
Vitamins Information
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Vitamin C: Tips For Increasing Your Intake
A new RDA?
According to a recent issue of the Journal of the American Medical Association (JAMA), the National Institutes of Health is taking another look at the Recommended Daily Allowance (RDA) for vitamin C. The current RDA for vitamin C is 60 milligrams per day—about the amount you get from one orange. Due to recent findings on the potential health benefits of this wonder vitamin, the NIH is now considering boosting the RDA to somewhere between 100 and 200 milligrams per day, two to three times the current recommendation.
Why all the hype?
Vitamin C has long been known for its value as an antioxidant. Antioxidants are natural compounds found in many of the foods we eat. The most well known antioxidants are vitamin C, selenium, beta carotene and vitamin E. Antioxidants work by inhibiting toxic substances in the body (also known as "free radicals") which may lead to the development of cancers, heart disease and the aging process. There has been a strong correlation between diets high in fruits and vegetables (which are rich in antioxidants) and reduced risk of chronic diseases. Vitamin C may account for much of this protection. However, we are also finding numerous other compounds within fruits and vegetables, collectively called "phytochemicals", that may also play a preventative role. Phytochemicals are defined simply as chemicals found in plants. They occur naturally in fruits, vegetables, grains, nuts and seeds. These substances, many of which also have an antioxidant effect, may protect our bodies from cellular damage that can lead to cancer and other chronic diseases.
Due to the strong correlation between diets abundant in fruits and vegetables and disease prevention, The National Cancer Institute launched the "5-A-Day" program. The basis of this campaign promotes the intake of a minimum of five fruits and vegetables daily as a good defense against cancer and other diseases. A specific recommendation of this program is to include vitamin C rich fruits and vegetables in the diet each day since vitamin C is a particularly well-researched antioxidant. The mainstay of the program, however, is that by eating five servings of produce daily we can easily take in not just a good dose of vitamin C, but the minimum amount of protective plant chemicals shown to be effective in reducing risk of chronic diseases. Remember, five is the minimum amount. In the case of fruits and veggies it's definitely a situation where more is better!
Obama Declares Swine Flu a National Emergency
SUNDAY, Oct. 25 (HealthDay News) -- President Barack Obama has declared the H1N1 swine flu a national emergency.
His proclamation, signed Friday night and released by the White House Saturday, will allow hospitals and doctors' offices to get legal waivers of federal rules so they can handle large numbers of sick people as the outbreak spreads.
"The H1N1 is moving rapidly, as expected. By the time regions or health-care systems recognize they are becoming overburdened, they need to implement disaster plans quickly," White House spokesman Reid Cherlin said Saturday, according to the Washington Post.
The waivers, which will be issued by U.S. Health and Human Services Secretary Kathleen Sebelius, still require individual requests by the hospitals, Cherlin noted.
The goal, according to the Associated Press, is to remove bureaucratic roadblocks and make it easier for sick people to seek treatment and for medical personnel to provide it immediately. That could mean fewer hurdles involving Medicare, Medicaid or health privacy regulations, the AP added.
The H1N1 swine flu is now widespread in 46 states, and there have been 1,000 laboratory-confirmed deaths since April, according to the latest estimates released Friday by U.S. health officials.
Dr. Thomas R. Frieden, director of the U.S. Centers for Disease Control and Prevention, told a news conference Friday, "We have already had millions of cases of pandemic influenza in the United States, and the numbers continue to increase."
At the same time, he said, production delays continue to hamper distribution of the H1N1 swine flu vaccine.
The vaccine is growing more slowly in egg-based cultures than manufacturers had anticipated, resulting in fewer available doses at this time, Frieden explained.
As of Friday, there were 16.1 million doses on hand nationwide, up from 14.1 on Wednesday, Frieden said. And there will be far fewer than the 40 million doses originally planned for the end of October, he added.
"Vaccine availability is increasing steadily, but far too slowly," Frieden said. "It's frustrating to all of us. We are nowhere near where we thought we would be by now. We are not near where the vaccine manufacturers predicted we would be."
The vaccine that is available comes in both nasal mist and injectable forms. The first doses were only the nasal spray, called FluMist, designed for healthy people 2 to 49 years of age. But now, more than half the doses are injectable, he said.
While children continue to be particularly vulnerable to the disease, Freiden said, "we are seeing it increasingly affect young adults as well as children. We are still not seeing significant numbers of cases among the elderly, and that's characteristic of this virus."
That's also a marked difference from run-of-the-mill seasonal flu, which typically poses a much bigger threat to the elderly.
There is encouraging news, Frieden said. The genetic makeup of the H1N1 virus hasn't changed, meaning the swine flu vaccine and the antiviral drug Tamiflu are a good match.
Frieden said the H1N1 flu would probably occur in waves, but "we can't predict how high, how far or long the wave will go, or when the next will come."
"We are now in the second wave of pandemic influenza and whether this will continue through the fall into the winter, whether it will go away and come back in traditional flu season, only time will tell," he said.
More information
To learn more about the H1N1 swine flu, visit the U.S. Department of Health and Human Services.
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