Antioxidants

Tea is the best beverage for middle-aged and elderly people. Scientific analysis has shown that tea contains proteins, fats, over 10 types of vitamins, as well as nearly 300 components such as polyphenols, caffeine, and lipopolysaccharides, which can regulate physiological functions and play a variety of health-preserving and pharmacological roles. What are the greatest benefits of drinking tea? 1. Improves Muscle Endurance. There is an antioxidant in tea called "catechins," which can increase the body's ability to burn fat, improve muscle endurance, help fight fatigue, and increase the duration of physical exercise. Regular consumption of green tea shows the most significant effects. 2. Fights Ultraviolet Radiation. Tea polyphenols are water-soluble substances. Washing your face with tea water can remove facial grease, tighten pores, and have disinfecting, sterilizing, and anti-aging effects on the skin. It also helps reduce damage from ultraviolet rays in sunlight, acting as a natural "sunscreen." 3. Maintains Body Shape. The caffeine in tea can promote the secretion of gastric juice, aid digestion, and enhance the body’s ability to break down fat. Regular tea consumption can reduce waist circumference, lower body mass index (BMI), and thus help prevent diabetes and cardiovascular diseases. 4. Protects Against Radiation. Tea polyphenols…

Green tea is the most diverse category of tea in China, produced in many regions. Examples include Longjing and Anji White Tea from Zhejiang, Guyu Purple Bud from Huzhou; Biluochun and Yangxian Snow Bud from Jiangsu; Huangshan Maofeng and Taiping Houkui from Anhui, among others. Due to its long-standing tradition, nearly every tea-producing region in the country has its own renowned high-quality green tea. The production of green tea does not involve fermentation, which means that it retains more of its original nutrients, thus having prominent health benefits. However, green tea also has a stronger stimulating effect on the human body, and people who are prone to insomnia or have weak digestive systems should drink less. Which Kinds of Green Tea Have a Stronger Flavor? Longjing: The taste is fresh and mellow, with an elegant aroma. The tea liquor is bright green and clear, and the leaves at the bottom are delicate and intact. Anji White Tea: The taste is light and refreshing, leaving a lingering fragrance in the mouth and a sweet aftertaste. The aroma is fragrant and lasts for a long time. The leaves at the bottom are bright green and the buds can be clearly distinguished. Lushan…

Tea is one of the world's three major beverages. In addition to its fresh and fragrant taste, the rich substances it contains are also one of the reasons people enjoy drinking tea. As is well known, tea is rich in polyphenols. Polyphenols are antioxidants with excellent antioxidant functions that can eliminate harmful free radicals, fight aging, resist radiation, and have antibacterial properties. But does drinking tea regularly really slow down the process of brain aging? Chinese scholars provide the answer. Addressing existing issues, they conducted extensive data analysis to arrive at more reliable conclusions. On November 21, 2023, a research paper titled "Tea consumption and attenuation of biological aging: A longitudinal analysis from two cohort studies" by Professor Zhao Xing's team from the School of Public Health, West China Hospital, Sichuan University was published online in the prestigious international journal "The Lancet Regional Health-Western Pacific" (IF=7.1). The results show that regularly drinking tea can slow down the aging process, and drinking about 3 cups of tea or 6-8 grams of tea leaves per day may provide the most significant anti-aging effects. In this study, there were 13,929 participants, including 7,931 participants aged 30-79 from the China Multi-Ethnic Cohort (CMEC) and…

