That is just ridiculous. There is a viable mechanism why zinc might have helped. You will not see the evidence if you do not look for it. https://www.ncbi.nlm.

That is just ridiculous. There is a viable mechanism why zinc might have helped. You will not see the evidence if you do not look for it. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7781367/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7781367/ There have also been multiple reports linking the loss of taste or smell to zinc deficiency, either due to chemotherapy and metal chelating agents [38–40], or due to nutritional deficiencies, especially in older populations [41,42], also caused by medical procedures such as dialysis [43]. As a result, zinc has been proposed in the treatment of taste disorders [44,45]; however, zinc supplementation for chemotherapy-induced loss of smell or taste, which is often transient, has not led to improvements in this condition