Articles tagged with Vitamin D
A large multiethnic population study found that low vitamin D levels are associated with increased coronary heart disease events among white and Chinese participants but not black or Hispanic participants. The findings suggest that the risks and benefits of vitamin D supplementation should be evaluated carefully across race and ethnicity.
Research shows that almost all children with congenital heart disease have low Vitamin D levels before and after surgery. Children with lower post-operative Vitamin D levels require more life-sustaining therapies and stay in the ICU longer.
A large analysis of the Women's Health Initiative trial found that combining hormone therapy with calcium and vitamin D supplements significantly reduces the risk of hip fractures. The study suggests that women taking postmenopausal hormone therapy should consider taking these supplements to boost bone health.
A pilot study found that vitamin D supplementation significantly lowered blood pressure and improved moods in women with type 2 diabetes and symptoms of depression. Vitamin D also helped the women lose weight. The study suggests that vitamin D supplementation may be a valuable treatment option for these women.
Researchers measured vitamin D levels in the US population and found they peak in August and trough in February. This seasonal variation may help explain the role of vitamin D in seasonal illnesses such as the flu.
A study published in the Journal of Clinical Endocrinology & Metabolism found that probiotic Lactobacillus reuteri NCIMB 30242 increased circulating vitamin D levels by 25.5 percent in hypercholesterolemic adults over a nine-week intervention.
Researchers at Loyola University Chicago will study whether vitamin D supplementation can improve mood and blood pressure in women with Type 2 diabetes and symptoms of depression. The six-month study aims to explore the potential benefits of vitamin D as an antidepressant therapy.
Researchers found that vitamin D deficiency is linked to early onset of puberty in girls, with 44% having severe deficiencies. Vitamin D supplementation may help delay pubertal onset and progression.
A new study suggests that vitamin D deficiency may play a role in the increased allergy and asthma risk in overweight and obese adolescents. Researchers found significant correlations between the severity of obesity, adipokine levels, and biochemical measures of allergic disease.
A large-scale genetic study found a significant link between high vitamin D levels and reduced blood pressure, reducing the risk of hypertension. The researchers used genetic variants as proxy markers for vitamin D status to test for causality, providing strong evidence for the potential prevention of cardiovascular disease through vit...
Researchers found a strong association between low vitamin D levels and high HBV replication in patients with chronic HBV. The study suggests that vitamin D may help control HBV levels and proposes further investigation of its therapeutic potential.
A new osteoporosis treatment has shown promise in improving bone density in young people with cystic fibrosis, who often struggle with low bone mass despite standard treatments. The drug, bisphosphonates, has been found to significantly increase bone mineral density and reduce the risk of fractures in these patients.
A study published in the Journal of Clinical Endocrinology & Metabolism found that taking calcium supplements up to 1,000 mg per day can lower the risk of death in women. The research, conducted on 9,033 Canadians over 12 years, showed no benefit for men and no conclusive evidence that vitamin D has an impact on mortality.
A recent study found that calcium supplements, especially those containing up to 1,000 mg per day, can lower the risk of death among women. The benefit was seen regardless of whether the supplement contained vitamin D.
A new study finds that preterm infants require a daily dose of 800 IU of vitamin D3 to reduce the risk of vitamin D insufficiency. Higher doses led to better bone mineralization, but excess levels caused no major effects.
New research from Johns Hopkins finds that high doses of vitamin D supplements do not confer additional benefits on cardiovascular health or longevity in healthy adults. However, elderly individuals, postmenopausal women, and those with kidney disease may still benefit from higher blood levels of the sunshine vitamin.
A study found that no vitamin D dosage maintained plasma concentrations within the recommended range by pediatric societies, but all dosages raised levels within a lower range. The 1,600-IU/d dosage was discontinued due to elevated plasma 25(OH)D concentrations, indicating the need for further studies on optimal dosages.
A University of Eastern Finland study found that low serum vitamin D levels are a significant risk factor for pneumonia. The risk was more than 2.5 times higher in individuals with the lowest vitamin D levels compared to those with high levels, particularly among older adults and smokers.
A new study by McGill University confirms that a daily dose of 400 IU vitamin D is sufficient for infants under 1 year of age. The research followed 132 infants and found no additional benefits from higher doses.
A study of 422,000 people found that the safe range of vitamin D levels lies between 20 to 36 ng/mL. Vitamin D deficiency was linked to increased risk of acute coronary morbidity or mortality, while elevated levels above 36 ng/mL were associated with a slightly higher risk.
