News | Study Finds Nut Intake Significantly Improves Male Fertility
A systematic review published in Advances in Nutrition found that nut intake had a significant positive effect on male fertility. Researchers searched four scientific databases and included four studies with 875 participants. Men who ate more than 60 grams of nuts daily had significantly better sperm vitality, motility, and morphology than controls. Although research on female fertility is limited, the review found that two daily servings of nuts significantly improved sperm measures directly related to male fertility.
The Global Challenge of Infertility
Infertility is a major global health issue, defined as inability to conceive within one year without contraception. It affects couples' social, economic, and psychological well-being and is associated with parental age, nutritional status, clinical health conditions, and inherited hormonal disorders.
Worldwide, infertility affects about 8%-12% of adults of reproductive age, defined here as 18-49. Rates are rising in less developed and developing countries and reach or exceed 30% in some areas. Despite advances in research, the cause remains undiagnosed in 10%-15% of cases, and many patients rely on costly assisted reproductive technology (ART).
Nuts and Fertility
Nuts are rich in protein, fiber, minerals, vitamins, and bioactive compounds that may support fertility. Their omega-3 and omega-6 fatty-acid profile and low saturated-fat content may help reduce several chronic conditions related to cardiovascular and mental health. Nuts may therefore be a useful dietary addition for people with poor-quality diets, such as a Western diet.
Methods
This systematic review and meta-analysis followed PRISMA guidelines. Researchers searched four databases through June 30, 2023. Eligible studies included cross-sectional, cohort, case-control, or randomized controlled trials (RCTs) involving people ages 18-49 and lasting at least three months.
Analysis showed that nut intake improved sperm vitality, motility, and morphology, with significant improvements among men who ate 60 grams daily. There is not yet enough evidence that nuts have a clear effect on female fertility, and more research is needed.
Conclusion
The study identified nut intake as a simple dietary intervention that may improve male fertility, particularly for people with poor-quality diets. The authors called for further research on female fertility and recommended that dietary guidance be considered only when stronger evidence is available.
News | Study Finds Nut Intake Significantly Improves Male Fertility
News | Study Finds Nut Intake Significantly Improves Male Fertility
A systematic review published in Advances in Nutrition found that nut intake had a significant positive effect on male fertility. Researchers searched four scientific databases and included four studies with 875 participants. Men who ate more than 60 grams of nuts daily had significantly better sperm vitality, motility, and morphology than controls. Although research on female fertility is limited, the review found that two daily servings of nuts significantly improved sperm measures directly related to male fertility.
The Global Challenge of Infertility
Infertility is a major global health issue, defined as inability to conceive within one year without contraception. It affects couples' social, economic, and psychological well-being and is associated with parental age, nutritional status, clinical health conditions, and inherited hormonal disorders.
Worldwide, infertility affects about 8%-12% of adults of reproductive age, defined here as 18-49. Rates are rising in less developed and developing countries and reach or exceed 30% in some areas. Despite advances in research, the cause remains undiagnosed in 10%-15% of cases, and many patients rely on costly assisted reproductive technology (ART).
Nuts and Fertility
Nuts are rich in protein, fiber, minerals, vitamins, and bioactive compounds that may support fertility. Their omega-3 and omega-6 fatty-acid profile and low saturated-fat content may help reduce several chronic conditions related to cardiovascular and mental health. Nuts may therefore be a useful dietary addition for people with poor-quality diets, such as a Western diet.
Methods
This systematic review and meta-analysis followed PRISMA guidelines. Researchers searched four databases through June 30, 2023. Eligible studies included cross-sectional, cohort, case-control, or randomized controlled trials (RCTs) involving people ages 18-49 and lasting at least three months.
Analysis showed that nut intake improved sperm vitality, motility, and morphology, with significant improvements among men who ate 60 grams daily. There is not yet enough evidence that nuts have a clear effect on female fertility, and more research is needed.
Conclusion
The study identified nut intake as a simple dietary intervention that may improve male fertility, particularly for people with poor-quality diets. The authors called for further research on female fertility and recommended that dietary guidance be considered only when stronger evidence is available.
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