Vitamin A Deficiency News and Research

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Vitamin D deficiency affects fertility in women undergoing IVF

Women with a vitamin D deficiency were nearly half as likely to conceive through in vitro fertilization (IVF) as women who had sufficient levels of the vitamin, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.

17 Aug 2014

Vitamin D deficiency linked to higher surgical risk

Patients with low blood levels of vitamin D are at increased risk of death and serious complications after noncardiac surgery, suggests a study in Anesthesia & Analgesia.

16 Aug 2014

Taking daily vitamin D supplement is best way to improve vitamin D levels in the body

Do you currently take a vitamin D supplement? New research says you should. A study conducted by USANA Health Sciences, in conjunction with Intermountain Healthcare's The Orthopedic Specialty Hospital (TOSH), found that taking a daily vitamin D supplement is the best way to improve vitamin D levels in the body.

30 Jul 2014

Researchers examine role of dairy products in preserving bone and skeletal muscle

Understanding that diets are often built around food groups rather than specific nutrients, researchers from Switzerland, France, and North America decided to examine interactions between four nutrients found in dairy products and their role in preserving bone and skeletal muscle.

29 Jul 2014

People with schizophrenia more likely to have low levels of vitamin D

Vitamin D-deficient individuals are twice as likely to be diagnosed with schizophrenia as people who have sufficient levels of the vitamin, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.

23 Jul 2014

Vitamin D may not ward off Type 2 diabetes

Vitamin D supplementation is unlikely to improve glycaemic measures in people with prediabetes, show the findings of a randomised trial.

30 Jun 2014

World's first human trial of pro-vitamin A-enriched bananas to start soon

The world's first human trial of pro-vitamin A-enriched banana, expected to lift the health and well-being of millions of Ugandans and other East Africans will start very soon.

17 Jun 2014

Parathyroid hormone with vitamin D may be needed to assess impact on sugar metabolism

Combined assessment of parathyroid hormone along with vitamin D may be needed to assess the impact of vitamin D status on sugar metabolism, according to Toronto researchers.

30 May 2014

Vitamin D deficiency predicts prostate biopsy outcomes

Men with vitamin D deficiency are more likely than men with normal levels to test positive for prostate cancer on biopsy, and to have aggressive disease, US researchers have found.

28 May 2014

Loyola's pediatric dermatologists highlight risks related to indoor tanning

Prom season is right around the corner and with that comes dress shopping and trips to the local tanning salons for many girls.

21 May 2014

Vitamin B12 shot does not boost energy, metabolism, says study

Feeling sluggish? Gaining weight? What you need is a shot in the arm, claim advertisers for trendy vitamin B12 injections.

14 May 2014

Possible link between aggressive prostate cancer and vitamin D deficiency

Vitamin D deficiency was an indicator of aggressive prostate cancer and spread of the disease in European-American and African-American men who underwent their first prostate biopsy because of abnormal prostate-specific antigen (PSA) and/or digital rectal examination (DRE) test results, according to a study published in Clinical Cancer Research, a journal of the American Association for Cancer Research.

1 May 2014

WHI study shows no significant link between vitamin D levels and menopause symptoms

A new study from the Women's Health Initiative shows no significant connection between vitamin D levels and menopause symptoms. The study was published online today in Menopause, the journal of The North American Menopause Society.

16 Apr 2014

Researchers examine relationship between vitamin D deficiency and cognitive impairment

Vitamin D deficiency and cognitive impairment are common in older adults, but there isn't a lot of conclusive research into whether there's a relationship between the two.

16 Apr 2014

UK study finds link between low vitamin D status and non-alcoholic fatty liver disease in British children

A UK study investigating the link between low vitamin D status and non-alcoholic fatty liver disease (NAFLD) in British children has identified a genetic variant associated with the disease's severity.

15 Apr 2014

Many women and children in Vietnam have vitamin D and calcium deficiency

Many women and children in Vietnam have a vitamin D or calcium insufficiency or deficiency. Unknown until know, this is a public health issue whose magnitude has just been discovered by researchers at the IRD and the National Nutrition Institute of Hanoi.

4 Apr 2014

New research suggests why vitamin D deficiency screening tests have gained more importance

New research from Wake Forest Baptist Medical Center suggests that physicians are ordering vitamin D deficiency screening tests for preventive care purposes rather than after patients develop conditions caused by decreased bone density.

2 Apr 2014

Lower levels of vitamin D predict extent of coronary artery disease

Vitamin D deficiency is an independent risk factor for heart disease with lower levels of vitamin D being associated with a higher presence and severity of coronary artery disease, according to research to be presented at the American College of Cardiology's 63rd Annual Scientific Session.

28 Mar 2014

Loyola study finds fewer children at risk of inadequate or deficient vitamin D levels

Under new guidelines from the Institute of Medicine, the estimated number of children who are at risk for having insufficient or deficient levels of vitamin D is drastically reduced from previous estimates, according to a Loyola University Chicago Stritch School of Medicine study.

26 Mar 2014

Researchers examine effect of vitamin D supplementation on depression

Vitamin D deficiency has been implicated in numerous health conditions in recent years, including depressed mood and major depressive disorder.

19 Mar 2014