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How much zinc in Centrum Silver for men? 

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This paper presents a novel approach for concentrating and recovering silver present in minor amounts in zinc sulfate media.
Zinc status of the individual may also influence adjustments in fractional zinc absorption.
These results indicate that silver administration causes a disturbance of copper metabolism, and that zinc hardly plays a protective role against such changes.
Zinc absorption in humans could be improved by zinc complexation with gluconate.
This study is the first one evaluating the serum status of copper and zinc in healthy Greeks and it has shown that they are at the highest concentration range for copper and the lowest for zinc compared to literature data on copper and zinc levels for various countries.

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