Dietary patterns and semen quality: a systematic review and meta‐analysis of observational studies

Arab, Arman; Rafie, Nahid; Mansourian, Marjan; Miraghajani, Maryam; Hajianfar, Hossein

doi:10.1111/andr.12430

Cited by 48 publications

(39 citation statements)

References 68 publications

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“…Studies assessing the effect of healthy dietary patterns, regardless of whether they were dataor hypothesis-driven, presented a positive relationship with sperm quality [25]. Healthy dietary patterns, including the DASH diet, correlated positively with the intake of foods or nutrients, which have a favourable effect on maintaining or improving semen quality [26].…”

Section: Discussionmentioning

confidence: 99%

Association of the Dietary Approaches to Stop Hypertension, Physical Activity, and Their Combination with Semen Quality: A Cross-Sectional Study

et al. 2019

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The influence of individual lifestyle factors is widely described in studies on semen quality. However, their synergistic effect is often neglected. The aim of the study was to examine the association between semen quality and dietary approaches to stop hypertension (DASH) diet, physical activity (PA), and the two separately and in combination. A cross-sectional study was carried out among 207 men aged 20-55. Dietary data were collected by a food frequency questionnaire (FFQ) and analysed according to the DASH scoring index. Physical activity was evaluated by the International Physical Activity Questionnaire. Semen parameters were assessed via the computer-aided semen analysis (CASA). Adherence to the DASH diet was associated with higher sperm count (∆ T3-T1 = 82.1 mln/ej) and concentration (∆ T3-T1 = 24.6 mln/mL). Higher PA was related to higher sperm count (∆ T3-T1 = 69.4 mln/ej), total (∆ T3-T1 = 11.9%), and progressive motility (∆ T3-T1 = 8.5%) and morphology (∆ T3-T1 = 2.8%) in the crude model and remained significant after adjustment. The combination of the DASH diet and PA, was significantly positively associated with sperm count (∆ T3-T1 = 98.1 mln/ej), sperm concentration (∆ T3-T1 = 17.5 mln/mL), total (∆ T3-T1 = 11.8%), and progressive motility (∆ T3-T1 = 10.0%) and morphology (∆ T3-T1 = 3.3%) in both models. Adherence to the DASH diet was related to higher sperm count and concentration, whereas after its combination with physical activity it was also positively correlated with sperm motility and morphology.Most of the epidemiological studies have assessed the effects of single foods, nutrients and other lifestyle factors on semen parameters [6-9], whereas their synergistic effect is neglected. Some lifestyle behaviours co-occur together and in combination are more beneficial to health than their cumulative individual effect. Moreover, interventions aimed at multiple-behaviour change may have a potentially greater impact on health than interventions based on a single risk factor [10].The easiest modifiable lifestyle factors, with the important impact on semen quality, are diet and physical activity. The dietary approaches to stop hypertension (DASH) diet is one of the most well-known dietary strategies, and its effect is often linked with prevention and treatment of hypertension, diabetes, obesity, and coronary artery disease [11]. Moreover, its effects were studied in the context of other diseases [12], including semen quality [13]. The DASH diet can be adapted to any variance in regional diet, which can make lifestyle-related health factors grow more sustainable [14]. The DASH diet reflects a healthy eating pattern holistically, promoting food such as food sources of vitamins, minerals, and antioxidants, and limiting food high in saturated fats, sugar, and sodium. Previous research has indicated that this dietary pattern may be important to maintain proper semen quality [6,13].Physical activity is one of the health promoting lifestyle factors. However, earlier studies describing a link between physica...

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Section: Discussionmentioning

confidence: 99%

Association of the Dietary Approaches to Stop Hypertension, Physical Activity, and Their Combination with Semen Quality: A Cross-Sectional Study

et al. 2019

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“…6,7 More recently, however, interest has shifted to focus on the role of overall diet patterns. 7,8 Although this literature is still expanding, these studies suggest that adherence to generally healthy diet patterns is…”

Section: Introductionmentioning

confidence: 99%

Association of Dietary Patterns With Testicular Function in Young Danish Men

et al. 2020

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“…All analyses were done using the random effects model which takes the between-study variability into account. 31 The sensitivity analyses were also performed to assess the influence of each individual study on the stability of the meta-analysis results. Each time, one study was excluded to show the impact of that study on the combined effect estimate.…”

Section: Discussionmentioning

confidence: 99%

“…Studies scoring 7-10, 3-6, and 0-3 points were identified as high, moderate, and low quality, respectively. 30…”

Section: Study Qualitymentioning

confidence: 99%

“…Publication bias was assessed by visual inspection of the funnel plots, and Egger's and Begg's tests were conducted to determine the degree of funnel plot asymmetry with p<0.05 representing significant publication bias. 30 When publication bias was found, trim & fill analysis performed to find out the effects of missed study on overall effects.…”

Section: Assessment Of Publication Biasmentioning

confidence: 99%

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<p>The association between omentin and diabetes: a systematic review and meta-analysis of observational studies</p>

́habi

Sadeghi

Arab

et al. 2019

DMSO

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Aims: A number of studies have examined the association between the serum levels of omentin and diabetes, but the findings have been inconclusive. Herein, we systematically reviewed available observational studies to elucidate the overall relationship between omentin and diabetes, including type 1 diabetes mellitus (T1DM), type 2 diabetes mellitus (T2DM), and impaired glucose tolerance (IGT) among adolescent and adult population. Methods: PubMed, Cochrane's Library, Science Direct, Scopus, Google Scholar, and ISI Web of Science databases were searched for all available literature until January 2019 for studies assessing the association between omentin and diabetes. The Newcastle-Ottawa Quality Assessment Scale was used to assess the quality of each study. Results: A total of 28 articles met the inclusion criteria and were included in our systematic review and meta-analysis. There was a significant association between serum omentin and diabetes (WMD−1.68; 95% CI, −2.17 to −1.19; P<0.001). The result of our subgroup analysis based on participants' health status revealed that omentin was significantly lower in T2DM and IGT subjects but not in T1DM ones compared to healthy controls. Conclusion: We found that serum omentin level is significantly lower in T2DM and IGT patients but not in T1DM ones. These data could be used by clinicians for early diagnosis and management of diabetes. Furthermore, we need more clinical trials to investigate new agents which could influence omentin levels.

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Dietary patterns and semen quality: a systematic review and meta‐analysis of observational studies

Cited by 48 publications

References 68 publications

Association of the Dietary Approaches to Stop Hypertension, Physical Activity, and Their Combination with Semen Quality: A Cross-Sectional Study

Association of the Dietary Approaches to Stop Hypertension, Physical Activity, and Their Combination with Semen Quality: A Cross-Sectional Study

Association of Dietary Patterns With Testicular Function in Young Danish Men

<p>The association between omentin and diabetes: a systematic review and meta-analysis of observational studies</p>

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