綠茶 Green Tea Extract 對減肥有甚麼好處?

近年很多減肥丸 / 瘦身產品 也會加入綠茶精華 (Green Tea Extract) 成份，是因為綠茶對減肥很有幫助，但因為我們不能以綠茶充當白開水飲用，所以便出現了綠茶精華 (Green Tea Extract) 來代替飲用大量綠茶。
綠茶中的芳香族化合物能溶解脂肪，防止脂肪積存體內，另外綠茶中的多酚可以減緩和抑制澱粉消化吸收，它亦能抑制腸胃中蔗糖轉換成酵素的活性,阻止糖類吸收，此外綠茶也可增加體液、營養和熱量的新陳代謝，強化微血管循環，減低脂肪沈積體內‧

一項研究指出,美國和瑞士科學家對減肥有利綠茶和閉幕結果被刊登在美國臨床營養JOURNAL泌尿科. During the course of their study, they have found that green tea contains certain compounds that contribute to its weight loss benefit.在學習過程中,他們發現,綠茶含有一些化合物,它有助於減肥有利.

Lead researcher, D. Abdul Dulloo said in a press release that there are only two ways to achieve weight loss – either reduce energy intake or increase energy expenditure.鉛研究員、丁說阿卜杜勒dulloo新聞稿說有兩條途徑達到減肥-要麽減少能量攝入或增加能量消耗. Green tea, it seems, has compounds that can increase the body’s normal metabolism rate, thus giving it its weight loss benefit.綠茶似乎有化合物,可以增加身體的正常代謝率,它的好處是使體重減輕.

At the University of Geneva, where the study was conducted, Dr. Dulloo and his colleagues experimented on ten healthy young men.在日內瓦大學,進行研究,dulloo博士及其同事在10個試點省壯丁. They theorized that the main contributor to green tea’s weight loss benefit is its caffeine content.這些理論的主要貢獻者,綠茶的減肥好處是它的咖啡因含量. To test this hypothesis on green tea’s weight loss benefit, they placed the study’s participants on a typical “Western” diet which is about forty percent fat, thirteen percent protein, and forty-seven percent carbohydrates.這一假說測試綠茶的減肥好處他們把研究的與會者介紹了典型的"西方"飲食中脂肪百分之四十,13%蛋白質,和47%碳水化合物.

Thrice everyday, the researchers measured their subjects’ energy expenditure (the measurement used in determining the number of calories burned in 24 hours) and monitored their respiration quotient to find out how well they utilized their carbohydrates, proteins, and fats.每天三次,研究人員測量了受試者的能源支出(用來測量確定人數卡路里當衆24小時)監視呼吸商數看看他們利用其碳水化合物、蛋白質、脂肪.

When they interpreted the data they collected, they found out that the men receiving regular dosages of green tea extract showed a significant increase in their 24-hour energy expenditure and a reduction in their respiration quotient (which means that more fat is burned, thereby achieving maximum weight loss).當他們把這些資料收集、他們發現,男人定期接受劑量綠茶提取物顯著增加,其24小時能源開支和減少呼吸商數(即多脂肪燃燒從而實現最大體重減輕). On the other hand, those men who were only given caffeine or placebo with every meal showed only minimal increases in their metabolism rates.在另一方面,這些男人只能餐餐與咖啡因或安慰劑顯示其代謝率上升微乎其微.

The scientists construed that the substance catechin polyphenol present in green tea adds to its weight loss benefit.科學家解釋說,多酚物質存在於綠茶兒茶素加重其體重減輕受益. These substances in green tea may alter how the body uses the hormone norepinephrine which is responsible for increasing the metabolism rate, thus leading to weight loss.這些物質在綠茶身體怎麽可能改變用途的腎上腺素荷爾蒙是負責提高代謝率,從而導致體重減輕.

In their conclusion, the scientists inferred that green tea owes its weight loss benefit to the presence of antioxidants and the substance catechin polyphenol.其結論科學家推測綠茶拜利於減肥和抗氧化劑物質含有兒茶素多酚. These substances help increase fat and calorie burning and optimize weight loss.這些物質有助於增加熱量和脂肪燃燒優化體重減輕