Articles tagged with Vitamin D
Researchers found that a combination of exercise and cognitive training significantly improved cognition in adults with mild cognitive impairment. Vitamin D supplementation had no impact on cognitive function.
A large clinical trial found that monthly vitamin D supplements reduced the risk of major cardiovascular events such as heart attacks by 9% in older adults. The study involved over 21,000 Australians aged 60-84 and showed a significant reduction in heart attack rates, but no difference in stroke rates.
A five-year study found that taking higher-than-recommended doses of vitamin D reduced the risk of atrial fibrillation by 27-32% in older men and women. The Finnish Vitamin D Trial involved 2,495 participants who received either a placebo or vitamin D supplementation, with lower risks observed in those taking higher doses.
A new study published in JAMA Neurology suggests that multiple sclerosis is more prevalent in Black Americans than once thought, with the disease also affecting Northern regions of the US. The study's findings have significant implications for public policy and resource allocation towards historically under-represented populations.
Researchers discovered vitamin D's role in regulating dopaminergic neuron differentiation and function. The study found that vitamin D alters developing neurons in the brain's dopamine circuit.
A new study has defined analytical performance specifications for 24,25-dihydroxyvitamin D examinations, which is essential for developing accurate methods to detect this metabolite. The findings show that the variation of 24,25(OH)2D concentration over time was significantly associated with 25(OH)D concentrations and body mass index.
Research finds that low vitamin D levels are associated with an increased risk of developing long COVID syndrome in patients who have previously contracted COVID-19. The study suggests that individuals with low vitamin D levels should have their levels checked after recovering from COVID-19.
A systematic review of 14 high-quality studies found that daily vitamin D3 supplementation was associated with a 12% reduction in cancer mortality. Vitamin D deficiency is widespread, particularly among cancer patients, and regular intake at low doses may help prevent cancer deaths.
Research suggests that patients with advanced melanoma who receive immunotherapy medications may benefit from maintaining normal vitamin D levels. The study found a favorable response rate in 56% of patients with normal baseline vitamin D levels, compared to 36% with low levels.
A study found that sleeve gastrectomy decreases bone mineral density and strength in adolescents and young adults. Participants who underwent weight loss surgery lost significant amounts of weight and experienced reductions in abdominal fat tissue and muscle mass.
A diet high in fruit and vegetables is associated with a lower miscarriage risk, with significant reductions seen for each food group. The meta-analysis of 20 studies found that consuming high amounts of fruit may reduce the risk by up to 61%, while high vegetable intake is linked to a 41% reduction.
A study published in Cancer Research Communications found that vitamin D receptor genetic differences in African American men may make them more vulnerable to prostate cancer. The researchers suggest that revised nutritional guidelines for vitamin D intake may be necessary to address these disparities.
Researchers found that vitamin D deficiency prevalence ranged between 29-37% among active duty Navy military personnel, with higher rates among submariners. Periodic assessment and supplementation may be necessary to address the issue.
A new study from Trinity College Dublin identifies groups most at risk of vitamin D deficiency, including those with dark skin and low intakes. The research highlights the need for better awareness and promotion of adequate vitamin D intake through foods and supplements.
A systematic review found that higher vitamin D intake was associated with a 15% decreased likelihood of developing type 2 diabetes in adults with prediabetes. Inexpensive vitamin D supplementation could delay the development of diabetes in over 10 million people worldwide.
An updated Cochrane review found no effect of vitamin D supplements on reducing the risk of asthma attacks or improving control of asthma symptoms in children and adults. The review analyzed data from 20 randomized controlled trials involving over 2,200 people with mild to moderate asthma.
A large cohort study found that vitamin D supplementation is associated with a reduced risk of suicide attempts among US veterans. The study highlights the importance of vitamin D levels and supplementation in preventing suicidal behaviors, particularly among Black veterans and those with pre-existing low vitamin D.
Researchers have solved an 80-year-old medical mystery that causes kidney damage in children and can be fatal in babies. They discovered a gene mutation is the primary cause, but found that around 10% of patients without the mutation still experience symptoms.
A retrospective study found associations between vitamin D levels and fine motor development delays, as well as thyroid hormones with cognitive development. Certain metals were also linked to language, cognitive, or motor skill development.
Researchers analyzed data from the VITAL trial and found that vitamin D supplementation increased biomarkers associated with vitamin D metabolism in people, regardless of their weight. However, these increases were significantly smaller in people with elevated BMIs, suggesting a blunted response to supplementation.
Regular use of vitamin D supplements was associated with a significantly reduced risk of melanoma and better skin cancer classification compared to non-users. However, the study did not find a significant association between vitamin D use and other skin changes or severity of photoaging.
