the effect of beauty, coffee has the effect of preventing cancer, and tea has the effect of antioxidation. Are these true? Which is the best health care effect: red wine, coffee and tea? Let's introduce the health effects of red wine, coffee and tea.
red wine
Can red wine improve beauty? No!
The argument that red wine can beautify and beautify mainly stems from the fact that red wine contains resveratrol, which has a good antioxidant effect and is beneficial to the skin and cardiovascular system. However, these effects mainly stem from animal experiments. No positive results have been obtained in population experiments, and the content of resveratrol in red wine is very small, which can not play an effective beauty and beautifying effect.
The content of resveratrol in 500 ml red wine is about 5 mg. If you want to achieve the effect of beauty, people weighing about 60kg need to consume 1344 mg of resveratrol every day.
Can red wine protect blood vessels? No!
The argument that red wine can protect blood vessels also comes from the fact that red wine contains resveratrol, because the content of resveratrol in red wine is too small to effectively protect blood vessels.
Red wine helps sleep? No!
The argument that red wine can help sleep is that fermented red wine contains melatonin that can help sleep, but the content of each milliliter of red wine is only 1 ~ 2 nanograms. If you want to help sleep with melatonin, you need about 60000 nanograms of melatonin. The content of red wine is also very small, which can not effectively help sleep.
Coffee
Can coffee reduce the risk of type 2 diabetes? really
After us experiments, the risk of type 2 diabetes is reduced by 42% when drinking 2~3 cups (about 300~450 ml) a day. Coffee contains caffeine, caffeic acid and caffeic alcohol. They belong to the bioactive substances of polyphenols, which can improve the sensitivity of human insulin and help alleviate type 2 diabetes.
Can coffee reduce the risk of Parkinson's disease? really
Verified by the American Parkinson's society, polyphenols in coffee can help stabilize abnormally excited nerves, help the body metabolism and effectively reduce the risk of Parkinson's disease.
Can coffee resist oxidation? really
Because coffee contains polyphenols, which can help clear free radicals in the body, it can not only resist oxidation, but also prevent cancer. Experimental studies have shown that people who often drink coffee have a 26% lower risk of colon cancer than those who don't drink coffee, which can reduce the risk of colorectal cancer.
tea
Can tea resist oxidation? really
Tea contains tea polyphenols, which have antioxidant function, can remove free radicals, fight cancer and prevent cancer.
Catechins in tea polyphenols can help prevent stroke, cardiovascular disease, and help control blood sugar levels in patients with type 2 diabetes.
It is advisable to drink less than 15 grams of tea every day. Remember not to drink too much, which is easy to affect the absorption of gastrointestinal tract and other nutrients.