硬脂酸鎂 (Magnesium Stearate)

上圖為sciencelab刊載有關硬脂酸鎂(Magnesium stearate)在美國加洲受管制的資料：

http://www.sciencelab.com/msds.php?msdsId=9927217

美國《加州65提案》(California Proposition 65)中指出：

California prop. 65: This product contains the following ingredients for which the State of California has found to cause cancer, birth defects or other reproductive harm, which would require a warning under the statute: Magnesium stearate

美國《加州65提案》：此產品含有以下有害成份，於加洲內必須列明警告，顯示此產品已被發現會引致癌症、造成胎兒發育不全或其他生育損害：硬脂酸鎂

California prop.65: This product contains the following ingredients for which the State of California has found to cause cancer which would require a warning under the statute: Magnesium stearate

美國《加州65提案》：此產品含有以下有害成份，於加洲內必須列明警告，顯示此產品已被發現會引致癌症：硬脂酸鎂

TSCA 8(b) inventory: Magnesium stearate

Toxic Substance Control Act 有毒物質管理法案8(b)名單：硬脂酸鎂

硬脂酸鎂 (Magnesium Stearate)

硬脂酸鎂的其他問題:

1. 產品難於溶解及吸收
加入硬脂酸鎂之後，營養素會變得難以溶解，1985年4月於藥劑期刊 ---- 藥劑技術(Pharmaceutical Technology) 的一項研究發現，沒有添加硬脂酸鎂的有90%會於20分鐘內溶解，但是添加了硬脂酸鎂的只有25%可於20分鐘內溶解，換句話說，硬脂酸鎂把藥品的可溶解性減少了 65% !!!

因此，添加了硬脂酸鎂之後，膠囊內的營養素根本有大部份不能在腸內被釋放，而且，如果消化力不佳的人服用了此類藥品，更會造成腸胃的問題。

2. 可引起敏感症
美國有機消費者協會 (The Organic Consumers Association) 指出硬脂酸鎂可引起敏感，尤其對於奶類敏感者更易於對硬脂酸鎂敏感。

3. 肝臟傷害
Science lab 於2005年作出警告，口服硬脂酸鎂可引致肝臟損害。

4. 毒害免疫系統
硬脂酸鎂及硬脂酸均會損害細胞膜而針對T淋巴細胞，造成免疫系統紊亂，更可能因此出現病變及癌症。

原來這添加物只是幫助減低NUSKIN的製作成本，因為混合幾種營養東西之後，它們會互相黏著，而且會黏著部機器，當有部份製成品黏上機器，就自然要花人力物力去刮下，於是製作的時間及成本就會增加。

添加了硬脂酸鎂，產品就不會黏著機器，製作成本就平很多!

所以這添加物只為了減低成本，以盡量謀取更大的利潤。不過這會減低產品質素，而且如果長期進食，已有報告顯示可引致嚴重的毒害。

為甚麼要NUSKIN要添加硬脂酸鎂(Magnesium stearate)？

為甚麼仍可以合法使用硬脂酸鎂？

因為聯邦法中Code of Federal Regulations Title 21, Volume 3 把硬脂酸鎂列為 GRAS (公認為安全的物質)。 GRAS (公認為安全的物質) 就是指在1958年1月1日美國立法管制添加物(Food Additives Amendment of 1958) 之前趕及"抵壘" 的添加物。意思是：從來沒有數據表示它們是安全的，只有當時沒有立法管制，又有太多添加物已經有商家使用，為免衝突，就叫它安全吧！

GRAS Substances (SCOGS) Database
Select Committee on GRAS Substances (SCOGS) Opinion: Stearic acid (packaging)
Stearic acid (packaging)
SCOGS-Report Number: 54*
Type Of Conclusion: 1
ID Code: 57-11-4
Year: 1975
21 CFR Section: 184.1090

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