豆類含 "植酸", 可引致 礦物質 缺乏
本帖最後由 marcuslee 於 2010-5-30 10:28 編輯
多種豆類/穀類 含 "植酸"， 會阻止身體吸收礦物質
多種豆類中含 "植酸" 可以和 鈣，鎂，鐵，鋅等礦物質 結合。經結合後，人體無法吸收這些礦物質。而以這些食物為主食，會引致礦物質缺乏。
"植酸" 亦會和 維他命B3 結合，阻止吸收，引致 "糙皮病"
小童不宜多食。
(含植酦的主要食物:巴西果仁，芝麻粉，杏仁，豆腐，亞麻籽，燕麥片，斑豆，黃豆，粟米，黃豆蛋白 ...)
Phytic acid has a strong binding affinity to important minerals such as calcium, magnesium, iron, and zinc. When a mineral binds to phytic acid, it becomes insoluble, precipitates and will be inabsorpable in the intestines. This process can therefore contribute to mineral deficiencies in people whose diets rely on these foods for their mineral intake, such as those in developing countries.[8][9] Contrary to that, one study correlated decreased osteoporosis risk with phytic acid consumption.[10] It also acts as an acid, chelating the vitamin niacin, which is basic, causing the condition known as pellagra.[11] In this way, it is an anti-nutrient, despite its possible therapeutic effects (see below). For people with a particularly low intake of essential minerals, especially young children and those in developing countries, this effect can be undesirable.
http://en.wikipedia.org/wiki/Phytic_acid#Food_science
(文中說 "發展中國家人民會受其影响" - 因為發展中國家有些人民以高植酸作物為主食。)
那麼日常以 豆腐/大豆/粟米/燕麥片 為主食的朋友也要小心。 |
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顯身卡
唉!...
