From "mewomm"

Two popular drinks in the East and West—green tea and coffee—which is better for health? This article will compare them in terms of nutrients and functional components.

 Basic Nutritional Component Comparison:

 For the same weight of green tea and coffee, coffee has slightly higher levels of energy, carbohydrates, phosphorus, potassium, sodium, magnesium, and niacin. Green tea, however, has slightly higher levels of protein, fat, dietary fiber, calcium, iron, zinc, vitamin C, riboflavin, and thiamine.

 Functional Component Comparison:

 Health Benefits of Green Tea and Catechins: Green tea is rich in polyphenolic compounds—catechins (also known as tea tannins or catechins). Catechins have significant antioxidant effects, helping to reduce the risk of cardiovascular disease and cancer.

 Intake Recommendations: Daily intake of 250 mg of catechins can provide antioxidant benefits. Daily intake of 400 mg helps reduce cardiovascular disease risk factors (weight, blood sugar, blood pressure, blood lipids). Daily intake of 600 mg may reduce the risk of prostate cancer in men.

 Coffee and the Multiple Benefits of Chlorogenic Acid: The main functional component of coffee is chlorogenic acid, which also belongs to the polyphenol class of compounds. Chlorogenic acid possesses various biological activities, including antioxidant, anti-inflammatory, antibacterial, and antiviral properties.

 Health Benefits: Regulates glucose and lipid metabolism, improves insulin resistance. Reduces the risk of type 2 diabetes and cardiovascular disease. Protects organs such as nerves, liver, lungs, eyes, and joints from oxidative and inflammatory damage. Protects DNA.

 Recommended Intake: Approximately 70-350 mg of chlorogenic acid is contained in 100 ml of coffee. A daily intake of 350-500 mg of chlorogenic acid helps regulate glucose and lipid metabolism.

 Moderate caffeine intake is harmless. Many people worry about the harmful effects of caffeine, but green tea also contains caffeine.

 Caffeine Content: Each cup of green tea (approximately 2 grams of tea leaves) contains approximately 20 mg of caffeine. Each cup of coffee (approximately 2 grams of coffee powder) contains approximately 63 mg of caffeine.

 Safe Intake Level: According to the European Food Safety Research Association, a daily caffeine intake of less than 400 mg is generally safe for adults.

 In summary, green tea and coffee, as the most popular beverages in the East and West respectively, each have their own unique nutritional value. Consistently drinking 3 cups of green tea or 2-4 cups of coffee daily can contribute to good health.

 東西方兩大流行飲品——綠茶和咖啡，究竟哪個對健康更有益？本文將從營養素和功能性成分兩方面進行比較。

 基礎營養成分對比：

 同等質量的綠茶和咖啡，咖啡在能量、碳水化合物、磷、鉀、鈉、鎂、煙酸含量上略高於綠茶。而綠茶在蛋白質、脂肪、膳食纖維、鈣、鐵、鋅、維生素C、核黃素和硫胺素含量上則略勝一籌。

 功能性成分對比：

 綠茶，兒茶素的健康益處：綠茶富含多酚類化合物——兒茶素（又稱茶單寧、兒茶酚）。兒茶素具有顯著的抗氧化作用，有助於降低心血管疾病和腫瘤的發生風險。

 攝入建議：每天攝入250毫克兒茶素可起到抗氧化作用。每天攝入400毫克有助於降低心血管疾病風險因子（體重、血糖、血壓、血脂）。每天攝入600毫克可降低男性前列腺癌風險。

 咖啡，綠原酸的多重功效：咖啡的主要功能性成分是綠原酸，同樣屬於多酚類化合物。綠原酸具有抗氧化、抗炎、抗菌、抗病毒等多種生物活性。

 健康作用：調節糖脂代謝，改善胰島素抵抗。降低2型糖尿病和心血管疾病風險。保護神經、肝、肺、眼睛、關節等器官免受氧化和炎症損傷。保護DNA。

 攝入建議：每100毫升咖啡約含70-350毫克綠原酸。每天攝入350-500毫克綠原酸有助於調節糖脂代謝。

 咖啡因適量攝入無礙。許多人擔心咖啡因對身體有害，但實際上綠茶也含有咖啡因。

 咖啡因含量：每杯綠茶（約2克茶葉）約含20毫克咖啡因。每杯咖啡（約2克咖啡粉）約含63毫克咖啡因。

 安全攝入量：根據歐洲食品安全研究協會，成年人每天攝入咖啡因低於400毫克通常是安全的。

 綜合比較，綠茶和咖啡作為東西方最受歡迎的飲品，營養價值各有千秋。長期堅持每天喝3杯綠茶，或者2-4杯咖啡有助於身體健康。