Archivos espanoles de urologia2025n = 945 subjects
Meta AnalysisHuman
This study looked at whether vitamin D3 supplementation improves hormone levels and semen quality in infertile men. It pooled data from six randomized controlled trials involving 945 men, measuring changes…
Human reproduction open2025n = 223
Cross SectionalHuman
This study looked at whether a heart-healthy lifestyle is linked to better sperm quality in young men, using the American Heart Association's Life's Essential 8 score. That score rates eight…
Current issues in molecular biology2025
Narrative ReviewHuman
This review set out to examine how heavy metals like lead, mercury, and cadmium affect sperm quality and male fertility, focusing on their role in oxidative stress and antioxidant imbalance.…
Arab journal of urology2025
Narrative ReviewHuman
This narrative review set out to explore how lifestyle choices affect male fertility, examining diet, exercise, stress, sleep, weight, and environmental exposures. It synthesized existing research on how these factors…
Andrology2025n = 200
Cross SectionalHuman
This study looked at how eating patterns relate to sperm quality in healthy young men. Researchers scored the diets of 200 men against several patterns, healthy ones like the Mediterranean…
Reproductive biology and endocrinology : RB&E2025n = 2,430
Cross SectionalHuman
This study looked at whether obesity speeds up the decline in sperm quality that has been seen over time. Researchers reviewed semen tests from 2,430 men with normal sperm counts…
Journal of dietary supplements2025
Narrative ReviewHuman
This review set out to explore how dietary fatty acids (FAs) affect sperm quality and male fertility. It looked at recent studies on how different FAs influence sperm production and…
Nutrients2025n = 106
Cross SectionalHuman
This study looked at whether dietary polyphenols (plant antioxidants found in fruits, vegetables, tea, and olive oil) are linked to semen quality in young men. It analyzed 3-day diet records…
Reproductive biology and endocrinology : RB&E2025n = 1,349
Cross SectionalHuman
This study set out to see how often men ejaculate affects their sperm health, focusing on DNA damage and other semen measures. It looked at 1,349 men visiting a fertility…
Antioxidants (Basel, Switzerland)2025
Narrative ReviewHuman
This review looked at how oxidative stress (cell damage from unstable molecules called reactive oxygen species, a normal byproduct of metabolism that turns harmful when it outpaces the body's defenses)…
Frontiers in endocrinology2025n = 8,443 men (3,467 normal BMI, 3,444 overweight, 1,532 obese)
Meta AnalysisHuman
This meta-analysis (a study that statistically pools many earlier studies) looked at how body mass index (BMI, a weight-for-height number used to flag over- or under-weight) relates to sperm quality…
Metabolites2025
Narrative ReviewHuman
This narrative review set out to explore how oxidative stress (an imbalance between harmful reactive oxygen species and the body's defenses) affects fertility in men and women, and whether dietary…
Nutrients2025n = 225
Cross SectionalHuman
This study set out to explore how trace elements in the blood might relate to testosterone levels and symptoms like low energy, mood issues, and sexual health in young men.…
Oncoscience2025n = 278
Cross SectionalHuman
This study looked at how lifestyle and hormones affect semen quality and sperm DNA health in men. It examined 278 Indian men aged 21 to 50, measuring sperm count, movement,…
Nutrients2025n = 50 studies included
Meta AnalysisHuman
This systematic review and meta-analysis set out to see whether dietary supplements improve male fertility. It pooled 50 randomised trials in which men took a supplement for at least 12…
Arab journal of urology2025
Narrative ReviewHuman
This review set out to examine whether mobile phones and laptops, as sources of electromagnetic radiation and heat, might harm male fertility by affecting semen quality. It analyzed existing studies,…
Nutrients2025n = 358
Cross SectionalHuman
This study looked at how diet relates to sperm quality, comparing the Mediterranean diet, which is built on seasonal, fresh and whole foods, against ultra-processed foods, which are high in…
Frontiers in endocrinology2025n = 2,672 semen samples
CohortHuman
This study asked whether the pandemic changed how sensitive sperm production is to weather. It took 2,672 semen analyses from 1,287 Korean men collected between 2018 and 2024 and matched…
Advances in nutrition (Bethesda, Md.)2025n = 2,558 individuals across 11 studies
Meta AnalysisHuman
This study set out to see if sticking to a Mediterranean diet (MedDiet) is linked to better sperm quality and fertility outcomes in men. It pooled data from 11 studies,…
Current opinion in urology2025
Narrative ReviewHuman
This review gathers recent evidence on what damages male fertility and how much of it can be undone. Smoking raises sperm DNA fragmentation (breaks in the genetic material inside sperm)…
Reproductive biology and endocrinology : RB&E2025n = 18 peer-reviewed articles
Scoping ReviewHuman
This scoping review set out to map the evidence on how psychosocial work factors affect male fertility and sperm quality. It analyzed 18 peer-reviewed studies from 1990 to 2024, focusing…
BMC public health2025n = 1,180
Cross SectionalHuman
This study looked at whether exposure to air pollution, especially fine particles (PM2.5 and PM10), affects semen quality in men. It included 1,180 men aged 18, 45 from Foshan, China,…