Not all zinc supplements are the same | 並非所有的鋅補充劑都是一樣的

Saturday 11/27/2021 (jkzx.com) — Zinc as a nutrient supplement has caught a lot of attention lately because it is believed to play an essential role in preventing and curing Sars Cov 2 infection or covid 19.   But consumers need to know that zinc comes in a form of salt and not all zinc salts are the same.

The commonly used zinc salts include zinc citrate, zinc gluconate, zinc sulfate, zinc glycinate, zinc picolinate, zinc orotate, zinc acetate, and zinc oxide.  Are these all good zinc salts you can use as a supplement?

The first thing you need to consider is, does the zinc salt you are looking at dissolve in water? If not, you can not absorb nor use it.  You should avoid such zinc salt. Unfortunately, not all zinc salts aforementioned have good solubility.  Therefore, some zinc salts are not good as a zinc supplement.

Zinc citrate is only slightly soluble in water.  So it is not a good zinc supplement.  Zinc is used often as a supplement to boost immunity and a large dose is important.  This type of zinc salt is not likely to provide enough useful zinc.

Zinc gluconate solubility in water is 100 grams per liter.  So this zinc salt seems ok.  But the solubility is limited and it cannot dissolve in water freely.

Zinc sulfate is a salt formed with strong acid hydrogen sulfate (H2SO4).  Its solubility in water is 477 grams per liter, which is probably the highest or best you can use as a zinc supplement.

Zinc glycinate solubility in water is 194 grams per liter.  So it is not too bad, but not ideal.

Zinc picolinate is only slightly soluble in water.  So it is not a good zinc supplement.

Zinc orotate solubility in water is 0.635 grams per liter.  Bad.

Zinc acetate water solubility is 439 grams per liter.  One of the best zinc salt you can use as a zinc supplement.  Recommended.

Zinc oxide water solubility is insoluble.  It can slightly dissolve in acidic water.  This salt can be a nanoparticle, which is cytotoxic.  No one should use this type zinc salt as a zinc supplement.  Some manufacturers claimed this zinc can be timely released, which is not the case.  Zinc is often used as an immunity booster which needs to be used in a large quantity.  You cannot afford to do timely releases or slow releases.  Try to avoid it.

When water solubility is considered, the preferred zinc salts should be in the following order of most desired to least desired.

Zinc sulfate (best) > Zinc acetate (second desirable) > Zinc glycinate (fine) > Zinc gluconate (not ideal, but ok).

Some supplement manufacturers may not be forthcoming in terms of the type of zinc salt they use.  They simply say zinc or chelate with rice or amino acids.  Try to avoid those types of zinc also.

Other types of zinc salts need to be avoided because zinc from those zinc salts is not readily available as a zinc nutrient or supplement to your body.  You are going to waste the majority of it.  Use of such undesired zinc salts can only provide you with a false hope.  It can hurt you because you could not get the nutritional value or the efficacy.

Zinc oxide can be a nanoparticle depending on its particulate size.  Zinc oxide nanoparticles like other nanoparticles such as titanium dioxide and silicon dioxide can cause damage to cells and may cause mutations.  Zinc oxide should by all means be avoided. (Dr. Lu)

2021 年 11 月 27 日星期六(jkzx.com)——鋅 (zinc) 作為一種營養補充劑 (nutritional supplement) 最近引起了很多關注,因為它被認為在預防和治療 Sars Cov 2 感染 (infection) 或 covid 19 方面發揮著重要作用。但消費者需要知道鋅以鹽 (salt) 的形式出現,並不是所有的鋅鹽 (zinc salt) 都是一樣的。

常用的鋅鹽有檸檬酸鋅 (zinc citrate)、葡萄糖酸鋅 (zinc gluconate)、硫酸鋅 (zinc sulfate)、甘氨酸鋅 (zinc glycinate)、吡啶甲酸鋅 (zinc picolinate)、乳清酸鋅 (zinc orotate)、醋酸鋅 (zinc acetate)、氧化鋅 (zinc oxide) 等。這些都是可以用作補充劑的好的鋅鹽嗎?

您需要考慮的第一件事是,您要查看的鋅鹽是否溶於水?如果沒有,則不能吸收也不能使用。你應該避免這種鋅鹽。不幸的是,並非所有上述鋅鹽都具有良好的溶解性 (solubility)。因此,一些鋅鹽不能很好地作為鋅補充劑。

檸檬酸鋅 (zinc citrate) 僅微溶於水。所以它不是一個很好的鋅補充劑。鋅經常被用作增強免疫力的補充劑,大劑量很重要。這種類型的鋅鹽不太可能提供足夠的有用鋅。

葡萄糖酸鋅 (zinc gluconate) 在水中的溶解度為100克/升。所以這種鋅鹽似乎沒問題。但溶解度有限,不能自由溶於水。

硫酸鋅 (zinc sulfate) 是與強酸性硫酸氫鹽 (H2SO4) 形成的鹽。它在水中的溶解度為每升 477 克,這可能是您可以用作鋅補充劑的最高或最好的。

甘氨酸鋅 (zinc glycinate) 在水中的溶解度為每升 194 克。所以還不算太差,但也不理想。

吡啶甲酸鋅 (zinc picolinate) 僅微溶於水。所以它不是一個很好的鋅補充劑 (zinc supplement)。

乳清酸鋅 (zinc orotate) 在水中的溶解度為每升 0.635 克。壞的 (bad)。

醋酸鋅 (zinc acetate) 的水溶性為每升 439 克。可以用作鋅補充劑的最好的鋅鹽之一。受到推崇的。

氧化鋅 (zinc oxide) 水溶性不溶。微溶於酸性水。這種鹽可以是具有細胞毒性的納米顆粒 (nanoparticles)。沒有人應該使用這種類型的鋅鹽作為鋅補充劑。一些廠家聲稱這種鋅可以及時釋放 (timely release),但事實並非如此。鋅常被用作免疫增強劑 (immunity booster),需要大量使用。你不能及時發布或緩慢發布。盡量避免它。

當考慮水溶性時,優選的鋅鹽應按以下從最希望到最不希望的順序排列。

硫酸鋅 (zinc sulfate)(最好 (best))> 醋酸鋅 (zinc acetate)(第二理想 second desired))> 甘氨酸鋅 (zinc glycinate)(精細 fine)> 甘氨酸鋅  (zinc gluconate)(不理想,但還可以 (not ideal but ok))。

就他們使用的鋅鹽類型而言,一些補充劑製造商可能不會公開。他們只是說鋅或與大米或氨基酸螯合 Chelate)。盡量避免這些類型的鋅。

需要避免使用其他類型的鋅鹽,因為這些鋅鹽中的鋅不容易作為鋅營養素或補充劑提供給您的身體。你會浪費大部分。使用這種不需要的鋅鹽只會給您帶來虛假的希望 (false hope)。它會傷害您,因為您無法獲得營養價值或功效。

氧化鋅 (zinc oxide) 可以是納米顆粒,這取決於其顆粒尺寸。氧化鋅納米粒子與二氧化鈦 (titanium dioxide) 和二氧化矽 (silicon dioxide) 等其他納米粒子一樣,會對細胞造成損害,並可能導致突變 (mutation)。應盡量避免使用氧化鋅。 (陸博士)

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