The Effectiveness of Zinc Supplementation in Taste Disorder Treatment: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

被引:8
作者
Mozaffar, Boshra [1 ,2 ]
Ardavani, Arash [1 ]
Muzafar, Hisham [3 ]
Idris, Iskandar [1 ]
机构
[1] Univ Nottingham, Royal Derby Hosp, Natl Inst Hlth Res, MRC Versus Arthrit Ctr Musculoskeletal Ageing Res,, Derby, England
[2] Jazan Univ, Clin Nutr Dept, Appl Med Sci, Jazan, Saudi Arabia
[3] Jazan Univ, Coll Pharm, Dept Pharmacol & Toxicol, Jazan, Saudi Arabia
基金
英国医学研究理事会;
关键词
DOUBLE-BLIND; UREMIC HYPOGEUSIA; SMELL; IMPROVEMENT; PREVALENCE; HEALTH;
D O I
10.1155/2023/6711071
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
Introduction. Food taste and flavour affect food choice and acceptance, which are essential to maintain good health and quality of life. Reduced circulating zinc levels have been shown to adversely affect the taste, but the efficacy of zinc supplementation to treat disorders of taste remains unclear. In this systematic review and meta-analysis, we aimed to examine the efficacy of zinc supplementation in the treatment of taste disorders. Methods. We searched four electronic bibliographical databases: Ovid MEDLINE, Ovid Embase, Ovid AMAD, and PubMed. Article bibliographies were also searched, which yielded additional relevant studies. There were no restrictions on the publication date to facilitate the collection and identification of all available and relevant articles published before 7 February 2021. We performed a systematic review and meta-analysis according to the PRISMA Statement. This review was registered at PROSPERO and given the identification number CRD42021228461. Results. In total, we included 12 randomized controlled trials with 938 subjects. The intervention includes zinc (sulfate, gluconate, picolinate, polaprezinc, and acetate), and the pooled results of the meta-analysis of subjects with idiopathic and zinc-deficient taste disorder indicate that improvements in taste disorder occurred more frequently in the experimental group compared to the control group (RR = 1.38; 95% CI: 1.16, 1.64, p=0.0002). Zinc supplementation appears to confer a greater improvement in taste perception amongst those with chronic renal disease using zinc acetate (overall RR = 26.69, 95% CI = 5.52-129.06, p<0.0001). The doses are equivalent to 17 mg-86.7 mg of elemental zinc for three to six months. Conclusion. Zinc supplementation is an effective treatment for taste disorders in patients with zinc deficiency, idiopathic taste disorders, and in patients with taste disorders induced by chronic renal failure when given in high doses ranging from 68 to 86.7 mg/d for up to six months.
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页数:13
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