Pages tagged with "Fertility and sperm"

150 pages, most important first (overviews, then meta-analyses, then RCTs, then newest). Combine with another topic

• Overview Women and Vitamin D
• Overview Pregnancy and vitamin D
• In vitro fertilization and Vitamin D – many studies
• Erectile Dysfunction and vitamin D - many studies
• Fertility problem (PCOS) reduced by vitamin D, etc. - many studies
• IVF 4X more successful for white women with lots of vitamin D – many studies
• Omega-3 helps conception as well as pregnancy – many studies
• Fertility is a function of vitamin D around each egg (follicular fluid) – many studies
• Fertility of defrosted sperm better if had increased dietary Omega-3 – many studies
• Total Testosterone increased if take more than 4,000 IU vitamin D daily – meta-analysis
• Testosterone meta-analysis (not give vitamin D for long enough or gave to unhealthy persons)
• Fertility was not improved in men when Vitamin D was only given for a few months - meta-analysis - April 2026
• Fertility improvement -Vitamin D is the best supplement - meta-analysis
• In vitro fertilization not helped by vitamin D if ignore high levels and male levels – meta
• Women have conception problems when vitamin D levels are less than 24 ng – meta-analysis
• Infertile patients 1.7X more-likely to become pregnant if take Vitamin D – meta-analysis
• Live birth 1.7 X more likely after IVF if good level of vitamin D – meta-analysis
• Fertility (sperm) associated with vitamin D – meta-analysis
• IVF 50 percent more likely to result in pregnancy if high vitamin D – meta-analysis
• Global sperm count dropped by 59 percent in 40 years – meta-analysis
• In vitro fertilization NOT helped by 600,000 IU of vitamin D – RCT
• Birth rates doubled with Vitamin D - 300,000 IU for infertile men – RCT
• Sexual dysfunction treated by 300,000 IU of Vitamin D – RCT
• Sperm not improved enough by Vitamin D - 50,000 IU weekly for 8 weeks - RCT
• Fertility marker (Anti-Müllerian Hormone) improved in a week by a single dose to 50,000 IU of vitamin D – RCT
• Testosterone increased 20 percent with daily 3332 IU vitamin D – RCT
• PCBs increased the chance of being Vitamin D deficient by 3 percent
• The more polystyrene microplastics, the worse the fertility (rats)
• Ensure a healthy pregnancy and baby - take Vitamin D before conception
• Infertility is also associated with poor Vitamin D Binding Protein
• Premature ejaculation associated with low vitamin D – 2018, 2019
• Reproduction function in males improved by vitamin D – review
• Pilot study found plastic detox restored fertility in 3 months
• In Vitro Fertilization clinical trial using 50,000 IU of Vitamin D bi-weekly
• Birth rates are declining: 7 of the top 15 reasons are low Vitamin D
• Infertility Clinics in Japan: 89% of women had low Vitamin D
• IVF not helped when Vitamin D is given only a few times
• Glutathione benefits \"virtually every physiological system\"
• Vitamin D increases male sexual health and decreases erectile disfunction
• Fertility and sperm
• Vitamin D in Disease Prevention and Cure-Part I - India
• Toxoplasma gondii parasite (from cats) decapitates sperm and causes pregnancy complications (Vitamin D fights it)
• Best fertility if high level of vitamin D 3 months before ejaculation
• Perhaps increased need for IVF if poor vitamin D receptor
• Higher sperm count associated with both longer life and higher Vitamin D
• Infertility is a Chronic Health Condition - WHO
• Women were 50X more likely to be fertile if just 1 ng higher level of vitamin D
• Conception 1.5 X more likely if taking any amount of Omega-3
• PCOS (polycystic ovary syndrome) 4 times more likely if poor Vitamin D Receptor
• 90% in US have chlormequat chloride (pesticide) in urine – reduces fertility
• 3X more pregnancies when Vitamin D levels are high (assisted reproduction, women only)
• In vitro Fertilization not helped if Vitamin D is slightly above 30 ng (need 50 ng)
• Embryo implantation for mice helped by Vitamin D, should help women
• Weight loss drugs increase unplanned pregnancies (perhaps due to Vitamin D)
• Higher vitamin D results in 22% fewer abnormal sperm (Mendelian analysis)
• Vitamin D associated with 60 percent better assisted reproduction success
• Infertility - 71 percent of the time of BOTH partners had less than 20 ng of Vitamin D
• Vitamin D is needed for human fertility – goal is 50 ng
• More fertility associated with higher vitamin D
• Vitamin D improves Infertility in 9 ways (50 references, PDF behind paywall)
• Infertility not associated with vitamin D (virtually none had more than 30 ng)
• Infertile women have low vitamin D
• If diagnosed infertile, more likely to have live birth if Vitamin D fortification
• Infertility risk increased 2.5 X by poor Vitamin D Receptor
• Hypothesis – Fatigue the day after sex is due to deficiency of Vitamin D, Magnesium, and Zinc
• Infertile women had less Vitamin D (Baghdad in this case)
• Women had better sexual desire, orgasm and satisfaction after Vitamin D supplementation
• Unknown cause (idopathic) for male Infertility appears to be low vitamin D (9 X)
• PCOS also fought by Magnesium combinations – review
• Conception was 3.7X more likely if the male had a good level of Vitamin D
• Better sperm associated with higher vitamin D (again)
• Far better sperm in fertility clinic if more than 30 ng of Vitamin D
