快速解答
喝茶會打破斷食嗎?
無糖茶、綠茶和花草茶都可以。打破斷食的是糖、蜂蜜和牛奶
別往杯子裡加的東西
糖很明顯。牛奶就沒那麼明顯了:它含有乳糖和蛋白質,而蛋白質升高胰島素的作用不輸給糖。在一項瑞典研究中,牛奶和乳清引起的血糖上升遠小於白麵包,但乳清釋放的胰島素卻多出 90% 2。往茶裡加一點點只會增加一點;加到像拿鐵那麼多,斷食就結束了。
咖啡因喝多少沒問題?
茶的咖啡因通常比咖啡少,很適合下午喝。對健康的成年人來說,每天不超過 400 毫克咖啡因(約 4 杯 240 毫升的濾掛咖啡)被認為是安全的 3;懷孕和哺乳期間請控制在 200 毫克以下 4,5。花草茶不含咖啡因。
茶也算補充水分
不必擔心含咖啡因的飲料會讓你脫水。對習慣喝咖啡的人來說,每天四杯咖啡的補水效果和同樣分量的水一樣 6。不過手邊還是要準備一些水。
參考文獻
- Holt SH, Miller JC, Petocz P. An insulin index of foods: the insulin demand generated by 1000-kJ portions of common foods. Am J Clin Nutr. 1997;66(5):1264-76. doi.org/10.1093/ajcn/66.5.1264
- Nilsson M, Stenberg M, Frid AH, et al. Glycemia and insulinemia in healthy subjects after lactose-equivalent meals of milk and other food proteins: the role of plasma amino acids and incretins. Am J Clin Nutr. 2004;80(5):1246-53. doi.org/10.1093/ajcn/80.5.1246
- Wikoff D, Welsh BT, Henderson R, et al. Systematic review of the potential adverse effects of caffeine consumption in healthy adults, pregnant women, adolescents, and children. Food Chem Toxicol. 2017;109(Pt 1):585-648. doi.org/10.1016/j.fct.2017.04.002
- ACOG Committee Opinion No. 462: Moderate caffeine consumption during pregnancy. Obstet Gynecol. 2010;116(2 Pt 1):467-468. doi.org/10.1097/AOG.0b013e3181eeb2a1
- EFSA NDA Panel. Scientific Opinion on the safety of caffeine. EFSA J. 2015;13(5):4102. doi.org/10.2903/j.efsa.2015.4102
- Killer SC, Blannin AK, Jeukendrup AE. No evidence of dehydration with moderate daily coffee intake: a counterbalanced cross-over study in a free-living population. PLoS One. 2014;9(1):e84154. doi.org/10.1371/journal.pone.0084154
關於健康
Fasting Tracker 專為一般健康管理設計,並非醫療器材。斷食並不適合每個人:如果你懷孕、有糖尿病、有飲食障礙病史或正在服藥,請先諮詢醫師;進行長時間斷食前也請先諮詢醫師。