Scientists at the Salk Institute have discovered that a synthetic form of vitamin D can deactivate the switch governing fibrotic response in mouse liver cells, suggesting a potential new therapy for fibrotic diseases. This finding could lead to the development of a safer and more effective treatment for liver fibrosis.
Researchers discovered that eating mushrooms containing vitamin D2 can effectively increase and maintain vitamin D levels in healthy adults. The study found that mushroom powder was as effective as taking supplemental vitamin D2 or vitamin D3.
Researchers from Boston University School of Medicine discovered that eating mushrooms containing Vitamin D2 can increase and maintain vitamin D levels comparable to taking supplements. The study found that ingesting mushroom powder containing Vitamin D2 was as effective in raising and maintaining healthy adults' vitamin D status.
Women with sufficient vitamin D levels had a 32% lower risk of developing fibroids, according to the NIH study. The research also found that spending more time outdoors was associated with a decreased risk of fibroids.
A study published in JAMA Neurology found that the month of birth affects immune system development and the risk of developing multiple sclerosis (MS) in UK babies. Vitamin D levels were significantly lower in May-born babies compared to November-born babies, while autoreactive T-cells were higher.
A study from Newcastle University found that vitamin D supplements improve muscle efficiency in patients with severe deficiency, leading to reduced fatigue and improved mitochondrial oxidative function. The research suggests a link between vitamin D and mitochondrial function, potentially offering a new way to boost energy levels.
A study found that low vitamin D levels at three months post-transplantation were associated with lower kidney function and increased scarring at one year. Vitamin D deficiency is common in patients with kidney failure. Maintaining normal vitamin D levels may prevent renal function deterioration after transplantation.
Researchers found that vitamin D supplements can help control blood-sugar levels in obese youths, potentially staving off Type 2 diabetes. The study, published in the American Journal of Clinical Nutrition, showed a significant decrease in insulin levels despite no changes in body weight or activity.
A recent study found that vitamin D levels in the blood are linked to improved lung function in adults. The study also discovered that people with a history of tuberculosis had lower vitamin D levels, which improved when levels rose.
Research found a significant association between low levels of 5-OH vitamin D and increased risk of gestational diabetes, preeclampsia, and small for gestational age births. Vitamin D insufficiency is common during pregnancy, especially among high-risk women.
A study published in PLOS ONE found that vitamin D supplements improved gene expression related to cancer, autoimmune diseases, and cardiovascular disease. The researchers observed significant alterations in the activity of 291 genes, with biologic functions associated with 160 biologic pathways linked to these diseases.
A new study published at the American Academy of Orthopaedic Surgeons (AAOS) meeting found that living in a sunny climate does not improve vitamin D levels in patients with hip fractures. The majority of patients with hip fractures had insufficient or deficient levels of vitamin D, regardless of their geographical location.
A large observational study found no significant association between maternal vitamin D levels and children's bone mineral content, suggesting that UK guidelines for vitamin D supplementation during pregnancy may be overstated.
A new study from Brigham and Women's Hospital found that vitamin D supplementation can help reduce systolic blood pressure in African-American adults. The study showed modest but significant gains, suggesting that widespread use of vitamin D supplementation could have substantial public health benefits for this demographic.
A study by the Helmholtz Centre for Environmental Research found a link between high vitamin D levels in expectant mothers and increased infant allergy risks. Mothers with low vitamin D levels had fewer food allergies in their children, while those with high levels had higher risks.
The US Preventive Services Task Force recommends against daily supplementation with vitamin D ≤ 400 IU and calcium ≤ 1,000 mg for fracture prevention in postmenopausal women. Daily supplementation has no net benefit and increases the risk of kidney stones, according to a systematic evidence review.
As people move more often and become more urbanized, their skin color may lose its evolutionary advantage. With limited exposure to sunlight in cities, many people are at risk of a vitamin D catastrophe. Using vitamin D supplements is the safest way to address this issue.
Researchers found that African-American and Caucasian women absorb and metabolize vitamin D at the same rate. Vitamin D deficiency can cause abnormalities in calcium, phosphorus, and bone metabolism, leading to conditions like osteomalacia and muscle weakness.
A Kaiser Permanente analysis found significant variation in vitamin D potency among supplements, with some products containing up to 146% more or less than listed values. The study suggests that consumers may not be getting the expected amount of vitamin D from their supplements.
A recent study published in PLOS Medicine found a strong association between obesity and vitamin D deficiency. The research, led by Dr Elina Hypponen, used genetic markers to explore the link between body mass index (BMI) and genes associated with vitamin D synthesis and metabolism.
