What are the advantages of coffee? which kind of coffee is more affordable?

Delicious coffee is a refreshing drink, and a new study has found that drinking a few cups of coffee can prevent gallstones. According to the latest issue of the Journal of the American Medical Association, researchers at Harvard University have found that men who drink two or three cups of coffee are 40% less likely to get gallstones than those who do not drink coffee, and if they drink more than four cups of coffee a day, the incidence of gallstones has dropped to 45%. However, decaffeinated coffee does not have this effect. Only caffeinated coffee can stimulate gallbladder contraction and reduce the cholesterol in which bile content is easy to form gallstones. Other drinks such as tea and cola, which also contain caffeine, cannot achieve the same effect because their caffeine content is lower than that of coffee.

Antioxidant and cardioprotective function of coffee

In addition to being refreshing, coffee contains polyphenols that not only have antioxidant effects, but also protect cardiovascular functions. At the recent symposium on food chemistry at the annual meeting of the American Chemical Society, there is new scientific evidence that coffee contains powerful antioxidants that protect the heart and blood vessels. The study was conducted by University of Scranton, Pennsylvania, USA. These polyphenols, sometimes known as yellow stalk compounds (flavonids), are powerful antioxidants that fight oxidation and blood coagulation.

Coffee and prevention of radiation injury

Radiation injury has become a prominent pollution and harm at present. Especially the radiation of household appliances: such as people who operate telephones for a long time, microwave ovens, televisions at home, and so on. Radiation, especially for pregnant women, has affected the health of the next generation. Reports in this area are not uncommon. Indian scientists have found that coffee protects experimental mice from radiation and may have the same effect on humans. Researchers at the Barba Atomic Research Center in India found that 70 per cent of caffeine-injected mice survived 25 days after receiving generally lethal doses of radiation, while all of the uninjected mice died. Caybilico, who led the study, said the findings may also apply to humans. "the study does show that coffee may help prevent harm," he said.

Will coffee cause calcium loss?

In recent years, as Chinese people pay more and more attention to the problem of calcium loss and osteoporosis, they also have considerable doubts about coffee. as for the relationship between caffeine intake and osteoporosis, it is still under continuous research. at present, there is no direct evidence that caffeine can lead to osteoporosis, but some studies have shown that caffeine increases calcium excretion. Therefore, it is suggested that coffee lovers should eat more high-calcium foods to supplement calcium, such as preparing cheese slices or cheesecake with coffee, which can not only supplement calcium, but also make the coffee more delicious.