Dietary patterns and outcomes of assisted reproduction

Gaskins, Audrey J.; Nassan, Feiby L.; Chiu, Yu‐Han; Arvizu, Mariel; Williams, Paige L.; Keller, M.; Souter, Irene; Hauser, Russ; Chavarro, Jorge E.; Team, Earth Study

doi:10.1016/j.ajog.2019.02.004

Cited by 86 publications

(139 citation statements)

References 32 publications

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“…Evidence studying the relationship between diet and fertility is rarely regarding foods or dietary patterns and mostly oriented to single nutrients [ 267 ]. Humans do not typically consume antioxidants or nutrients in pure form.…”

Section: Future Directions: Foods and Dietary Patterns In Male Infmentioning

confidence: 99%

Dietary Antioxidants in the Treatment of Male Infertility: Counteracting Oxidative Stress

Torres-Arce

Vizmanos

Babió

et al. 2021

Biology

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Infertility affects about 15% of the population and male factors only are responsible for ~25–30% of cases of infertility. Currently, the etiology of suboptimal semen quality is poorly understood, and many environmental and genetic factors, including oxidative stress, have been implicated. Oxidative stress is an imbalance between the production of free radicals, or reactive oxygen species (ROS), and the capacity of the body to counteract their harmful effects through neutralization by antioxidants. The purpose of this review, by employing the joint expertise of international researchers specialized in nutrition and male fertility areas, is to update the knowledge about the reproductive consequences of excessive ROS concentrations and oxidative stress on the semen quality and Assisted Reproduction Techniques (ART) clinical outcomes, to discuss the role of antioxidants in fertility outcomes, and finally to discuss why foods and dietary patterns are more innocuous long term solution for ameliorating oxidative stress and therefore semen quality results and ART fertility outcomes. Since this is a narrative review and not a systematic/meta-analysis, the summarized information in the present study should be considered cautiously.

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Section: Future Directions: Foods and Dietary Patterns In Male Infmentioning

confidence: 99%

Dietary Antioxidants in the Treatment of Male Infertility: Counteracting Oxidative Stress

Torres-Arce

Vizmanos

Babió

et al. 2021

Biology

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“…Zahlreiche Studien stützen die These, dass eine Einhaltung der MD, ein hoher Score bei der Diät oder der Verzehr bestimmter Bestandteile der Diät (Fisch, Milchprodukte etc.) zu einer Verbesserung der Raten für klinische Schwangerschaften und Lebendgeburten nach In-vitro-Fertilisation (IVF) führen [2] [3]. Jedoch ist die Generalisierbarkeit einzelner Studien auf alle Frauen mit Fertilitätsproblemen nicht möglich.…”

Section: Die Mediterrane Diät Als Perikonzeptionelle Ernährungsformunclassified

“…Jedoch ist die Generalisierbarkeit einzelner Studien auf alle Frauen mit Fertilitätsproblemen nicht möglich. Eine strengere Einhaltung der MD war mit einem besseren IVF-Ausgang assoziiert, aber es wurde keine dosisabhängige Beziehung festgestellt [2].…”

Section: Die Mediterrane Diät Als Perikonzeptionelle Ernährungsformunclassified

“…In einer weiteren Untersuchung zeigte eine Pro-Fertilitätsdiät als Vorbehandlung mit höherer Zufuhr von Folsäure, Vitamin B 12 , Vitamin D, Obst und Gemüse ohne Pestizidrückstände, Vollkornprodukten, Milchprodukten, Soja, Meeresfrüchten und wenig Fleisch noch bessere IVF-Ergebnisse als die MD [2]. Die Ergebnisse sollten aufgrund des beobachtenden Studiencharakters (keine randomisierte kontrollierte Studie) mit Vorsicht betrachtet werden.…”

Section: Die Mediterrane Diät Als Perikonzeptionelle Ernährungsformunclassified

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Mediterrane Diät vor und während der Schwangerschaft

Pannenbäcker¹,

Obeid²

2020

Ernährung & Medizin

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ZusammenfassungIm Vergleich zu veganen und vegetarischen Ernährungsformen ist die mediterrane Diät (MD) vielfältiger, ausgewogener in Bezug auf Makro- und Mikronährstoffe und mithilfe von Score-Systemen in der Literatur besser definiert. Studien weisen darauf hin, dass die MD vor und während der Schwangerschaft protektive Effekte auf die Gesundheit von Mutter und Kind haben kann, so z. B. gegenüber Gestationsdiabetes, Präeklampsie, einem niedrigen Geburtsgewicht oder Frühgeburtlichkeit.

