for which general laboratory tests were ordered and revealed anemia and leukopenia. The testing revealed that the patient’s copper level was <5 μg/dL. When asked specifically about his supplement intake, the patient stated that he had previously been taking large amounts of zinc supplementation as he believed it would be helpful in the prevention of COVID-19 infection. He was unsure of the daily dose he had taken but stated he took the supplements for about 6 months and had stopped 2 months before presenting to the hospital. A zinc level was then drawn which was elevated at 133 μg/dL (60–130 μg/dL). At a follow-up visit, the patient was asked to bring the zinc supplements he had previously consumed. He provided a 100-count package of 50 mg zinc tablets, which was about 95% empty. These findings pointed toward a potential role of zinc overdose in inducing severe copper deficiency. This deficiency is likely what resulted in the patient’s anemia, leukopenia, and paresthesia. The patient was started on copper supplementation of 8 mg daily with instruction to decrease the dose by 2 mg every week and was advised to stop taking zinc."----Copper Deficiency Mimicking Myelodysplastic Syndrome: Zinc Supplementation in the Setting of COVID19, case reports in oncology

I had panic attacks and a 5 second seizure from less than 50mg. Still got anhedonia. Started after using zinc supplement 4 months