Can vitamin D boost fertility?
Given the high prevalence of infertility as well as vitamin D insufficiency in otherwise healthy young women and men and the possible link between vitamin D and human reproduction, is being researched by scientists.
Vitamin D has been well-known for its function in maintaining calcium and phosphorus homeostasis and promoting strong bones and teeth. There is some evidence that in addition to sex steroid hormones, the classic regulators of human reproduction, vitamin D also modulates reproductive processes in women and men. It is well known that Vitamin D peaks in the summer months and drops in the winter months in the Uk and other northern countries that have fewer hours of day light during the winter months. In these northern countries the conception rate is decreased during the dark winter months; it peaks during the summer leading to a maximum birth rate in the spring.
In women with polycystic ovary syndrome (PCOS), low 25-hydroxyvitamin D (25(OH)D) levels are associated with obesity, metabolic, and endocrine disturbances. Polycystic ovary syndrome is a common cause of infertility. Researchers concluded that vitamin D supplementation might improve menstrual frequency and metabolic disturbances in those women.
The same researchers suggested vitamin D might influence steroidogenesis of sex hormones (estradiol and progesterone) in healthy women and high 25(OH)D levels might be associated with endometriosis. In men, vitamin D is positively associated with semen quality and androgen status. Moreover, vitamin D supplementation might increase testosterone levels.
It should be noted that Vitamin D supplementation can’t treat infertility alone, but is a safe and cheap treatment, which has been shown to boost fertility in men and women. In addition there is limited evidence that vitamin D exerts some effects on the outcome of IVF treatment.
Finally vitamin D deficiency among pregnant women has been associated with elevated risk for other pregnancy complications such as preeclampsia and bacterial vaginosis.
References
Rojansky N,Brzezinski A & Schenker JG. Seasonality in human reproduction: an update.Human Reproduction 1992 7 735–745.
E Lerchbaum & B Obermayer-Pietshc, Mechanisms in Enocrinology: Vitamin D and Fertility: A systematic review. Eur J Endocrinol May 1, 2012 166765-778
Bodnar LM, Catov JM, Simhan HN, Holick MF, Powers RW & Roberts JM Maternal vitamin D deficiency increases the risk of preeclampsia. Journal of Clinical Endocrinology and Metabolism2007 92 3517–3522.
Bodnar LM, Krohn MA & Simhan HN . Maternal vitamin D deficiency is associated with bacterial vaginosis in the first trimester of pregnancy. Journal of Nutrition 2009 139 1157–1161
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Action plan for a healthy small intestine
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- Candida
- IBS
- SIBO (small intestinal bacterial overgrowth
- Cut out imflammatory drugs e.g. asprin, paracetamol and avoid alchol.
- Take L-glutamine and butyric acid both of these can help heal the gut, but check with a nutritionalist first as dosage is important.
- Drink slippery elm tea which calms inflamation of the small intestine and helps relieve IBS.
- Up your intake of vitamins A and D - liver is an excellent sourch of these vitamins which protect the mucus membrane of the gut.
- Eat more antibacterial foods such as garlic, honey and sauerkraut which preven the growth of Candida, fungus and yeast infections.
- Take oregano oil (Oregnano Vulgaris) which has been shown to stop Candidan in its tracks.
- Take probiotics daily - look for a count of 50 billion or more in each dose.
- Take prebiotics daily - to feed the probiotics. Or eat food prebiotic foods such as sauerkraut or kimchi.
- Go gluten free. Cut out gluten for an entire week and keep a food diary to check if your symptoms improve.
- Mimosa pudica an ayurvedic herb is brilliant at wiping out parasites.
- Eat more ant-parasitics such as garlic, thyme, chilli, tumeric and ginger.

