維他命E一問

維他命A,K,E 都屬脂溶性維他命, 所以佢地既吸收, 儲存, 新陳代謝等都有密切既關係.
"若每天攝取400 IU或以上的維他命E便應攝取 10000 IU維他命A."
簡單既解釋就係大量既維他命E, 會影響 (減低) 維他命A既吸收同儲存, 所以如果增加維他命E攝取量, 維他命A攝取量亦要增加.
此外, 大量維他命E亦會引起維他命K缺乏症, 影響血液凝固.

"Vitamin E is involved in the absorption, storage, and utilization of Vitamin A in the body, and contributes to avoiding toxicity with Vitamin A intake. Large doses of Vitamin E may deplete Vitamin A stores. "
http://www.enotalone.com/article/9438.html

"Vitamin E can also interfere with the body's absorption of vitamin K, which is involved in blood coagulation. Too much vitamin E may also reduce your body's supply of vitamin A"
http://www.vitaminstuff.com/vitamin-e-2.html
"Vitamin E appears to be safe when consumed in amounts up to 1,000 IU a day, although diarrhea and headaches havebeen reported in some people. Doses of over 800 IU a day of vitamin E may interfere with the body's ability to clot blood, posing a risk to people taking blood thinners (anticoagulants). In addition, high doses of vitamin E may inhibit the absorption of vitamin A."
http://www.healthy-vitamin-choice.com/vitamin-e.html
~:)

2007-03-19 19:30:13 補充：
actually bot excessive vitamin A and E interfere with vitamin K absorption; and too much vitamin A interferes with vitamin D absorption (vitamin D is also one of the fat-soluble vitamins)