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Vitamin D Insufficiency Blog

Low Vitamin D Levels Linked to High Blood Pressure

Posted 28 Jun 2014 by Drugs.com

THURSDAY, June 26, 2014 – Low levels of vitamin D may be a cause of high blood pressure, according to a new study. Previous research has suggested a strong link between low levels of vitamin D and high blood pressure, but a direct cause-and-effect relationship has not been shown. Vitamin D is nicknamed the sunshine vitamin because the body produces vitamin D when exposed to sunlight. People also get vitamin D through foods such as eggs, milk, yogurt, tuna, salmon, cereal and orange juice. In the new study, researchers analyzed genetic data from more than 146,500 people of European descent in Europe and North America. For each 10 percent increase in vitamin D levels, there was an 8 percent decrease in the risk of developing high blood pressure (or "hypertension"). The study was published online June 25 in The Lancet Diabetes & Endocrinology. "In view of the costs and side effects ... Read more

Related support groups: High Blood Pressure, Hypertension, Vitamin D Deficiency, Vitamin D Insufficiency

Vitamin D: A Key to a Longer Life?

Posted 17 Jun 2014 by Drugs.com

TUESDAY, June 17, 2014 – Higher levels of vitamin D may protect people from an earlier death, particularly from cancer and heart disease, suggests a new analysis of existing research. And, the opposite may also be true – low levels of vitamin D may be linked to a higher risk of premature death. But the researchers acknowledge that the review's findings aren't definitive. "People with low vitamin D die more frequently from heart disease and cancer, but it is not known if the low vitamin D is a cause of these diseases or just a byproduct of generally poor health," said study lead author Ben Schoettker, a post-doctoral scientist with the German Cancer Research Center in Heidelberg, Germany. Still, the research published online June 17 in BMJ does hint at the possibility that vitamin D may benefit people across genders, ages and Western countries, including the United States. The findings ... Read more

Related support groups: Vitamin D, Dietary Supplementation, Vitamin D Deficiency, Vitamin D3, D3, Prevention of Cardiovascular Disease, Cholecalciferol, Ergocalciferol, Drisdol, Hectorol, Vitamin D Insufficiency, Replesta, Delta D3, Doxercalciferol, Calciferol, Decara, Calcidol, D 1000 IU, D3-50, Maximum D3

Jury Still Out on Benefits of Vitamin D

Posted 2 Apr 2014 by Drugs.com

TUESDAY, April 1, 2014 – Two new reports that analyzed research on vitamin D supplements found there's no reason to get excited yet about any possible health benefits. One review, from international researchers, found hardly any benefit. The other analysis suggested it may have what a specialist called a "huge" effect on lifespan, but the findings aren't definitive. "For now, the vitamin D story is intriguing," said Naveed Sattar, a professor of metabolic medicine at the University of Glasgow in Scotland, who co-wrote an editorial accompanying the studies. But more research is required before any definitive recommendations should be made, he said, since "there may yet be unexpected risks to supplementation." There's been intense debate about the value of vitamin D supplements in recent years, specifically over whether they contribute to better health. In one of the new reports, ... Read more

Related support groups: Vitamin D, Vitamin D Deficiency, Vitamin D3, D3, Cholecalciferol, Ergocalciferol, Drisdol, Vitamin D Insufficiency, Replesta, Delta D3, Calciferol, Calcidol, Maximum D3, D 1000 IU, D3-50, D400, D2000, Decara, D3-5

Vitamin D Deficiency May Be Linked to Heart Disease

Posted 27 Mar 2014 by Drugs.com

THURSDAY, March 27, 2014 – New research suggests people with lower levels of vitamin D are more likely to suffer from coronary artery disease and to have more severe forms of the illness. While the findings aren't definitive, they add to recent research that indicates vitamin D – the so-called sunshine vitamin – may play a role in preventing heart disease. The results "suggest vitamin D deficiency to be the cause rather than the consequence of atherosclerosis," said study investigator Dr. Monica Verdoia, a cardiologist at Eastern Piedmont University in Novara, Italy. Clogged arteries, or atherosclerosis, can lead to heart attack. While the study showed an association between vitamin D levels and heart disease risk, it did not prove a cause-and-effect link. The findings are scheduled for presentation Sunday at the American College of Cardiology's annual meeting in Washington, D.C. ... Read more

Related support groups: Heart Disease, Vitamin D Deficiency, Vitamin D Insufficiency

Low Vitamin D Could Up Risk for Birth Complication: Study

Posted 4 Feb 2014 by Drugs.com

TUESDAY, Feb. 4, 2014 – Vitamin D deficiency during the first 26 weeks of pregnancy may raise an expectant mother's risk of developing a severe form of high blood pressure called preeclampsia, a new study suggests. In what they termed one of the largest studies to date on the link, researchers analyzed vitamin D levels in blood samples from 700 pregnant women who later developed preeclampsia and 3,000 pregnant women who did not develop the potentially life-threatening condition. The overall risk of severe preeclampsia among the women in the study was 0.6 percent. Having sufficient levels of vitamin D was associated with a 40 percent reduced risk of severe preeclampsia. There was no association between vitamin D levels and mild preeclampsia, according to the study. While the study showed an association between vitamin D levels and preeclampsia risk, it did not prove a cause-and-effect ... Read more

