The recommended daily allowance for zinc is less than 1 microtuba, and copper less than 0.1 microtuba. <a href="https://twitter.com/jimpjorps/status/897230686427521024">https://twitter.com/jimpjorps/status/897230686427521024</a>

Kelsey Jordahl

@kajord

The recommended daily allowance for zinc is less than 1 microtuba, and copper less than 0.1 microtuba. https://twitter.com/jimpjorps/status/897230686427521024

8/14/2017, 4:32:24 PM

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