Researchers found that white, non-Hispanic young adults with higher serum levels of vitamin D had about half the risk of developing Type 1 diabetes than those with lower levels. The study suggests that inadequate vitamin D intake may be an important risk factor for autoimmune diseases.
A prospective study of 1,200 healthy women found that low serum vitamin D levels before diagnosis increased the risk of premenopausal breast cancer. Women with low vitamin D levels had approximately three times the risk of breast cancer as those in the highest vitamin D group.
Researchers at Saint Louis University have discovered a molecular pathway contributing to triple-negative breast cancer and identified vitamin D as a possible new therapy. They also found three biomarkers to identify patients who could benefit from treatment, which may lead to less toxic therapeutic strategies.
A new review by the International Osteoporosis Foundation's Nutrition Working Group highlights the importance of protein intake (1.0-1.2 g/kg body weight) and vitamin D supplementation for maintaining muscle mass and strength in seniors. The review also suggests avoiding dietary acid loads and incorporating more fruits and vegetables i...
A new study reveals that vitamin D supplementation and cow's milk consumption are key factors in determining children's vitamin D levels, surpassing skin color and sun exposure. The research, conducted at St. Michael's Hospital, found that 57% of children took a daily vitamin D supplement.
A study of 146 patients with symptomatic knee osteoarthritis found that vitamin D supplementation did not significantly reduce knee pain or cartilage volume loss over a two-year period. The researchers also noted that serum levels of 25-hydroxyvitamin D increased in both the treatment and placebo groups.
A new Northwestern Medicine study found that obese mothers pass on insufficient vitamin D to their babies, leading to lower levels in newborns. The study also suggests that obese women may need increased vitamin D supplementation to provide sufficient levels for their babies during pregnancy.
Women deficient in vitamin D early in pregnancy are more likely to deliver babies with lower birth weights. Maternal vitamin D deficiency may impact fetal growth by reducing calcium absorption and glucose production, leading to a higher risk of small for gestational age births.
A new study published in Pediatrics found that two cups of cow's milk per day is sufficient to maintain adequate vitamin D levels and iron stores in most children. Drinking more than two cups resulted in lower iron stores without additional benefits for vitamin D.
A study found a significant correlation between excessive daytime sleepiness and vitamin D levels, with higher levels associated with increased sleepiness in black patients. Vitamin D deficiency was linked to reduced sleepiness in this group.
A new study published in BMJ Open found that high-dose vitamin D supplementation reduced symptoms of respiratory tract infection by almost a quarter and antibiotic use by nearly half in patients with frequent infections. However, the treatment had no significant impact on otherwise healthy individuals.
A recent study published in the Journal of Clinical Endocrinology & Metabolism found that a mother's vitamin D level is positively related to birth weight and head circumference. Additionally, a deficiency in vitamin D during the first trimester was negatively associated with the risk of a baby being born small for gestational age.
A study found that age drives molecular changes in genes, but diet can modulate these effects. Selenium and vitamin D reduced accumulation of epigenetic changes, while high blood folate and obesity increased them.
A genetic variation in the vitamin D receptor has been linked to a decreased risk of developing osteoporosis, according to a meta-analysis of 26 studies. The study suggests that individuals with this variation may have a significantly lower risk of bone mineral density loss.
A review of existing studies found vitamin D associated with a significant reduction in tooth decay incidence in children. The findings support the importance of vitamin D for dental health and suggest a potential preventive role.
Researchers at McGill University discovered vitamin D's molecular basis for potential cancer prevention effects. Vitamin D inhibits cMYC production and function, slowing cell proliferation and potentially slowing cancer progression.
A study found that pregnant women with higher levels of vitamin D in their blood had a 61% lower risk of developing multiple sclerosis, compared to those with low levels. However, the mother's vitamin D level did not affect her child's risk of developing MS.
A six-year study found a correlation between vitamin D3 serum levels and subsequent incidence of Type 1 diabetes, suggesting a preventive role for vitamin D3 in this disease. Researchers estimate that achieving an optimal serum level of 25(OH)D at 50 ng/ml can lower the risk of developing type 1 diabetes by half.
Research found that people with diabetes who have adequate vitamin D are less likely to develop clogged arteries. In contrast, insufficient vitamin D leads to immune cells binding to blood vessels and trapping cholesterol.
According to new Institute of Medicine guidelines, almost all Americans with healthy kidneys will have sufficient vitamin D levels if their blood levels are above 20 ng/ml. This translates to approximately 78.7 million adults who previously required supplementation no longer needing it.