Fengqing Yunnan black tea is a type of traditional Chinese black tea produced in Fengqing County, Lincang City, Yunnan Province. This region is located in the southern part of the Yunnan plateau, with a mild climate, abundant rainfall, and fertile soil, which are ideal for tea cultivation. Due to its unique growing environment and processing methods, Fengqing Yunnan black tea offers several benefits and effects: The Benefits and Effects of Fengqing Yunnan Black Tea 1. Stimulates Mental Alertness: Fengqing Yunnan black tea contains caffeine, which can stimulate the central nervous system, increasing alertness and focus, and enhancing cognitive reaction speed. 2. Aids Digestion: This tea contains various tannins that have astringent properties, which can alleviate discomfort in the gastrointestinal tract, promote the secretion of digestive juices, increase appetite, and assist in the digestion and absorption of food. 3. Reduces Fat and Aids Weight Loss: The polyphenols in Fengqing Yunnan black tea help inhibit fat synthesis and absorption, promote fat breakdown and burning, and have some effect in reducing body fat and aiding weight loss. 4. Antioxidant and Anti-Aging: This tea is rich in antioxidants that can eliminate free radicals, delay cellular aging, improve skin elasticity and luster, and reduce the…

In 2022, a study involving half a million people published in the Annals of Internal Medicine showed that, compared to those who don't drink tea, drinking 2 to 3 cups daily is associated with a 13% lower risk of all-cause mortality. It Helps with Antioxidation Tea contains a high amount of polyphenols, which have antioxidant properties and can eliminate excess free radicals in the body. Studies have found that the antioxidant effect of tea polyphenols is stronger than that of vitamin E. Reduces Risk of Cardiovascular Disease A study published by Professor Gu Dongfeng, Academician of the Chinese Academy of Sciences and former Vice President of Fuwai Hospital, Chinese Academy of Medical Sciences, in the European Journal of Preventive Cardiology showed: Regular tea drinking can reduce the risk of cardiovascular events and all-cause mortality, with more significant health benefits for those who maintain a long-term habit of drinking tea, men, and those who drink green tea. Reduces Risk of Diabetes Research has found: drinking green tea daily can prevent type 2 diabetes; individuals with diabetes who regularly drink green tea can significantly lower their risk of all-cause mortality. Compared to those who never drink tea, daily tea drinkers have an…

Pu'er ripened tea has no expiration date and can be stored long-term. However, this does not mean that ripened Pu'er can be stored indefinitely; it is generally suitable for drinking after being stored for three to five years. In comparison, raw Pu'er tea requires around ten years of storage to reach its optimal drinking period. Ripened Pu'er has no expiration date—Pu'er ripened tea can be stored long-term without an expiration date, as long as it is kept under standard storage conditions, Pu'er tea can continue to be stored. How Long is the Expiration Date for Pu'er Ripened Tea? Yunnan Pu'er tea tends to improve with age, and its shelf life can extend from 10 to 20 years. Similarly, aged Wuyi rock tea often has a richer aroma and more robust flavor. Hunan's dark tea, Hubei's Fu brick tea, Guangxi's Liubao tea, and others will not spoil but rather improve in quality if stored properly. Generally, however, most teas are best when fresh. For example, green tea typically has a shelf life of about one year at room temperature. However, factors such as temperature, light, and humidity significantly impact the quality of tea. If stored correctly by mitigating or eliminating these…

China is the birthplace of tea and the origin of its culture. Since the creation of the first cup of tea over 4,700 years ago, tea has become the most commonly consumed beverage globally after water. Both ancient texts and modern medical research suggest that drinking tea is beneficial to health. Although all teas originate from the same plant—the tea plant—different oxidation levels determine their variety. For example, green tea is an unfermented type, meaning it contains the richest concentration of polyphenolic compounds known as catechins, which are powerful antioxidants capable of neutralizing or preventing oxidative stress caused by oxygen free radicals in the body, thereby preventing damage to cells or DNA. As a result, green tea has anti-aging properties. However, a recent study published in Aging by researchers from the University of Jena in Germany, ETH Zurich in Switzerland, and Huazhong Agricultural University has reached a revolutionary conclusion: rather than inhibiting oxidative stress, the catechins in green tea actually promote it in the short term. Green tea enthusiasts, don't panic just yet—let's delve into what this means. Clinical trials and epidemiological studies have previously shown that drinking green tea is beneficial for health, including lowering blood pressure, blood sugar,…

