ALLERGY, RESPIRATORY
Keep Asthma, Allergies at Bay for the Holidays
Herbal Remedy Could Halt Peanut Allergy
Traffic, Dust Linked to Asthma in Kids
ALTERNATIVE MEDICINE
Acupuncture May Help Restore Lost Sense of Smell
The Zen Way to Pain Relief
Fish Oil's Benefits Remain Elusive
ANIMAL CARE
'Comfort Dogs' Come to Emotional Rescue
Separation Anxiety, Canine-Style
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
BONES & JOINTS
Occupational Therapy Plus Exercise Benefits Osteoarthritis
More Faces Being Spared in Motor Vehicle Accidents
Bone Loss Stable on Restricted Calorie Diet
CANCER
Meditation May Reduce Stress in Breast Cancer Patients
Broccoli May Help Battle Breast Cancer
More Cancer Tests Mean More False-Positive Results
CAREGIVING
Hispanic Children More Likely to Have Hearing Loss
Many Alzheimer's Caregivers Admit to Abusive Behavior
With Age Comes Greater Risk of Hypothermia
CIRCULATORY SYSTEM
Vitamins Do Older Women Little Good
Smog Tougher on the Obese
Exercise May Blunt Salt's Effect on Hypertension
COSMETIC
Science May Banish Bad Hair Days
Health Tip: After Liposuction
Get Sugared!.... Its a sweet choice for hair removal
DENTAL, ORAL
Gummy Bears Join Cavity Fight
Rheumatoid Arthritis May Harm Gums
Gum Disease May Reactivate AIDS Virus
DIABETES
Formula Puts Doctor, Patient Glucose Readings on Same Page
Arthritis Hits More Than Half of Diabetics
'Standard' Glucose Test May Be Wrong One for Obese Children
DIET, NUTRITION
The Raw Food Diet
Low Vitamin A, C Intake Tied to Asthma Risk
More Educated Choose Healthier Foods, But Pay More
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Golf Course Insecticides Pose Little Danger to Players
Gas Stove Emissions Boost Asthma in Inner-City Kids
Small Doses of Carbon Monoxide Might Help Stroke Victims
EYE CARE, VISION
High Temps Degrade Contact Lens Solution: Study
Kids' Eye Injuries From Golf Clubs Rare But Severe
It's a Whole New Outlook for Cataract Patients
FITNESS
School Phys. Ed. Injuries Up 150 Percent
Community Exercise Programs Boost Seniors' Strength
Occupational Therapy Plus Exercise Benefits Osteoarthritis
GASTROINTESTINAL PROBLEMS
Peppermint Oil, Fiber Can Fight Irritable Bowel
Traditional Nonsurgical GERD Treatments Not Impressive
Gum Chewing May Speed Colon Surgery Recovery
GENERAL HEALTH
Household Insecticides May Be Linked to Autoimmune Diseases
Good Sleepers More Likely to Eat Right
Natural Oils Help Lower Body Fat For Some
HEAD & NECK
Ski Helmets Encouraged for All
Zen May Thicken Brain, Thwart Pain
Many Children Will Outgrow Headaches
HEALTH & TECHNOLOGY
Combating Myths About Seasonal Allergies
Airport Full Body Scanners Pose No Health Threat: Experts
'Cell Phone Elbow' -- A New Ill for the Wired Age
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
An Apple a Day May Help Keep Heart Disease Away
Too Much Red Meat May Shorten Life Span
Research Shows Genetic Activity of Antioxidants
INFECTIOUS DISEASE
Viral Infection Might Trigger High Blood Pressure
More Medicinal Uses for Pomegranate
Bacterial Infections May Succumb to Honey
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Folic Acid Reduces Infant Heart Defects
Safety Should Be Priority for Those Involved in Kids' Sports
Help Your Kids Stay Active
MEN'S HEALTH
Strenuous Daily Workout May Keep Cancer at Bay
Lots of Sex May Prevent Erectile Dysfunction
Sunlight May Help Protect Men From Kidney Cancer
MENTAL HEALTH
Bullying Seems to Affect Kids Years Later
Drink Away Dementia?
Reminiscing Helps Build Emotional Strength
PAIN
Acupuncture, Real or Fake, Eases Back Pain
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
PHYSICAL THERAPY
PREGNANCY
Before Conceiving, Take Folic Acid for One Full Year
Pregnant Women Exposed To Certain Pollutants Could Lower Childs IQ
Obesity May Affect Fertility in Young Womene
SENIORS
Exercise Benefits Even the Oldest Old
Eating Well And Keeping Active As You Grow Old Will Help You Stay Sharp
Rapid Weight Loss in Seniors Signals Higher Dementia Risk
SEXUAL HEALTH
SLEEP DISORDERS
Pay Attention to Signs That Say You're Too Fatigued to Drive
Moderate Aerobics May Ease Insomnia Symptoms
Daylight Savings: Not a Bright Time for All
WOMEN'S HEALTH
A Brisk Pace May Keep Stroke at Bay
Spice Compounds May Stem Tumor Growth
Postmenopausal Women With Breast Cancer Face Joint Issues
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Vitamin K Slows Insulin Resistance in Older Men

FRIDAY, Dec. 5 (HealthDay News) -- Vitamin K slows the development of insulin resistance in older men, but not women, a new study found.

Insulin resistance, a precursor to diabetes, occurs when the body cannot use insulin properly. As a result, glucose builds up in the blood. Overweight and obese people are prone to insulin resistance, because excess fat can interfere with insulin function.

The three-year study, by researchers at the Jean Mayer Human Nutrition Research Center on Aging at Tufts University in Boston, included 355 non-diabetic men and women ages 60 to 80. One group took daily multivitamins containing 500 micrograms of vitamin K (five times the recommended level), along with a calcium and vitamin D supplement. The other (control) group took no vitamin K supplementation but did receive the multivitamin and the calcium and vitamin D supplement. Both groups were told to keep eating their normal diets.

By the end of the study, the men who took vitamin K had improved insulin resistance and lower blood insulin levels than men in the control group. The study was published in the November issue of the journal Diabetes Care.

"Men who received vitamin K supplementation had less progression in their insulin resistance by the end of the clinical trial. Conversely, we saw progression in insulin resistance in women who received vitamin K supplementation, and in the men or women who were not given vitamin K supplements," study senior author Sarah Booth, director of the Vitamin K Laboratory at the research center, said in a Tufts news release.

Weight may explain why vitamin K supplementation didn't appear to improve insulin resistance in older women.

"In our study, there was a higher prevalence of obese or overweight women in the vitamin K supplementation group compared to the male supplementation group," Booth said. "Vitamin K is stored in fat tissue. If there is excess fat, vitamin K may not be readily available to cells that require it to process glucose."

The amount of vitamin K contained in the supplements used in the study is attainable by consuming a healthy diet, the researchers said. Brussels sprouts, broccoli, and dark, leafy greens (such as spinach and collards) are good sources of vitamin K.

More information

The U.S. National Institute of Diabetes and Digestive and Kidney Diseases has more about insulin resistance and pre-diabetes.



-- Robert Preidt



SOURCE: Tufts University, news release, Nov. 26, 2008

Last Updated: Dec. 05, 2008

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