• In vitro fertilization is more successful when vitamin D in ovaries, not just blood, is increased
• Vitamin D levels in cells, not blood, is important (IVF follicular fluid in this case)
• More surviving offspring if mother had high vitamin D (sheep in this case)
• Vitamin D2 improved sexual hormones, erectile function etc
• Better sperm if have higher level of vitamin D
• Vitamin D somewhat assists reproduction – both the mother and the father
• Pregnancy loss 9X more likely if male had less than 20 ng of Vitamin D
• Male Infertility is associated with poor Vitamin D Receptor
• Poor male fertility is association with poor Vitamin D Receptor (less D to the cells)
• Vitamin D and Male Fertility Review
• Low Vitamin D decreases fertility and increases subsequent autism, ADHD, etc
• In-vitro Fertilization costs at least 10,000 dollars, Vitamin D costs 5 dollars
• Unexplained infertility 4X more likely if poor vitamin D receptor
• How 60 ng of vitamin D enabled pregnancy - a personal story
• Male fertility is improved in many ways by vitamin D
• Assisted Reproduction – 5 studies concluded vitamin D repletion helps – Review
• Infertility treatment needs to achieve at least 30 ng of vitamin D
• Fertility of men and women reduced by obesity and low vitamin D (perhaps synergistically)
• Boys who were born Small for Gestational age are 1.9X more likely to be infertile
• Conception within 6 months 3X more likely if high vitamin D
• Women with more than minimum vitamin D were 3.4 X more likely to achieve pregnancy and 1.6 X more likely to have live births
• Male fertility 4 X higher if high Vitamin D
• Poor ovarian response (poor IVF) associated with low vitamin D
• Infertility rate is 2X higher for blacks than whites (no mention of vitamin D, nor the man)
• Vitamin D and Human Reproduction – 51 page chapter
• Fertility in both women and men improves with more vitamin D (but less than 50 ng for men)
• IVF 60 percent more successful if woman had sufficient vitamin D
• Fertility and Vitamin D – several articles
• Natural pregnancy 4X more likely if sperm had a lot of CYP24A1
• Infertile women 10 percent more likely to die (perhaps due disease associated with low vitamin D
• Perhaps vitamin D reduces DNA fragmentation of sperm – 2021
• Vitamin D protects against many types of health problems – review
• The role of vitamin D in male fertility, A focus on the testis
• Vitamin D - Effects on Human Reproduction, Pregnancy, and Fetal Well-being
• Preconception vitamin D is great - every extra 10 ng associated with 10 percent more likely to have live birth
• The earlier the better- preconception vitamin D
• Higher vitamin D and 2X higher testosterone in summer than winter
• Better erection associated with better Vitamin D
• Many fertilization and pregnancy problems associated with low vitamin D in Saudi Arabia
• 130% more piglets after giving gilt Calcidiol, a form of vitamin D
• Poor fertility in both women and men associated with low vitamin D – review
• Fertility improved with vitamin D supplement, unsure if low D causes low fertility
• Vitamin D and fertility and birth problems with dark skin
• Testosterone levels increased after vitamin D supplementation (342 from 320)
• Increased Testosterone and Erectile function, decreased weight with Vitamin D
• Association between vitamin D and sperm parameters: Clinical evidence
• Women with PCOS 4 X more likely to develop T2 Diabetes (no surprise, both associated with low vitamin D)
• Testosterone 14% higher in those with high vitamin D
• Gonad hormone is associated with vitamin D level in adults
• Vitamin D and aspects of female fertility (especially PCOS)
• The Role of Vitamin D in Reproductive Health—A Trojan Horse or the Golden Fleece – 2015
• Sexual frequency down 20 percent in 20 years (decreased vitamin D not mentioned)
• Pregnancy success increased 30 percent if sunny (or vitamin D) one month earlier
• Many fertility disorders associated with low vitamin D, still unsure how much is needed
• Low testosterone is associated with levels higher than 40 ng of vitamin D (U-shaped)
• Epileptics have problems with conception
• Poor female sexual function associated with low vitamin D in pilot study
• Vitamin D - roles in women's reproductive health
• Testosterone levels related to vitamin D levels up to 30 ng
• Vitamin D, athletes, hormones
• Conception and vitamin D
• Male infertility associated with low vitamin D levels
• Vitamin D and fertility: a systematic review
• Hypothesis: increased vitamin D will increase erections and decrease CVD
• Testosterone, vitamin D and inflammation
• Low fertility associated with low Calcium intake and low vitamin D
• Increased fertility (ovarian reserve, FSH) associated with higher levels of vitamin D
• Vitamin D and pregnancy – review
• Vitamin D and fertility – Lerchbaum 2012, 2014
• High Testosterone is associated with higher vitamin D in soldiers
• Semen worse when vitamin D lower than 20 or higher than 50 ng
• In Vitro Fertilization (D5 SET ICSI) 40 percent more successful if high vitamin D
• Clinical Trial vitamin D levels and IVF success
• Feel sexier with vitamin D and-or sunshine
• Swine with extra vitamin D more likely to get pregnant and have more and larger piglets
• Off topic - the cost of being female
• More vitamin D associated with better sperm
• Vitamin D deficiency and pregnancy - from preconception to birth