ALLERGY, RESPIRATORY
Know Your Asthma Triggers
Keep Asthma, Allergies at Bay for the Holidays
Using Music and Sports to Improve Kids' Asthma
ALTERNATIVE MEDICINE
Soybean Chemicals May Reduce Effects of Menopause
38% of U.S. Adults Use Alternative Treatments
Fish Oil's Benefits Remain Elusive
ANIMAL CARE
Separation Anxiety, Canine-Style
Safe Toys for Dogs
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
BONES & JOINTS
Improved Hip Implants Can Last 20 Years
Fall Sports Peak Time for Lower Leg Damage
Tips to Ease an Aching Back
CANCER
Omega-3 May Safely Treat Precancerous Bowel Polyps
Many Cancer Patients Turn to Complementary Medicine
Minorities Distrust Medical System More
CAREGIVING
Recession Scrambling Health Spending in U.S.
Many Alzheimer's Caregivers Admit to Abusive Behavior
Transition From Home to Hospital Rarely Seamless
CIRCULATORY SYSTEM
Night Shift Work Hard on the Heart
Bad Marriages Harder on Women's Health
Health Tip: Are You Anemic?
COSMETIC
Contact Lenses Boost Kids' Self-Image
New Genetic Links to Baldness Discovered
Wrinkle Fillers Need Better Label Warnings: FDA Panel
DENTAL, ORAL
Scientists Find Gene for Tooth Enamel
Good Oral Hygiene May Protect Against Heart Infections
Health Tip: At Risk for Gingivitis
DIABETES
'Standard' Glucose Test May Be Wrong One for Obese Children
Poor Blood Sugar Control After Heart Surgery Impacts Outcomes
Whole Grains Take a Bite Out of Type 2 Diabetes Risk
DIET, NUTRITION
Probiotics Are The Good Guys
Leafy Greens Top Risky Food List
Marinades Help Keep Grilled Meat Safe
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Climate Change Linked to Longer Pollen Seasons
Skin Woes Take Toll on U.S. Combat Troops
Air Pollution May Cause Appendicitis: Study Reveals
EYE CARE, VISION
Nearly 18 Million Will Have Macular Degeneration by 2050
When Gauging Age, the Eyes Have It
Ordinary Chores Cause Half of All Eye Injuries
FITNESS
Being Active an Hour a Day Puts Brakes on Weight Gain
The Juice From Beetroots May Boost Stamina
Walk Long, Slow and Often to Help the Heart
GASTROINTESTINAL PROBLEMS
New Yogurt May Ease Stomach Ulcers
Bowel Prep Harder on Women Than Men
HRT Use Raises Risk of Stomach Trouble
GENERAL HEALTH
Maximize Your Run
Food and Water Supply Poisoned by Perchlorate
Simple Holistic Approach to Fight the Common Cold
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
Combating Myths About Seasonal Allergies
'Comfort Dogs' Come to Emotional Rescue
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Exercise May Blunt Salt's Effect on Hypertension
Fewer Heart Attacks After England Goes Smoke-Free
Small Cuts in Salt Intake Spur Big Drops in Heart Trouble
INFECTIOUS DISEASE
Swine Flu Now Reported in All 50 States
More Medicinal Uses for Pomegranate
Surgical Masks Could Prevent Flu, Maybe
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
School Meals Need to Get Healthier
Even Young Kids Can Learn CPR
Mom and Baby Alike May Benefit From Exercise
MEN'S HEALTH
Countdown to Hair Loss
Soy Linked to Low Sperm Count
Low Iron Levels Cut Cancer Risk in Men With PAD
MENTAL HEALTH
Drink Away Dementia?
Green Spaces Boost the Body and the Mind
Meditation, Yoga Might Switch Off Stress Genes
PAIN
Tai Chi May Help Ease Fibromyalgia
Are We Exercising Pain Away? Not So Much.
Alleviating Rheumatoid Arthritis
PHYSICAL THERAPY
PREGNANCY
Sugary Colas Tied to Gestational Diabetes
Pregnant Women Exposed To Certain Pollutants Could Lower Childs IQ
Obesity May Affect Fertility in Young Womene
SENIORS
Video Gaming Just Might Fight Aging
Laughter Can Stimulate a Dull Appetite
For a Healthier Retirement, Work a Little
SEXUAL HEALTH
SLEEP DISORDERS
Meditation May Help Put Primary Insomnia to Bed
Pay Attention to Signs That Say You're Too Fatigued to Drive
Lose Weight, Sleep Apnea May Improve
WOMEN'S HEALTH
Exercise Boosts Bone Density in Breast-Feeding Moms
Vitamin D Good for Breast Cancer Patients
Lifting Weights Can Ease Arm Swelling in Breast Cancer Survivors
Add your Article

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

Copyright 2009 ScoutNews, LLC. All rights reserved.

More articles at www.eholistic.com