Researchers found that vitamin D strengthens immune cells' ability to fight tuberculosis by producing cathelicidin toxin. Vitamin D treatment can prevent and treat the disease, particularly in populations exposed to high risk of infection. However, supplements do not protect against infection with tuberculosis.
Researchers identified several characteristics increasing risk of infection, while others decreased it. Strict adherence to mask-wearing and vitamin D consumption provided significant protection against COVID-19.
A recent study by Universitat Oberta de Catalunya reveals that Spanish citizens have lower vitamin D levels compared to Northern European nations. Despite the importance of this hormone for overall health, supplementation is not commonly practiced in Spain.
Researchers found that vitamin D deficiency increases the risk of dynapenia, an age-associated loss of muscle strength, by 70-78%. Vitamin D supplementation was shown to reduce this risk. The study analyzed data from over 3,000 individuals aged 50 and over, highlighting the importance of vitamin D for maintaining muscle strength.
A new American Heart Association scientific statement highlights the potential benefits and risks of complementary and alternative therapies for heart failure. The statement advises healthcare professionals to discuss CAM use with patients, monitor medication interactions, and consider pharmacists' consultations.
A study published by Tufts University has found a link between higher levels of vitamin D in brain tissue and improved cognitive function in adults. The research, which analyzed brain tissue from over 200 participants, suggests that vitamin D may play a role in protecting the aging brain against diseases such as Alzheimer's.
A randomized clinical trial of 8,800 school-age children with high vitamin D deficiency showed no impact on growth or pubertal development after 3 years of weekly oral vitamin D administration. Vitamin D deficiency is associated with stunting and obesity in children.
A new study from Northwestern University found that vitamin D supplements do not significantly reduce statin-associated muscle symptoms, contradicting previous non-randomized studies. The trial involved 2,083 participants and was the first placebo-controlled, randomized clinical trial to examine this effect.
A new study from the University of South Australia found that severe vitamin D deficiency is associated with a higher risk of mortality. The research evaluated 307,601 records from the UK Biobank and found that individuals with low vitamin D levels had a significantly decreased risk of death over a 14-year follow-up period.
The American College of Physicians (ACP) releases a position paper emphasizing the need for policy actions to address climate change, reduce hazardous substance exposure, and promote environmental justice. ACP calls for immediate action to limit global temperature rise and comprehensive efforts to achieve environmental justice.
Researchers analyzed data from over 25,000 US adults in a clinical trial and found that vitamin D3 and omega-3 fatty acid supplementation had no effect on frailty scores. Healthy lifestyle habits such as regular exercise and the Mediterranean diet are recommended for preventing frailty instead.
Two large clinical trials found that vitamin D supplements did not reduce the risk of covid-19 or acute respiratory infections, contradicting previous studies' mixed results. The trials involved over 30,000 adults and showed no effect of vitamin D supplementation on infection rates or side effects.
A recent study has found that vitamin D deficiency is associated with lower overall survival rates in melanoma patients. The research, presented at the European Academy of Dermatology and Venereology Congress, suggests that vitamin D levels play a significant role in determining patient outcomes.
A new study found that pregnant women taking fish oil and vitamin D supplements had a lower risk of their children developing croup. Children whose mothers took the supplements had an 11% risk of croup compared to those who did not take them, with a significant decrease in risk.
A new study found a correlation between colder temperatures and northern regions in the US and an increased risk of diabetes diagnoses in dogs. Diabetes diagnoses were more common in winter and in the North compared to other seasons and regions.
A large meta-analysis suggests that vitamin D supplementation may alleviate depressive symptoms in adults with depression. The analysis included 41 studies and found that vitamin D was more effective than a placebo in alleviating symptoms. However, the results were limited by study heterogeneity and risk of bias.
A world-first study reveals a direct link between low vitamin D and high inflammation, providing a biomarker for those at risk of chronic illnesses. Boosting vitamin D in people with deficiencies may reduce chronic inflammation.
A recent study published in The New England Journal of Medicine found that supplemental vitamin D did not lower the risk of fractures in healthy US adults. The research, which involved over 1,991 incident fractures and 5.3 years of follow-up, also showed no effects on major osteoporotic fractures or wrist/pelvic fractures.
A multicenter study found that radiologists can accurately diagnose rickets and classic metaphyseal lesions (CMLs) with high interobserver agreement and diagnostic performance. The study highlighted the importance of considering age factors in diagnosis, as CMLs mostly occur in children younger than 6 months.
A case report highlights the dangers of excessive vitamin D intake, with symptoms including abdominal pain, leg cramps, and kidney abnormalities. Doctors warn that hypervitaminosis D is on the rise and can lead to serious health problems if not taken safely.
