What vitamin deficiencies cause soapy taste and other dysgeusia symptoms?
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5 min read
According to research published in the journal *Nutrients*, impaired taste perception is more likely among adults with vitamin D deficiency, especially in older age. While a specific 'soapy' flavor is most often linked to external factors, nutritional deficits can cause dysgeusia, or distorted taste, which some people may describe as soapy or metallic. This article explores the vitamin deficiencies known to affect taste and clarifies other common, non-nutritional causes.