Related support groups: Vitamin D Deficiency, Vitamin D Insufficiency

Vitamin D Supplements Don't Help Your Health: Review

Posted 24 Jan 2014 by Drugs.com

FRIDAY, Jan. 24, 2014 – There's little evidence that vitamin D supplements offer substantial health benefits, and several ongoing studies are unlikely to change that, according to a large new review. Vitamin D supplements are taken by nearly half of American adults, according to the researchers. The review authors analyzed the findings of 40 studies and determined that taking vitamin D supplements does not reduce the risk of heart attack, stroke, cancer or bone fractures in the general population by more than 15 percent. That result suggests that vitamin D supplements likely provide few, if any, health benefits, said Dr. Mark Bolland, of the University of Auckland in New Zealand, and colleagues. The study appears in the Jan. 25 issue of The Lancet Diabetes & Endocrinology. Unless used in people with vitamin D deficiency, there is legitimate concern that taking vitamin D supplements ... Read more

Related support groups: Vitamin D, Vitamin D Deficiency, Vitamin D3, D3, Cholecalciferol, Ergocalciferol, Drisdol, Vitamin D Insufficiency, Replesta, Delta D3, Calciferol, Calcidol, Maximum D3, D 1000 IU, D3-50, D400, D2000, Decara, D3-5

Vitamin D Deficiency Might Be Overdiagnosed in Blacks, Study Suggests

Posted 21 Nov 2013 by Drugs.com

WEDNESDAY, Nov. 20, 2013 – Black adults typically have low levels of vitamin D in their blood, but they are on par with whites when it comes to the "active" form of vitamin D used by the body's cells, a new study finds. Experts said the findings go a long way toward explaining a paradox: Blacks usually have fairly low vitamin D levels, but have greater bone mass than whites. Vitamin D is needed to maintain strong bones. What's more, the results suggest that doctors may be overdiagnosing vitamin D deficiency in black patients, said lead researcher Dr. Ravi Thadhani, chief of nephrology at Massachusetts General Hospital, in Boston. "We're suggesting that the definition of vitamin D deficiency needs to be rethought," said Thadhani, whose report appears in the Nov. 21 issue of the New England Journal of Medicine. Right now, doctors use a blood test that measures a person's total ... Read more

Related support groups: Vitamin D Deficiency, Vitamin D Insufficiency

Low Vitamin D Tied to Anemia Risk in Kids

Posted 23 Oct 2013 by Drugs.com

TUESDAY, Oct. 22 – Children with low levels of vitamin D may be at increased risk for anemia, according to a large new study. Researchers analyzed blood samples from more than 10,400 children and found that vitamin D levels were consistently lower in youngsters with anemia, a condition involving lower-than-normal levels of red blood cells. Kids with vitamin D levels below 30 nanograms per milliliter (ng/ml) were nearly twice as likely to have anemia as those with normal vitamin D levels. Children with vitamin D levels below 30 ng/ml have mild vitamin D deficiency while those with levels at or below 20 ng/ml have severe deficiency, according to the study. Both require treatment with vitamin D supplements. The researchers also found that 14 percent of black children had anemia, much higher than the 2 percent rate among white children. Black children also had lower vitamin D levels ... Read more

Related support groups: Anemia, Vitamin D Deficiency, Vitamin D Insufficiency

Study: Vitamin D Supplements May Not Raise Risk for Kidney Stones

Posted 17 Oct 2013 by Drugs.com

THURSDAY, Oct. 17 – If fear of kidney stones is preventing you from using vitamin D supplements, a new study could ease your mind. Taking vitamin D does not increase the risk for kidney stones, the study found. People's age, gender and weight, however, may play a role in developing the condition. Previous research suggested that adequate levels of vitamin D might help protect against a number of diseases, including certain forms of cancer. "Our results may lessen concerns by individuals about taking vitamin D supplements, as no link was shown between such supplementation and an increased risk for kidney stones," study leader Cedric Garland, of the University of California, San Diego School of Medicine, said in a university news release. The new study used data on more than 2,000 adults of all ages. After following the participants for 19 months, researchers found that only 13 people ... Read more

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No Sign That Vitamin D Supplements Help Aging Bones: Study

Posted 11 Oct 2013 by Drugs.com

THURSDAY, Oct. 10 – Taking vitamin D supplements does not prevent the bone weakening of osteoporosis in healthy adults, a new review finds. Nearly half of people aged 50 and older use vitamin D supplements, but these findings suggest that there is no need for healthy adults to take these supplements to combat osteoporosis. Instead, the use of these supplements should be focused only on people who are likely to be vitamin D deficient, the New Zealand researchers said. One expert in the United States agreed with that advice. "The review supports previous studies that found that vitamin D alone is not preventative in healthy adults," said Victoria Richards, an assistant professor of medical sciences at the Netter School of Medicine at Quinnipiac University in Hamden, Conn. "From this study, consumers may no longer feel the need to continue purchasing vitamin D supplements for the ... Read more

