铁观音茶叶含有较高的氨基酸、维生素、矿物质、茶多酚和生物碱，有多种营养和药效成分，具有养生保健的功能。
1、美容减肥抗衰老。安溪铁观音中的锰、铁、氟以及钾、钠含量比，高于其他茶叶，其中以含氟量高名列各茶类之首，对防治龋齿和老年骨骼疏松症效果显著。
2、防癌增智人聪明。安溪铁观音含硒量很高，在六大茶类中居前列。硒能刺激免疫蛋白及抗体抵御患病，抑制癌细胞发生和发展。英国科学家发现，人体大脑体液的酸碱性与智商有关。茶叶是碱性饮料，安溪铁观音碱性显著，因此常饮能调节人体酸碱平衡，提高人的智商。
3、提神益思。安溪铁观音可提神益思，其功能主要在于茶叶中的咖啡碱。咖啡碱具有兴奋中枢神经、增进思维、提高效率的功能。由于安溪铁观音中含有多酚类等化合物，抵消了纯咖啡碱对人体产生的不良影响。
4、抑制心血管疾病。铁观音中含有的茶多酚对人体脂肪代谢有着重要作用，有助于使这种斑状增生受到抑制，使形成血凝黏度增强纤维蛋白原降低，凝血变清，从而抑制动脉粥样硬化。人体胆固醇、三酸甘油脂等含量高，血管内壁脂肪沉积，血管平滑肌细胞增生后形成动脉粥样化斑块等心血管疾病。
5、治疗牙齿过敏。铁观音茶叶抗敏效果比较好。喝完的铁观音茶不要随意丢掉，可以“废物利用”，放在口中尤其是过敏的牙齿部位咀嚼一下。也可以将新鲜的铁观音茶叶直接放入牙齿的敏感部位轻轻咀嚼。用咀嚼铁观音茶叶的方法来治疗牙齿酸痛时，不必选用很高档次的铁观音茶。
英语翻译
Tieguanyin contains high levels of amino acids, vitamins, minerals, tea polyphenols and alkaloids, has a variety of nutrients and medicinal ingredients, and has the function of health preservation.
1. Beauty, weight loss and anti-aging. The ratio of manganese, iron, fluorine, potassium and sodium in Anxi Tieguanyin is higher than other teas. Among them, the high content of fluorine ranks first among all teas, which has a significant effect on preventing dental caries and senile osteoporosis.
2. Anti-cancer and make people smarter. Anxi Tieguanyin contains a high selenium content, which ranks in the forefront of the six major teas. Selenium can stimulate immune proteins and antibodies to resist disease and inhibit the occurrence and development of cancer cells. British scientists have discovered that the acidity and alkalinity of the human brain and body fluids are related to IQ. Tea is an alkaline beverage, Anxi Tieguanyin is significantly alkaline, so regular drinking can adjust the body's acid-base balance and improve people's IQ.
3. Refresh and refresh. Anxi Tieguanyin can refresh your mind, and its function is mainly the caffeine in tea. Caffeine has the functions of stimulating the central nervous system, enhancing thinking and improving efficiency. As Anxi Tieguanyin contains polyphenols and other compounds, it offsets the adverse effects of pure caffeine on the human body.
4. Inhibit cardiovascular disease. The tea polyphenols contained in Tieguanyin play an important role in the body's fat metabolism, which helps to inhibit this plaque hyperplasia, reduce the formation of blood coagulation viscosity and enhance fibrinogen, and the blood coagulation becomes clear, thereby inhibiting atherosclerosis. The human body has high levels of cholesterol and triglycerides, fat deposits on the inner walls of blood vessels, and the proliferation of vascular smooth muscle cells to form atherosclerotic plaques and other cardiovascular diseases.
5. Treat tooth hypersensitivity. Tieguanyin tea has better anti-allergic effect. Don’t throw away Tieguanyin tea after you drank it. It can be used as “waste” and chewed in your mouth, especially on allergic teeth. You can also put fresh Tieguanyin tea leaves directly into the sensitive parts of the teeth and chew gently. When chewing Tieguanyin tea to treat sore teeth, you don't need to choose very high-grade Tieguanyin tea.