A randomized, placebo controlled trial of oral zinc for chemotherapy-related taste and smell disorders. – Cost Effective Supplements

A randomized, placebo controlled trial of oral zinc for chemotherapy-related taste and smell disorders.

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Link to full study

http://www.ncbi.nlm.nih.gov/pubmed/22764846

Conclusion of this study

The zinc dose was 220 mg orally twice daily (equivalent of 50 mg elemental zinc twice daily). There was no statistically significant improvement in loss or distortion of taste or smell with the addition of zinc. There was a trend toward improvement over time in all groups, except in the zinc group where there was a nonsignificant worsening in loss of smell over time. Zinc at standard doses did not provide significant benefit to taste or smell in patients receiving chemotherapy.