Natural remedies for the winter blues – Part 2
In part 1, I shared details of supplements that may help alleviat ethe winter blues. In this blog post I want to share other lifestyle tips. 1. Exercise If you suffer from winter blues it is likely that your GP would perscribe a selective serotonin reuptake inhibitor (SSRI). This is the standard drug to treat depression and one of medicines all time bestsellers. Researches compared aerobic exercise aginst the Lustral (SSRI sertaline) foudn that exercise and the drug were equally effective at reducing depressive symptioms. But only exercise had long lasting effects. Of the patients declared free of depression at the end of the study, those who had been in the exercise only-group were less likely to see their depression return during the next 6 months. 2. Eat Fish If you love fish like I do, then science says you are less likely to get depressed. In one study women who ate fish two or more times per week where less likley to get depressed than those who ate fish less often. It is thought the omega-3 fatty acids found in fish are responisble for lifting mood. A number of studies have found that omega-3 supplements have a significant antidepressant effect. 3. St John's Wort A herb commonly used in Germany to treat mild depression. Scientists have established that not only better is the herb better than a placebo its as effective as an antidepressant. References Blumenthal JA, Babyak MA, Moore KA, Craighead WE, Herman S, Khatri P, Waugh R, Napolitano MA, Forman LM, Appelbaum M, Doraiswamy PM, Krishnan KR. Effects of exercise training on older patients with major depression. Arch Intern Med. 1999 Oct 25;159(19):2349-56. Blumenthal JA, Babyak MA, Doraiswamy PM, Watkins L, Hoffman BM, Barbour KA, Herman S, Craighead WE, Brosse AL, Waugh R, Hinderliter A, Sherwood A. Exercise and pharmacotherapy in the treatment of major depressive disorder. Psychosom Med. 2007 Sep-Oct;69(7):587-96. Babyak M, Blumenthal JA, Herman S, Khatri P, Doraiswamy M, Moore K, Craighead WE, Baldewicz TT, Krishnan KR. Exercise treatment for major depression: maintenance of therapeutic benefit at 10 months. Psychosom Med. 2000 Sep-Oct;62(5):633-8.
Lin PY, Su KP. A meta-analytic review of double-blind, placebo-controlled trials of antidepressant efficacy of omega-3 fatty acids. J Clin Psychiatry. 2007 Jul;68(7):1056-61.Vorbach EU, Hübner WD, Arnoldt KH. Effectiveness and tolerance of the hypericum extract LI 160 in comparison with imipramine: randomized double-blind study with 135 outpatients. J Geriatr Psychiatry Neurol. 1994 Oct;7 Suppl 1:S19-23.Wheatley D. LI 160, an extract of St. John's wort, versus amitriptyline in mildly to moderately depressed outpatients--a controlled 6-week clinical trial. Pharmacopsychiatry. 1997 Sep;30 Suppl 2:77-80.
Do your friends impact your health?
In our day to day lives, during the times when we are deciding what to eat or whether to watch TV or take a walk, who is more likely to be around us, our family, friends, flat mates or a doctor? Even for individuals living with a chronic condition who will probably only spend a few hours a year with medical professionals compared to the thousands of waking hours with family and friends. Recently researches discovered that women are more likely to survive breast cancer if they have a strong social network of friends and family, whereas those who are more isolated are twice as likely to die of the disease. University of Pennsylvania have found that good health is more likely if people see fewer doctors and more of their family and friends especially if they get their support and help. They discovered that people are more likely to make healthier choices - like going for a walk over watching TV if they are around family and friends. In addition people are more likely to go to the gym if they have someone to go with. Being part of a group e.g. family, friends, book club, tennis club, social group, religious/spiritual practice seems to aid our motivation to be healthier in terms of diet, exercise, smoking or drinking. This could be because being part of a group enhances your sense of meaning in life, which in turn leads you to better take care of yourself. Or it could be down to feeling a sense of responsibility towards other or even just wanting to fit in. References D A. Asch, and R Rosin, Engineering Social Incentives for Health, N Engl J Med 2016; 375:2511-2513 Kroenke, C. H., Michael, Y. L., Poole, E. M., Kwan, M. L., Nechuta, S., Leas, E., Caan, B. J., Pierce, J., Shu, X.-O., Zheng, Y. and Chen, W. Y. (2017), Postdiagnosis social networks and breast cancer mortality in the After Breast Cancer Pooling Project. Cancer, 123: 1228–1237. doi:10.1002/cncr.30440 Tarrant, M., Warmoth, K., Code, C., Dean, S., Goodwin, V. A., Stein, K., & Sugavanam, T. (2016). Creating psychological connections between intervention recipients: development and focus group evaluation of a group singing session for people with aphasia. BMJ Open, 6(2), e009652.

