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Most Zinc underdosed?

zinc dosing

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#1 vtrader

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Posted 23 May 2016 - 07:21 PM


Maybe I am reading https://examine.com/supplements/zinc/

wrong.

As it states for dosing

 

"

How to Take Recommended dosage, active amounts, other details

Zinc has two standard dosages. The low dosage is 5-10mg, while the high dosage is 25-45mg. The low dose works well as a daily preventative, while the high dosage should be taken by anyone at risk for a zinc deficiency.

Different forms of zinc contain different amounts of elemental zinc, which refers to the weight of the zinc molecule by itself (Note: Product labels tend to mark the elemental weight)

  • Zinc citrate is approximately 34% zinc by weight. For a dose of 50mg elemental zinc, take 146 mg zinc citrate.

  • Zinc sulfate is approximately 22% zinc by weight. For a dose of 50mg elemental zinc, take 220 mg zinc sulfate.

  • Zinc gluconate is approximately 13% zinc by weight. For a dose of 50mg elemental zinc, take 385 mg zinc gluconate.

  • Zinc monomethionine is approximately 21% zinc by weight. For a dose of 50mg elemental zinc, take 238 mg zinc monomethionine.

Zinc should be supplemented daily.

Superloading zinc by taking up to 100mg zinc a day is confirmed to be safe in the short term (2-4 months), but because this dose is higher than the 40mg Tolerable Upper Limit (TUL) of zinc, prolonged superloading is not advised. Zinc’s intestinal uptake is hindered by other minerals, including Calcium,Magnesium, and Iron, since they all use the same transporter. If the transporter’s uptake limit (800mg) is exceeding between these four minerals, absorption rates will fall. Taking less than 800mg of these four minerals at the same time is fine."

Are most supplements really element weight?



#2 pamojja

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Posted 23 May 2016 - 08:32 PM

Are most supplements really element weight?
Different forms of zinc contain different amounts of elemental zinc, which refers to the weight of the zinc molecule by itself (Note: Product labels tend to mark the elemental weight)

 

Sometimes I'm really surprised by the ignorance at examine.com. Just check the Daily Value given at any well known supplement store, for example at iherb.com, for most zinc supplements. And it would be clear that it's the elemental weight of elemental zinc what is given. Not of the the whole compound.

 

However, just came across one zinc supplement were this convention is indeed ignored.


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