Low Vitamin E, C Intake Tied to A... ( But British team says findings don't ...)

Low Vitamin E, C Intake Tied to Asthma Risk

Date:4/16/2009

But British team says findings don't prove cause and effect

THURSDAY, April 16 (HealthDay News) -- People who don't get enough of the antioxidant vitamins A and C in their diet may be at increased risk for asthma, British researchers say.

The pooled results of 40 studies conducted between 1980 and 2007 showed that people with asthma had a significantly lower dietary intake of vitamin A than those without the disease. The average intake among those with asthma was 182 micrograms a day, which is between a quarter and a third of recommended daily intake.

The review authors also found that people with severe asthma had a significantly lower intake of vitamin C (about half the recommended daily intake) than those with mild asthma. In addition, low circulating levels of vitamin C in the blood and lower dietary intake of foods containing vitamin C were associated with a 12 percent increased risk of asthma.

There was no association between vitamin E intake and asthma risk, but blood levels of vitamin E were much lower among people with severe asthma than in those with mild asthma. Those with severe asthma had an average vitamin E intake of 2 milligrams/day, which is 20 percent lower than the daily recommended amount, the review authors said.

These findings don't prove cause and effect, but they do challenge a study published last year that found no association between antioxidants and asthma risk, said Dr. Jo Leonardi-Bee, of the division of epidemiology and public health at the University of Nottingham in the United Kingdom, and colleagues.

"Overall, our findings from [the current] systematic review and meta-analysis indicate that low levels of vitamin C intake, and to a lesser extent vitamin A, are consistently associated with asthma risk to a degree that, if causal, would be sufficient to be clinically relevant," they concluded.

Their findings for an association between dietary antioxidant
'/>"/>

0

GOOD

Page: 1 2
Related medicine news :

1. Hero Nutritionals Launches its New "Vitamin D3 Formula of Slice of Life Gummy Vitamins for Adults."
2. Amoena Introduces First Post Surgical Garments With Vitamin E & Aloe to Help Soothe and Comfort After Breast Surgery
3. ConsumerLab.com Warns of Problems with Mulitivitamins and Vitamin Water
4. Enzyme and vitamin define the yin and yang of asthma
5. Vitamin D Deficiency Has Emerged as a Silent Epidemic
6. Many Americans Fall Short on Their Vitamin D
7. Mayo Clinic Study Suggests Those Who Have Chronic Pain May Need to Assess Vitamin D Status
8. Mayo Clinic study suggests those who have chronic pain may need to assess vitamin D status
9. Bone Up On Calcium and Vitamin D for a Chance to Win a Family Vacation to Yellowstone National Park
10. Americans Need to Get More Vitamin D In Their Diets
11. Vitamin D may not be the answer to feeling SAD

Post Your Comments:

Low Vitamin E, C Intake Tied to A...( But British team says findings don't ...),Health