Comparison of Oxalate Content in Foods and Beverages in Taiwan

比較台灣地區食品及飲料草酸的含量

蔡政諭(Jeng-Yu Tsai) ； 黃榮慶(Jong-Khing Huang) ； 吳東霖(Tony T. Wu) ； 李瀛輝(Ying-Huei Lee)

《臺灣泌尿科醫學會雜誌》 16卷3期 (2005/09) Pp. 93-99

摘要

草酸鈣尿路結石在台灣及全世界都是最常見的結石成份。有些研究認爲尿中的草酸只有1至2成是由食物中來的，但有的研究認爲食物中的草酸含量對於尿中的草酸應佔有更重的角色。
在本研究中，我們收集了在台灣地區的食物及飲料，再加以分析其草酸成份。其中有些食物及飲料是本地特有的。我們的結果發現牧草汁及牧草粉，菠菜，杏菜，楊桃，川七，皇宮菜，甘藷葉，苦瓜等均爲富含草酸的食物。
對於草酸結石患者爲預防結石的復發或腎功能不良的患者避免草酸中毒，我們建議病患不宜攝取過多的高草酸食物。

關鍵字

尿路結石 ； 草酸 ； 食品分析

並列摘要

Calcium oxalate is the most-frequently found component of uroliths in Taiwan as well as in the world. Some studies have shown that only 10%～20% of urinary oxalate is derived from food intake, but others have indicated that dietary oxalate has a much higher contribution than previously recognized.
In the present study, we analyzed oxalate contents of foods and beverages that are common in Taiwan. Some of our materials are unique to the Taiwan area. Although most of the materials can be found elsewhere in the world, some are indigenous to this region. The results showed that Chinese Pennisetum powder (and juice), spinach, amaranthus, carambola, Anredera cordifilia Moq, Basella rubra, sweet potato leaves and bitter melon have high oxalate contents.
For patients with oxalate stones or renal failure, proper restrictions of such high-oxalate foods are recommended.

並列關鍵字

urolithiasis ； oxalate ； food analysis