December 29th, 2011 by Maia Szalavitz in Health Tips, Research
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Vitamins, herbs and other dietary supplements are sold as natural alternatives to pharmaceuticals and many people turn to them in an attempt to improve their health. Others seek supplements to lose weight or after hearing that they can help with serious medical conditions. These products are now used at least monthly by more than half of all Americans—and their production, marketing and sales have become a $23.7 billion industry, according to the Nutrition Business Journal.
What Are Dietary Supplements and How Are They Regulated?
98-year-old Bob Stewart, a retired podiatrist and senior Olympian, credits his use of supplements for his healthy aging. Writer Betsy McMillan, a mother of two now adult children, however, nearly suffered permanent liver damage due to a supplement that contained potentially fatal levels of niacin.
Unlike pharmaceuticals—which must be FDA-approved as safe and effective before they can be marketed—supplements are considered as foods by regulators and assumed to be safe until proven otherwise. Although pharmaceutical manufacturers face inspections to ensure that the right dose is in the right pill without dangerous contaminants, supplements do not undergo such intense government scrutiny.
Despite many reports of health problems, Read more »
*This blog post was originally published at Prepared Patient Forum: What It Takes Blog*
December 5th, 2011 by RyanDuBosar in News, Research
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Too much vitamin D can lead to 2.5 times the risk of atrial fibrillation, researchers found.
To determine if there is a correlation between too much vitamin D and increased heart risk, researchers examined blood tests from 132,000 patients in the Intermountain Healthcare Center database. Results were presented at the American Heart Association Scientific Sessions in November, and appeared at the Intermountain website.
Patients did not have any known history of atrial fibrillation, and all had previously received a vitamin D assessment as part of their routine care. Patients were then placed into categories to compare levels of vitamin D: low (less than 20 ng/dL), low/normal (21-40 ng/dL), normal (41-80 ng/dL), high/normal (81-100 ng/dL), and excess (more than 100 ng/dL).
Patients with low, low-normal, normal and high-normal levels of vitamin D had no increased risk of atrial fibrillation. However, atrial fibrillation risk Read more »
*This blog post was originally published at ACP Hospitalist*
November 27th, 2011 by Howard LeWine, M.D. in Health Tips, Research
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Good vibrations may work for dancing on the beach or for romance, but they don’t seem to do much to strengthen bones.
Results of a clinical trial published in the Annals of Internal Medicine showed that older women who stood on a vibrating platform for 20 minutes a day experienced just as much bone loss over the course of the year-long trial as women who didn’t use the platform.
The results are a disappointment for older women and men looking to strengthen their bones without exercising, not to mention to the companies that have sprung up to sell whole-body vibration platforms as an easy way to halt osteoporosis, the age-related loss of bone.
The idea behind whole-body vibration makes sense. Like walking, running, and other weight-bearing physical activities, whole-body vibration Read more »
*This blog post was originally published at Harvard Health Blog*
October 19th, 2011 by Steve Novella, M.D. in Health Tips, Research
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The discovery of various vitamins – essential micronutrients that cause disease when deficient – was one of the great advances of modern scientific medicine. This knowledge also led to several highly successful public health campaigns, such as vitamin-D supplementation to prevent rickets.
Today vitamins have a deserved reputation for being an important part of overall health. However, their reputation has gone beyond the science and taken on almost mythical proportions. Perhaps it is due to aggressive marketing from the supplement industry, perhaps recent generations have grown up being told by their parents thousands of times how important it is to take their vitamins, or eat vitamin-rich food. Culture also plays a role – Popeye eating spinach to make himself super strong is an example this pervasive message.
Regardless of the cause, the general feeling is that vitamins Read more »
*This blog post was originally published at Science-Based Medicine*
July 22nd, 2011 by Jeffrey Benabio, M.D. in Health Tips
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Baby skin is sun-sensitive.
Everyone wishes they had baby skin. It feels so soft and smooth; it’s perfectly adapted to induce us adults to want to clean their diaper, no matter how many times they dirty them. Like their big eyes and cute noses, baby skin is part of the whole package of being adorable. But like their eyes, their skin, however beautiful, is immature. Baby skin is thinner, has less natural moisturizers and has fewer pigment cells, making it more vulnerable to the environment than adult skin.
This is important especially in summer. How often do you see babies running around on the beach with just a diaper on? Although they seem indestructable, they are more vulnerable than the adult holding the pail and shovel.
Studies have shown that up to 83% of babies get sunburned their first year of life. This is our fault, not theirs. Sunburns at an early age can increase the risk for melanoma skin cancer on the trunk later in life. Sun exposure is also a poor way to get vitamin D for infants because most will get far more damaging sun than they need to make vitamin D — we adults tend to over cook them.
Here are five tips to keep your baby safe this summer: Read more »
*This blog post was originally published at The Dermatology Blog*
