The flowers and fruits, especially the leaves of golden flower tea contain germanium, selenium, manganese, zinc and other trace elements, and germanium and selenium content is high. Germanium has very high physiological activity, which can stimulate the body to produce anti-tumor factor, so as to phagocytose and kill cancer cells, inhibit the growth and proliferation of cancer cells, improve the immune function of the body, and play a role in preventing and fighting cancer. The antioxidant effect of selenium can eliminate harmful free radicals in the human body, reduce the oxidative damage of human cells and cell membrane components, anti-aging, protect the heart and cell membranes, reduce cholesterol, improve the body's immune function and self-protection ability, so as to prolong the life span of human beings. Modern pharmacological research has proved that nitrosamine is a strong carcinogen, which is one of the causes of cancer in stomach, esophagus, throat, nose and liver. Golden Flower Tea can reduce the content of nitrosamines in the stomach, stop or reduce the synthesis of nitrosamines, and thus can also play a role in cancer prevention and anti-cancer.