Cureus2026n = 100
Cross SectionalHuman
This study looked at how different measures of obesity relate to semen quality in men from infertile couples who had no other known fertility risks. It compared body mass index…
Archives of medical research2026n = 3,302
Cross SectionalHuman
This study set out to explore how coffee, exercise, and sleep relate to semen quality in men. It surveyed 3,302 men aged 18-60, collecting semen samples and lifestyle data through…
Asian journal of andrology2026n = 3336
Cross SectionalHuman
This study set out to examine how modifiable lifestyle factors like smoking, drinking, and weight affect semen quality in men. It analyzed data from over 3,300 men visiting a fertility…
Cureus2026n = 4,389 eligible out of 4,601 screened
Cross SectionalHuman
This study set out to see if taking oral medications or zinc supplements affects zinc levels in the blood and whether that links to better sperm health or fertility outcomes…
Frontiers in microbiology2026n = 80 semen samples
Cross SectionalHuman
This study set out to explore whether the mix of bacteria in semen differs between men with normal and abnormal sperm counts. Researchers analyzed semen samples from 80 Greek men,…
Scientific reports2026n = 98
Cross SectionalHuman
This study set out to understand how folic acid affects sperm health, especially in the context of inflammation in the reproductive tract. It looked at 98 men, measuring their red…
Reproductive biomedicine online2026n = 324
Cross SectionalHuman
This study set out to see if physical fitness is linked to semen quality in Spanish men. Researchers analyzed semen samples from 324 men without known fertility issues, comparing self-reported…
Scientific reports2026n = 156
Cross SectionalHuman
This study aimed to assess how much adult men know about male fertility, focusing on medical and lifestyle factors that affect it. Researchers surveyed 156 men of reproductive age using…
American journal of men's health2026n = 485
Cross SectionalHuman
This study looked at how occupational heat exposure and fertility-related stress might affect semen quality. It compared 485 men, split into groups with normal and low semen quality based on…
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…
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…
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…
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 = 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…
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,…
Journal of clinical medicine2024n = 73
Cross SectionalHuman
This study set out to see how lifestyle and insulin resistance relate to male fertility. Insulin resistance means the body has stopped responding properly to insulin, so it takes more…
European journal of obstetrics, gynecology, and reproductive biology2024n = 274
Cross SectionalHuman
This study looked at whether following a Mediterranean diet is linked to better semen quality in men visiting fertility clinics. It compared semen parameters across 274 men grouped by how…
Nutrients2023n = 300
Cross SectionalHuman
This study looked at whether following a Mediterranean diet (MD) is linked to healthier sperm in men. Researchers surveyed 300 men (average age 35) visiting a reproductive medicine center, using…