The ancient tree spring tea originates from old tea trees that have withstood the test of time, harvested in the spring season. It boasts several unique qualities: its aroma is rich and lingers in one's heart; its taste is mellow and intoxicating. This tea is not only nutritionally rich but also contains antioxidants that bring numerous benefits to both body and mind. Savoring a cup of ancient tree spring tea feels like an intimate conversation with nature, experiencing the sedimentation of time and the vitality of spring. Ancient tree spring tea refers to the new spring tea picked from old tea trees. It has the following characteristics and benefits: Characteristics: 1. The leaves are fresh green, and the tea brews into a clear infusion with floral and fruity fragrances. 2. The mouthfeel is delicate and smooth, with a sweet and full-bodied taste. 3. The liquor color is bright, the base is mild, and it is not overly bitter or astringent. 4. The long growth period of the tea trees results in high-quality leaves that are rich in nutrients. Benefits: 1. Ancient tree spring tea is rich in tea polyphenols, which have excellent beautifying and nourishing effects on the skin. 2.…

We often drink tea, but are you aware of these lesser-known facts? ▼ ▼A merchant from New York, Thomas Sullivan, began distributing tea in small silk bags to his customers, intending for them to pour the tea out to brew. However, the customers misunderstood... ▼ Comparison of antioxidants in tea ▼ Sugar content in a cup of tea ▼ Tea has been transformed worldwide ▼ All tea leaves come from one species – the tea plant. Different varieties of tea plants from different origins, processed in various ways, become the six types of tea that we see.

Cancer is a leading cause of the global disease burden, with mortality second only to cardiovascular diseases. In 2019, there were 23.6 million cases and 10 million deaths from various cancers across 204 countries and regions. The global cancer burden is expected to continue increasing, with projections estimating 28.4 million cancer cases by 2040. Diet is believed to be an effective approach for preventing certain cancers. Catechins are biologically active polyphenol components found in fresh tea leaves or green tea, and they are the primary contributors to the health benefits of tea. Fresh tea leaves typically contain four phenotypic catechins: (-)-epicatechin (EC), (-)-epigallocatechin (EGC), (-)-epicatechin gallate (ECG), and (-)-epigallocatechin gallate (EGCG). EGCG is the most abundant catechin in fresh tea leaves, accounting for over 40% of total catechin content. Many studies have shown that tea catechins possess anticancer properties. However, the impact of tea catechins and tea consumption on cancer risk remains inconclusive and controversial. Epidemiological and in vivo studies suggest that tea catechins exhibit anticancer effects against various types of cancer, including gynecological cancers, digestive tract cancers, brain gliomas, hepatobiliary cancers, and lung cancer. Catechins inhibit the proliferation and metastasis of cancer cells, act as antioxidants to scavenge free…

The primary differences in nutritional components between cold-brewed and hot-brewed tea lie in the rate and total amount of certain compounds dissolved from the tea leaves, as follows: Antioxidant activity: Cold-brewed tea better preserves beneficial substances in the tea, such as polyphenols, due to reduced damage to the tea leaf cell structure by high temperatures. Some studies show that cold-brewed tea has stronger antioxidant activity than hot-brewed tea. Caffeine content: The dissolution of caffeine is significantly influenced by temperature; it dissolves quickly at high temperatures but very slowly below 60°C. Therefore, cold-brewed tea typically contains less caffeine, making it suitable for those sensitive to caffeine or concerned about its impact on sleep. Polyphenol dissolution: Polyphenols still dissolve relatively well at lower temperatures. Due to the longer brewing time, polyphenols and other beneficial substances in the tea leaves dissolve in cold-brewed tea. However, the relative caffeine content is greatly reduced, while the relative content of polyphenols and theanine increases, resulting in a tea with virtually no bitterness but a prominent aroma and a generally sweet taste. Taste and color: Compared to hot-brewed tea, cold-brewed tea usually has a sweeter taste and a lighter color. This is mainly because high temperatures easily…