For the study, Dr. Jared P. Reis of the Johns Hopkins Bloomberg School of Public Health and colleagues analyzed data on 3,577 adolescents, 1 2 to 1 9 years old, who participated in the nationally representative National Health and Nutrition Examination Survey (NHANES) conducted from 200 1 -2004. The researchers used a biomarker of vitamin D to measure levels in blood. On average, none of the teens were getting enough vitamin D, however those with the lowest levels were more than twice as likely to have high blood pressure and high blood sugar compared to those with the highest levels. They were also four times more likely to have metabolic syndrome, a cluster of cardiovascular disease and diabetes risk factors including elevated waist circumference, high blood pressure, elevated triglyc...
Dear Dr. Gott: I have been sick with cold and flu symptoms (on average) about 12 to 14 days each month for the past year. My family doctor referred me to a rheumatologist because she thought it might be autoimmune. The rheumatologist believes a low vitamin D level and allergies are causing my symptoms. She has put me on 50,000 IU of vitamin D for the next eight weeks and daily Claritin. Can you tell me what could be causing my low vitamin D level?
TO THE EDITORS: This is in response to a recent letter, "Laws are not silly." I definitely believe that, but it is sad to read about those who disrespect the law and cause pain.
It's that time of the year again when families go to the beach, friends lie by the pool and neighbors enjoy cookouts. It is during these times outdoors when people apply sunscreen to avoid sunburns. But is blocking sunlight giving us a vitamin D deficiency? Forty percent of Americans are vitamin D deficient. The main cause of vitamin D deficiency is lack of sunlight exposure. This can be due to increased sunscreen use or avoidance of sunlight.
It is interesting to note, as Dr. [Zaidi] points out in "Power of Vitamin D," that Vitamin D deficiency worsens Insulin Resistance, therefore amplifying the negative effects of Insulin Resistance on the heart. Insulin Resistance typically occurs in overweight individuals, whose Vitamin D level gets even lower due to their obesity. Vitamin D is fat soluble and gets trapped in the fat. Consequently, little Vitamin D is available for the rest of the body. Low Vitamin D then has direct negative effects on the heart. In addition, it worsens Insulin Resistance. Thus, obese individuals have the double whammy of Insulin Resistance and Vitamin D deficiency and the two reinforce each other. That's why these individuals continue to suffer from coronary events despite being on statin and aspirin th...
Low levels of vitamin D, a chronic problem for many people in northern latitudes areas such as Wisconsin, were associated with substantially higher rates of heart disease and stroke, according to the latest study in a growing amount of research suggesting that vitamin D deficiencies might be at the root of a variety of serious health problems. Indeed, a second study published online Monday in another journal concluded that people who got increased levels of sun exposure had a better chance of surviving various cancers than those who got limited sun exposure.
Remember all the advice we've heard about skin cancer - stay out of the sun, cover up, wear sunblock? Now some doctors are saying that it has resulted in a new health problem - millions of people worldwide are suffering from vitamin D deficiency. And the scientific and therapeutic disagreements between dermatologists and nutritionists are heating up.
SAN LUIS OBISPO, Calif., June 23 /PRNewswire-USNewswire/ -- A Scientific American article asks, "What if Vitamin D Deficiency is a Cause of Autism?" (1) How could vitamin D deficiency during pregnancy cause autism, a genetic disease? Indeed, five researchers at Harvard, led by Dr. Dennis Kinney, recently endorsed and then modified the vitamin D theory of autism.(2) Very recently, Dr. Darryl Eyles, of the University of Queensland, added his name to growing list of scientists who agree that vitamin D deficiency plays an important role in autism. (3) Writing in Acta Paediatrica, arguably the most read pediatric journal in the world, Dr. Eyles praised the vitamin D theory of autism as being "parsimonious," with the animal studies he has conducted over the last decade.
TO THE EDITORS: In response to Helen Young's letter, "Vegetarians at risk of vitamin deficiency" (Sept. 16), both omnivores and vegetarians are at risk of vitamin deficiency if we don't select the proper foods.
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