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“…Two studies from Europe, by Vujkovic et al (2010) and Karayiannis et al (2018) , reported that a greater adherence to a ‘Mediterranean diet’ pattern (rich in vegetable oils, fish, legumes, whole grains and low in meat) preconception, enhanced the odds of achieving a successful pregnancy through ART. Further to this, a study group from the USA classified 357 women undergoing ART into quartiles based on adherence to four different dietary patterns—MedDiet, Fertility diet, Alternate Healthy Eating Index 2010 and profertility diet ( Gaskins et al , 2019 ). Contrary to findings from the European studies, they showed no additional improvement in live birth rate above the second quartile of adherence to the MedDiet.…”

Section: Introductionmentioning

confidence: 99%

Dietary pattern characterisation among subfertile South Asian women and the impact of vitamin B12 intake on frozen embryo transfer outcomes: a cross-sectional study

Ravichandran

Babuji

Gowri

et al. 2021

Human Reproduction Open

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STUDY QUESTION Is there a difference in dietary patterns among subfertile South Asian women undergoing frozen embryo transfer (FET)? SUMMARY ANSWER Significant regional differences in dietary pattern exist among subfertile South Asian women undergoing FET. WHAT IS KNOWN ALREADY Preconception consumption of certain food groups or adopting specific dietary patterns, such as the ‘Mediterranean diet’, and its level of adherence have been shown to enhance the odds of achieving a successful pregnancy in women undergoing ART. However, differences in geographic location, individual preference, cultural beliefs and local availability contribute to such dietary choices. There is also a predisposition to a vitamin B12 deficiency in those of South Asian ethnicity and a predominant pattern of vegetarian food intake. There is a paucity of studies analysing the type of dietary pattern followed by South Asian women, their vitamin B12 levels and the potential impact on ART treatment outcomes. STUDY DESIGN, SIZE, DURATION This is a cross-sectional study of 159 South Asian women aged 21–37 years, belonging to the Eastern (n = 75) and Southern (n = 84) regions of India plus Bangladesh, and undergoing a FET cycle at a tertiary level infertility clinic between February 2019 and March 2020. PARTICIPANTS/MATERIALS, SETTING, METHODS Women underwent dietary assessment using ‘24-hour dietary recall’ to capture daily nutrient consumption. A ‘Food Frequency Questionnaire’ listing commonly consumed foods was used to record frequency of intake. The primary outcome was the characterisation of regional dietary patterns in the cohorts using principal component analysis (PCA). Secondary outcomes included association of vitamin B12 intake and serum levels with clinical and ongoing pregnancy. MAIN RESULTS AND THE ROLE OF CHANCE Four components contributing to overall variance in dietary pattern were identified, namely: meat, poultry and seafood; green leafy vegetables and root tubers; fruits, dairy and sugar; nuts and oilseeds. PCA analysis showed a significantly higher consumption of two components in the East—meat, poultry and fish (P < 0.001); green leafy vegetables and root tubers (P < 0.001). All women reported taking preconception oral folic acid supplementation. The dietary intake of vitamin B12 and serum concentration correlated, showing a good validity of measured dietary intake (r = 0.398; P ≤ 0.001). Compared to the Southern region, participants from the East showed a higher daily median intake of vitamin B12 (1.11 versus 0.28 mcg, respectively; P < 0.001) and a higher serum vitamin B12 levels (441 versus 239 pg/ml, respectively; P < 0.001). Ongoing pregnancy showed no association with dietary vitamin B12 intake (relative risk 0.90; 95% CI, 0.68 to 1.19) or serum vitamin B12 levels (relative risk 0.99; 95% CI, 0.73 to 1.33) after adjustments for female age, body mass index (BMI) and geographic differences. Women belonging to different quartiles of serum vitamin B12 concentration had a similar likelihood of ongoing pregnancy. LIMITATIONS, REASONS FOR CAUTION Self-reported dietary assessment is prone to measurement errors owing to its subjective nature and recall bias. The study was not adequately powered to detect the impact of geographic differences in vitamin B12 intake and serum levels on FET treatment outcomes, the second objective. We adjusted for potential confounders, such as female age and BMI, but it is possible that residual confounders, such as physical activity, stress and use of dietary supplements, may have influenced the results. Extrapolation of the study findings to women undergoing ART in other populations should be made with caution. WIDER IMPLICATIONS OF THE FINDINGS Our study findings suggest important differences in local dietary patterns within the South Asian region. Hence a personalised approach to dietary assessment and intervention when undergoing ART based on population dynamics is warranted. The geographic differences in the vitamin B12 intake or serum levels did not have an impact on the FET outcomes. There is also a need to further investigate the impact of such dietary differences on ART treatment outcomes in a large study population. STUDY FUNDING/COMPETING INTEREST(S) No grant from funding agencies in the public, commercial, or not-for-profit sectors was obtained. The authors have nothing to disclose. TRIAL REGISTRATION NUMBER N/A

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Dietary patterns and outcomes of assisted reproduction

Cited by 86 publications

References 32 publications

Dietary Antioxidants in the Treatment of Male Infertility: Counteracting Oxidative Stress

Dietary Antioxidants in the Treatment of Male Infertility: Counteracting Oxidative Stress

Mediterrane Diät vor und während der Schwangerschaft

Dietary pattern characterisation among subfertile South Asian women and the impact of vitamin B12 intake on frozen embryo transfer outcomes: a cross-sectional study

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