A reader's letter to the Vitamin D Council asking Dr. Cannell whether 30,000 IU a day is enough for her hospitalized 71-year-old mother with Pseudomonas pneumonia, with the opening of his reply.
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Vitamins
Research on vitamins A through K, deficiencies and supplementation.
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Vitamins
Breaking News: Vitamins may help prevent cervical cancer
In a Korean survey of 1,096 women, those taking multivitamins or vitamins A, C and E and calcium were about 80 percent less likely to have CIN II or III, cervical changes that can precede cancer. Higher HPV viral load tracked with more advanced dysplasia.
Vitamins
This ONE Antioxidant Keeps All Other Antioxidants Performing at Peak Levels
Mercola and Ori Hofmekler describe glutathione, a tripeptide of cysteine, glutamate and glycine present in every cell, as the body's master antioxidant, and set out how it differs from the similarly named glutamine and glutamate.
Vitamins
Trial results show vitamin D helps prevent flu
In a randomized, double-blind trial of Japanese schoolchildren published in the American Journal of Clinical Nutrition, influenza A struck 10.8 percent of those taking 1,200 IU of vitamin D3 daily against 18.6 percent of controls, a 48 percent lower risk.
Vitamins
Vitamin D and Urinary Incontinence (press release)
Researchers at SUNY Upstate Medical University studied 1,961 women and found low vitamin D levels predicted pelvic floor disorders, with urinary incontinence twice as likely in deficient women. The authors suggest treating insufficiency could improve pelvic muscle strength.
Vitamins
Taking multivitamins may raise breast cancer risk
Following 35,000 Swedish women aged 49 to 83 for a decade, researchers found those taking multivitamins were 19 percent more likely to be diagnosed with breast cancer. The design cannot show cause, and the authors note supplement users may already have been at higher risk.
Vitamins
The Vitamin D Newletter: Update on Autism and Vitamin D
The Vitamin D Council newsletter summarises three Swedish papers it says support a vitamin D theory of autism, among them a Karolinska study in which the 10 adult psychiatric outpatients with autism had the lowest 25(OH)D levels of any group, averaging about 12 ng/ml.
Vitamins
Some States See High Rates of Flu Activity, Vitamin D Helps Fight the Illness
CDC reported flu activity elevated in regions 4, 7 and 9 in late March, with Georgia's diagnosis rate at 15.2 percent. A health observer suggests the pattern may relate to larger black populations in those states, since vitamin D deficiency is more common among blacks.
Vitamins
Vitamin D May Protect Against Heart Attack
Cardiologist J. Brent Muhlestein found about two-thirds of 41,000 Intermountain Medical Center patients had low vitamin D, and low levels were associated with later heart attacks, strokes and death. Those brought back to normal had about 30% fewer cardiovascular events.
Vitamins
Vitamin D deficiency may lead to MRSA infection
Analyzing NHANES data from 2001 to 2004, Medical University of South Carolina researchers found 1.2 percent of the population carried MRSA and 28.3 percent were vitamin D deficient. People with serum vitamin D below 20 ng/mL faced a significantly higher risk of MRSA carriage.
Vitamins
Infants need vitamin D supplements
Researchers estimate only 5 to 37% of US infants meet the American Academy of Pediatrics' 400 IU daily vitamin D standard, and just 1 to 13% get a supplement. Breast-fed babies fare worst, and a formula-fed infant would need about 32 ounces a day to reach 400 IU.
Vitamins
The Vitamin D Newsletter: Vitamin d and heart disease
The Vitamin D Council newsletter summarizes two Annals of Internal Medicine reviews. Pittas and colleagues pooled 32 studies and concluded that lower vitamin D status seems to carry higher risk of hypertension and cardiovascular disease, while supplements' effect on outcomes is unknown.
Vitamins
Vitamin D Deficiency is Why You Get Flu!
A study in Nature Immunology describes how T cells need vitamin D to activate: on meeting an invader the T cell signals the vitamin D receptor gene, whose protein binds vitamin D and then produces PLC-gamma1, letting the cell start fighting the infection.
Vitamins
Vitamin D Boosts Immunity Against Tuberculosis
No trial has tested whether vitamin D prevents tuberculosis, but the author cites supporting evidence: 86% of 64 children with active or latent TB at a London clinic were vitamin D deficient or insufficient, and a case-control study found lower levels in active TB patients.
Vitamins
Drug Resistant TB a Global Risk; Vitamin D May Help Prevent TB
US tuberculosis cases fell 11.8 percent in 2008, but WHO says drug-resistant TB is rising in Russia, India and China; a third of the 440,000 resistant cases reported that year died. Treating MDR-TB costs about $500 and up to two years, against $20 and six months for conventional TB.
Vitamins
Low levels of vitamin D linked to higher rates of asthma in African American Kids (PR)
Children's National researchers found 86 percent of 85 African American children with asthma had insufficient vitamin D, against 19 percent of 21 healthy children; adjusted odds ran nearly twenty times higher. Lead author Robert Freishtat says more research is needed to establish how.
Vitamins
The Vitamin D Newsletter: More vitamin D studies
A Vitamin D Council newsletter argues the American press is ignoring recent vitamin D research, then reviews new studies, including University of Toronto work suggesting that common variants in the vitamin D binding protein help explain why blood levels respond differently to supplements.
Vitamins
Vitamin D and Calcium Interplay Explored
An ARS-supported study of about 10,000 US adults aged 20 and over underscores vitamin D's role in helping the body use calcium, which may help explain why raising calcium intake alone does not always cut fractures. Many younger and older adults fell below desirable serum levels.
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