A new study published in the British Journal of Dermatology found that taking Vitamin D supplements during pregnancy can substantially reduce the chances of babies developing atopic eczema. Babies who were breastfed for more than a month showed a lower risk of eczema, suggesting that supplementation may have long-lasting benefits.
A University of Houston study found that 61% of Black and Hispanic adolescents have low vitamin D levels, which can lead to cardiovascular disease, certain cancers, type 2 diabetes, and renal disease. The research emphasizes the importance of raising awareness among clinicians about social determinants of health and providing culturall...
A systematic review of 84 studies found insufficient evidence that multivitamins or supplements can prevent cardiovascular disease and cancer in healthy adults. In contrast, diet and exercise are key to maintaining health. Whole fruits and vegetables contain a mixture of vitamins, phytochemicals, fiber, and other nutrients that act syn...
A world-first study from the University of South Australia found a direct link between vitamin D deficiency and increased risk of dementia and stroke. The study analyzed data from 294,514 participants and found that up to 17% of dementia cases might have been avoided by boosting vitamin D levels.
A review of scientific evidence concludes that diet has little impact on the progression of osteoarthritis and rheumatoid arthritis. While a healthy diet brings other health benefits, the impact on these diseases is small and not clinically meaningful.
New research suggests vitamin D can effectively prevent ovarian cancer by restoring the body's natural defenses. The study found that vitamin D counteracts the process of peritoneal metastasis, which allows cancer cells to spread, and strengthens the barrier effect of mesothelial cells.
A large Japanese trial found that daily vitamin D supplements had no clinically meaningful effect on preventing type 2 diabetes in people at high risk of the condition. However, results suggested a potential benefit for those with insufficient insulin secretion, warranting further research.
Researchers have developed gene-edited tomatoes that can produce vitamin D3 through exposure to UVB light. The tomato leaves naturally contain provitamin D3, which accumulates in the fruit after editing. This breakthrough could help millions of people with vitamin D insufficiency and provide a plant-based source of vitamin D3.
Exercise strengthens bones, reduces fracture risk, and improves posture in people with osteoporosis. A consensus statement recommends a balanced routine of muscle strengthening exercises on 2-3 days and moderate impact activities on most days.
A large observational study found that calcium supplements increased the risk of death and cardiovascular disease in older adults with aortic valve stenosis. The study, published in the journal Heart, suggests that long-term continuous calcium supplementation should be avoided for patients with high-risk cardiovascular disease.
A study published by Wiley found that women with low vitamin D levels are more likely to develop breast cancer, particularly among Hispanic/Latina women. The research suggests that sufficient vitamin D may protect against breast cancer, with a 21% lower risk observed in women with adequate levels.
A new study from the University of Georgia found that only about one-third of infants enrolled in WIC meet the daily recommendation for vitamin D by 13 months. Experts recommend increased education and supplementation to address this issue, which can lead to diseases like rickets and Type 1 diabetes.
Researchers at Florida Atlantic University found that increasing sun exposure in rehabilitation facilities can enhance health and recovery in green sea turtles with fibropapillomatosis. Vitamin D levels increased significantly in turtles exposed to higher UV light, leading to less tumor regrowth and improved overall health.
The International Osteoporosis Foundation awarded five young researchers for their groundbreaking work on the role of nutrition in musculoskeletal health. The winners, from Australia, India, and Switzerland, were recognized for their studies on vitamin K1 intake, calcium sources, and dietary inflammatory index.
The placenta plays an active role in transferring vitamin D to the fetus during pregnancy, according to a new study. The research found that the placenta takes up vitamin D through endocytosis, which enables it to deliver this essential nutrient to the developing fetus.
A new review of COVID-19 hospitalization data found no reduction in mortality for patients treated with vitamin D, vitamin C, or zinc. However, treatment with vitamin D may be associated with lower rates of intubation and shorter hospital stays.
A study by Bar-Ilan University and Galilee Medical Center found that vitamin D deficiency is associated with severe COVID-19 cases and high mortality rates. Patients with low vitamin D levels were 14 times more likely to have severe or critical cases than those with normal levels.
Researchers found that vitamin D and/or omega-3 fatty acid supplements significantly lowered the rate of autoimmune diseases like rheumatoid arthritis, polymyalgia rheumatica, and psoriasis. The largest benefit was seen after two years of supplementation with daily doses of vitamin D (2000 IU) and marine omega-3 fatty acids (1000 mg).
A trial of older US adults found that vitamin D and omega-3 fish oil supplements reduced the risk of autoimmune diseases by 22-30% compared to placebo. The effects were more pronounced after two years of supplementation.