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Another primary cause of dysgeusia is zinc deficiency. While the exact role of zinc in dysgeusia is unknown, it has been cited that zinc is partly responsible for the repair and production of taste buds. Zinc somehow directly or indirectly interacts with carbonic anhydrase VI, influencing the concentration of gustin, which is linked to the ...
Zinc deficiency is defined either as insufficient zinc to meet the needs of the body, or as a serum zinc level below the normal range. However, since a decrease in the serum concentration is only detectable after long-term or severe depletion, serum zinc is not a reliable biomarker for zinc status. [ 1 ]
While zinc supplementation may treat certain taste dysfunctions, there is a lack of evidence for treatment regarding hypogeusia and dysgeusia not caused by low zinc concentrations in the body. [6] While the mechanisms surrounding hypogeusia from PD are hypothesized, specific treatments are not researched enough. [3]
Because zinc is found in so many foods, deficiency in the United States isn’t common—but it does exist. “Zinc is better absorbed from animal-based foods than plant-based, as the phytates ...
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In cases of zinc deficiency, a shortage of zinc-binding proteins that help with the growth and development of taste buds, could result in taste bud issues associated with ageusia, hypogeusia, and hyposalivation. [8]
Oysters are an especially rich source of zinc, containing “anywhere from 28.1 to 32 mg of zinc per 3 oz serving, which is double the 14 milligrams a day referenced in this study,” Whitaker noted.
The concentration of zinc in plants varies with the level in the soil. With adequate zinc in the soil, the food plants that contain the most zinc are wheat (germ and bran) and various seeds, including sesame, poppy, alfalfa, celery, and mustard. [43] Zinc is also found in beans, nuts, almonds, whole grains, pumpkin seeds, sunflower seeds, and ...