As a phenomenon: Ramadan fasting improves olfactory performance

IF 1.6 4区医学 Q2 OTORHINOLARYNGOLOGY Laryngoscope Investigative Otolaryngology Pub Date : 2024-09-23 DOI:10.1002/lio2.70017

Doğan Çakan MD, Hüseyin Baki Yılmaz MD, Harun Cansız MD, Haluk Çevik MD, Michael C. F. Tong MD, Begüm Bahar Yılmaz MD, Zeliha Kübra Çakan MD

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Abstract

Objective

The present study objectived to investigate the influence of Ramadan fasting (RF) on olfactory function.

Methods

Sixty-two participants were included in the current prospective study. The odor threshold and identification performances were determined by using the Connecticut Chemosensory Clinical Research Center (CCCRC) test initially (day 0) and on the first and last day (30th) of RF. Body weight (BW)s were measured initially and at the end of the study. The results were analyzed statistically.

Results

The average of baseline and last-day BWs were 78.38 ± 12.96 and 78.36 ± 12.39 kg, respectively. No significant difference was determined in terms of BWs (p = .932, p > .05). In the evaluation of CCCRC test outcomes, significant differences were observed in the scores of butanol thresholds (p = .0001), odor identification (p = .0001), food-related odors identification (p = .0001), and the number of normosmic individuals (p = .0001) at different times (p < .05). The thresholds scores (p = .0001, p = .0001), the identification scores (p = .0001, p = .0001), food-related odors identification scores (p = .0001, p = .0002), and the number of normomic individuals (p = .001, p = .001) detected on 30th day were significantly higher than on 0th and 1st days; respectively (p < .05). Additionally, the threshold scores (p = .0001), the identification scores (p = .003), food-related odors identification scores (p = .007), and the number of normosmic individuals (p = .018) detected on day 1 were significantly higher than on day 0 (p < .05).

Conclusion

The current study demonstrated that Ramadan fasting enhances the olfactory detection threshold and odor identification scores, significantly improving the identification of food-related odors. The results may indicate that Ramadan fasting improves olfactory performance.

Level of evidence

Level II.

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作为一种现象：斋月禁食可提高嗅觉能力。

目的：本研究旨在探讨斋月禁食（RF）对嗅觉功能的影响：本研究旨在调查斋月禁食（RF）对嗅觉功能的影响：本次前瞻性研究共纳入 62 名参与者。通过康涅狄格化感临床研究中心（CCCRC）的测试，确定了最初（第 0 天）以及禁食第一天和最后一天（第 30 天）的气味阈值和识别能力。在研究开始和结束时测量了体重。结果进行了统计分析：基线体重和最后一天体重的平均值分别为 78.38 ± 12.96 千克和 78.36 ± 12.39 千克。体重无明显差异（P = .932，P > .05）。在 CCCRC 测试结果评估中，不同时间段的丁醇阈值（p = .0001）、气味识别（p = .0001）、食物相关气味识别（p = .0001）和正常饮食个体数量（p = .0001）、识别得分（p = .0001，p = .0001）、食物相关气味识别得分（p = .第 30 天检测到的正常个体数量（p = .001，p = .001）分别显著高于第 0 天和第 1 天（p p = .0001），第 1 天检测到的识别分数（p = .003）、与食物相关的气味识别分数（p = .007）和正常个体数量（p = .018）显著高于第 0 天（p 结论：斋月斋戒的饮食习惯与斋月斋戒的饮食习惯密切相关：目前的研究表明，斋月禁食可提高嗅觉检测阈值和气味识别得分，明显改善对食物相关气味的识别。这些结果可能表明，斋月禁食能提高嗅觉能力：证据等级：II 级。

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