Related support groups: Osteoporosis, Vitamin D Deficiency, Vitamin D Insufficiency

Too Little Vitamin D May Hasten Disability as You Age

Posted 19 Jul 2013 by Drugs.com

WEDNESDAY, July 17 – Older people with vitamin D deficiency may struggle with daily physical activities such as dressing or climbing stairs, a new study shows. It's estimated that as many as 90 percent of older people are vitamin D-deficient. The vitamin, usually absorbed through sunlight or diet, plays a key role in bone and muscle health, and a deficiency can lead to reduced bone density, muscle weakness, osteoporosis and broken bones. The study included more than 1,300 people, aged 55 to 88, in the Netherlands who were followed for six years. Participants' vitamin D levels were checked and they were asked about their ability to do routine tasks, such as sitting down and standing up from a chair or walking outside for five minutes without resting. Among participants aged 65 to 88, those with the lowest vitamin D levels were 1.7 times as likely to have at least one physical limitation ... Read more

Related support groups: Vitamin D Deficiency, Vitamin D Insufficiency

Heart Dangers of Low Vitamin D Levels May Vary

Posted 9 Jul 2013 by Drugs.com

TUESDAY, July 9 – The heart risks of having low levels of vitamin D may hinge on what race or ethnicity you are, new research suggests. Specifically, the team of scientists found it might increase heart disease risk among white or Chinese individuals, but it does not seem to pose any cardiovascular danger to black or Hispanic adults. "We think that the differences are mainly due to biologic differences in vitamin D metabolism between race [and] ethnicity groups. However, future studies are needed to more carefully examine these potential differences," said study author Cassianne Robinson-Cohen, of the University of Washington, in Seattle. "Our results suggest that we should use caution in extrapolating results from studies conducted in European Americans to all race [and] ethnicity groups." Vitamin D is known as the sunshine vitamin because the human body produces it when exposed to ... Read more

Related support groups: Vitamin D Deficiency, Vitamin D Insufficiency, Cardiovascular Conditions and Disorders

Vitamin D Levels Vary by Season

Posted 23 Jun 2013 by Drugs.com

THURSDAY, June 20 – Americans' vitamin D levels vary throughout the year, peaking in August and bottoming out in February, a new study shows. The findings will contribute to understanding the vitamin's role in seasonal illnesses, according to the researchers from the University of California, Irvine, and the Mayo Clinic. Vitamin D, which is produced by the skin when exposed to sunlight, helps bones absorb calcium and can protect against osteoporosis. It's also believed to play a role in seasonal illnesses such as the flu. For this study, the researchers measured vitamin D levels in 3.4 million blood samples collected weekly in the United States between July 2006 and December 2011. The results appear in the journal PLoS One. "Even with food fortification, vitamin D levels in the population show a high level of seasonality due to the influence of sunlight," study first author Amy ... Read more

Related support groups: Vitamin D Deficiency, Vitamin D Insufficiency

Study Looks at Vitamin D Needs in Breast-Fed Babies

Posted 30 Apr 2013 by Drugs.com

TUESDAY, April 30 – Ideal amounts of vitamin D supplementation for breast-feeding infants are unclear, according to a new study. Vitamin D is important for infant bone growth, but breast-feeding infants are susceptible to vitamin D deficiency due to low levels of the vitamin in breast milk, according to background information included in the study, which was published in the May 1 issue of the Journal of the American Medical Association. The study, by Hope Weiler and colleagues at McGill University in Montreal, included 1-month-old healthy breast-fed infants who were followed for 11 months after being randomly assigned to receive different dosages of oral vitamin D supplements. Doses were either 400, 800, 1,200 or 1,600 international units per day. None of the dosages raised and maintained vitamin D levels within a range recommended by some pediatric societies, but all the dosages ... Read more

Related support groups: Dietary Supplementation, Vitamin D Deficiency, Vitamin D Insufficiency

Vitamin D Important During Pregnancy, Study Suggests

Posted 26 Mar 2013 by Drugs.com

TUESDAY, March 26 – Low levels of vitamin D during pregnancy are associated with an increased risk of complications in mothers-to-be and low birth weight in their newborns, a new study finds. The research shows an association but doesn't prove that insufficient vitamin D causes complications. Still, taking vitamin D supplements may help reduce these risks, the researchers noted. Researchers examined data from 31 studies published between 1980 and 2012. The studies had between 95 and 1,100 participants. The analysis revealed that pregnant women with low levels of vitamin D were more likely to develop gestational diabetes (diabetes during pregnancy) and preeclampsia (high blood pressure and protein in the urine). They were also more likely to have a low birth weight baby. The findings, published online March 26 in the BMJ, are "concerning" given recent evidence that low levels of vitamin ... Read more

Related support groups: Vitamin D Deficiency, Vitamin D Insufficiency

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