ALLERGY, RESPIRATORY
Air Pollution May Raise Blood Pressure
Obesity May Raise Kids' Allergy Risk
Climate Change Could Sting Allergy, Asthma Sufferers
ALTERNATIVE MEDICINE
Higher Vitamin D Intake Could Cut Cancer Risk
New Insights Show Ginseng Fights Inflammation
Tai Chi: An Ideal Exercise for Many People with Diabetes
ANIMAL CARE
Animals Respond to Acupuncture's Healing Touch
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
Safe Toys for Dogs
BONES & JOINTS
Arthritis Hits More Than Half of Diabetics
Gene Therapy May Ease Rheumatoid Arthritis
Barefoot Lifestyle Has Its Dangers
CANCER
Red Meat No No No But Oily Fish Yes Yes Yes
Smoking Exposure Now Linked to Colon, Breast Cancers
Drinking Green Tea May Slow Prostate Cancer
CAREGIVING
Are Hospital Mobile Phones Dialing Up Superbugs?
U.S. Mental Health Spending Rises, But Many Still Left Out
Hispanic Children More Likely to Have Hearing Loss
CIRCULATORY SYSTEM
Secondhand Smoke Quickly Affects Blood Vessels
Exercise May Blunt Salt's Effect on Hypertension
Bye, Bye Back Fat?
COSMETIC
What to Do If You Have Unsightly Veins
Science May Banish Bad Hair Days
Wrinkle Fillers Need Better Label Warnings: FDA Panel
DENTAL, ORAL
Scientists Find Gene for Tooth Enamel
Gum Disease May Reactivate AIDS Virus
Gum Care Helps Control Type 2 Diabetes and Its Complications
DIABETES
Exercise Protects Black Women From Type 2 Diabetes
Treatment for Type 2 Diabetes Updated
Insulin Resistance Tied to Peripheral Artery Disease
DIET, NUTRITION
DASH Diet Has Extra Benefits for Women's Health
Asparagus May Ease Hangover
Most Fast-Food French Fries Cooked in Unhealthiest Oil
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Chemical in Plastics May Cause Fertility Problems
Preparing for a Chlorine Gas Disaster
Hairspray Exposure Ups Risk for Birth Defect in Sons
EYE CARE, VISION
Clues Found to Brain Mechanism Behind Migraines
Diabetic Hispanics Missing Out on Eye Exams
Impotence Drugs Don't Harm Vision: Study
FITNESS
Avoiding a Holiday Season of Discontent
School Phys. Ed. Injuries Up 150 Percent
Exercise As Well As Acupuncture, May Ease Polycystic Ovarian Syndrome
GASTROINTESTINAL PROBLEMS
New Guidelines Issued for Management of IBS
Olive Oil May Protect Against Bowel Disease
Intestinal Bacteria Trigger Immune Response
GENERAL HEALTH
To Quit Smoking, Try Logging On
More Whole Grains May Mean Less Fat
Dry Weather Boosts Odds of Flu Outbreaks
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
HEALTH & TECHNOLOGY
Using Light Therapy to Silence Harmful Brain Activity
Airport Full Body Scanners Pose No Health Threat: Experts
The Internet Is Becoming One-Stop Shopping for Health Help
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Years of Heavy Smoking Raises Heart Risks
Women Who Run May Benefit From Extra Folic Acid
Obese People Seem to Do Better With Heart Disease
INFECTIOUS DISEASE
Surgical Masks Could Prevent Flu, Maybe
Bacterial Infections May Succumb to Honey
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Folic Acid Reduces Infant Heart Defects
More Calcium And Dairy Products in Childhood Could Mean Longer Life
Coconut Oil May Help Fight Childhood Pneumonia
MEN'S HEALTH
Eating Fast Until Full Triples Overweight Risk
Low Vitamin D Levels May Boost Men's Heart Attack Risk
Exercise May Prevent Prostate Cancer: Study Shows
MENTAL HEALTH
Green Spaces Boost the Body and the Mind
The Unmedicated Mind
A Simple 'Thank You' Brings Rewards to All
PAIN
Are We Exercising Pain Away? Not So Much.
'Cell Phone Elbow' -- A New Ill for the Wired Age
Tai Chi May Help Ease Fibromyalgia
PHYSICAL THERAPY
PREGNANCY
Breast-Feeding May Protect a Woman's Heart
Breast-Feeding Benefits Moms and Babies
Mom's Extra Pregnancy Pounds May Raise Child's Heart Risks
SENIORS
Martial Arts Training May Save Seniors' Hips
For a Healthier Retirement, Work a Little
Keeping Mentally Active Seems To Keep The Brain Active
SEXUAL HEALTH
SLEEP DISORDERS
Sleeping Could Help Women Lose The Baby Fat
Meditation May Help Put Primary Insomnia to Bed
Daylight Savings: Not a Bright Time for All
WOMEN'S HEALTH
Vitamin D Good for Breast Cancer Patients
Acupuncture May Help Relieve Polycystic Ovary Syndrome
Lifting Weights Can Ease Arm Swelling in Breast Cancer Survivors
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Low Vitamin A, C Intake Tied to Asthma Risk

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 antioxidants and wheezing were less consistent. The report was published in the current issue of Thorax.

More information

The U.S. National Heart, Lung, and Blood Institute has more about asthma.



-- Robert Preidt



SOURCE: BMJ Specialist Journals, news release, April 15, 2009

Last Updated: April 16, 2009

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