ALLERGY, RESPIRATORY
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ALTERNATIVE MEDICINE
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Licorice May Block Absorption of Organ Transplant Drug
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ANIMAL CARE
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Separation Anxiety, Canine-Style
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Returning to the Road Tricky After Injury
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Osteoporosis May Raise Risk for Vertigo
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Acupuncture May Help Relieve Polycystic Ovary Syndrome
Wristbands May Lessen Nausea After Radiation
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When the Caregiver Becomes the Patient
More Than 60,000 Patients Risked Hepatitis Infections
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Drink a Little Wine, Live a Little Longer
Secondhand Smoke Quickly Affects Blood Vessels
COSMETIC
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Mouse Study Finds Molecule That Tells Hair to Grow
Wrinkle Fillers Need Better Label Warnings: FDA Panel
DENTAL, ORAL
Mom's Vitamin D Levels Affect Baby's Dental Health
An Oral Approach to Heart Disease
Study Links Osteoporosis Drugs to Jaw Trouble
DIABETES
Patients' Photos Help Boost Radiologists' Accuracy
'Standard' Glucose Test May Be Wrong One for Obese Children
Drug May Not Help Diabetes-Related Eye Damage
DIET, NUTRITION
Antioxidants Abound in Cereals, Popcorn, Whole-Grain Snacks
Potassium-Rich Foods May Cut Stroke, Heart Disease Risk
Mediterranean Diet Plus Exercise Lowers Alzheimer's Risk
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Childhood Food Allergies on the Rise
Showerheads Harbor a Bounty of Germs
Lead Exposure in Childhood Linked to Criminal Behavior Later
EYE CARE, VISION
Americans Losing Sight of Eye Health
Glaucoma Associated With Reading Impairments in Elderly
Unconscious Learning: In the Eye of the Beholder?
FITNESS
The Juice From Beetroots May Boost Stamina
Moderate Aerobic Exercise Lowers Diabetics' Liver Fat
Run for Your Life
GASTROINTESTINAL PROBLEMS
HRT Use Raises Risk of Stomach Trouble
Bowel Prep Harder on Women Than Men
New Guidelines Issued for Management of IBS
GENERAL HEALTH
Olde Time Medicine Therapy May Prevent Alcoholic Relapse
Play Creatively as a Kid, Be a Healthier Adult
Fructose Boosts Blood Pressure, Studies Find
HEAD & NECK
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
Using Light Therapy to Silence Harmful Brain Activity
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Imaging Sheds Light on How Acupuncture Works
HEARING
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Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Omega-3, Some Omega-6 Fatty Acids Boost Cardiovascular Health
Potassium-Rich Foods May Cut Stroke, Heart Disease Risk
Vigorous Exercise Cuts Stroke Risk for Men, Not Women
INFECTIOUS DISEASE
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Swine Flu Is Now a Pandemic Says W.H.O.
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INFERTILITY
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KID'S HEALTH
Mom's Extra Pregnancy Pounds May Raise Child's Heart Risks
Working Intensely Early on May Help Autistic Kids
Music May Temper Pain in Preemies
MEN'S HEALTH
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Countdown to Hair Loss
Lots of Sex May Prevent Erectile Dysfunction
MENTAL HEALTH
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Bullying Seems to Affect Kids Years Later
PAIN
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Alleviating Rheumatoid Arthritis
Tai Chi May Help Ease Fibromyalgia
PHYSICAL THERAPY
PREGNANCY
Breast-Feeding Benefits Moms and Babies
Sleeping Could Help Women Lose The Baby Fat
Acupuncture May Ease Depression During Pregnancy
SENIORS
Laughter Can Stimulate a Dull Appetite
Many Cancer Survivors Don't Adopt Healthy Lifestyle
High-Impact Activity May Be Good for Old Bones
SEXUAL HEALTH
SLEEP DISORDERS
Better Sleep, Grades Seem to Go Up
Sleeping Could Help Women Lose The Baby Fat
Pay Attention to Signs That Say You're Too Fatigued to Drive
WOMEN'S HEALTH
Prenatal Stress May Boost Baby's Asthma Risk
Green Tea May Help Treat Uterine Fibroids
Caffeine in Pregnancy Associated With Low Birth Weight Risk
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The Juice From Beetroots May Boost Stamina

(HealthDay News) -- Beetroot juice can boost physical stamina and increase exercise endurance by up to 16 percent, a new British study shows.

The researchers found that nitrate in beetroot juice reduces oxygen uptake to a degree that can't be achieved by any other means. The findings could benefit endurance athletes, elderly people and those with cardiovascular, respiratory or metabolic diseases, the study authors suggest.

The study included eight men, aged 19 to 38, who drank 500 milliliters a day of organic beetroot juice for six consecutive days. They then completed a series of tests on an exercise bike. The same tests were repeated after the men drank the same amount of a placebo (blackcurrant cordial) for six days.

After drinking the beetroot juice, the men were able to cycle for an average of 11.25 minutes -- 92 seconds longer than after consuming the placebo drink. The men also had a lower resting blood pressure after they drank the beetroot juice, the researchers found.

The study was published Aug. 6 in the Journal of Applied Physiology.

"Our study is the first to show that nitrate-rich food can increase exercise endurance," corresponding author Andy Jones, a professor in the University of Exeter's School of Sport and Health Sciences, said in a news release from the university.

"We were amazed by the effects of beetroot juice on oxygen uptake because these effects cannot be achieved by any other known means, including training. I am sure professional and amateur athletes will be interested in the results of this research. I am also keen to explore the relevance of the findings to those people who suffer from poor fitness and may be able to use dietary supplements to help them go about their daily lives," Jones added.

He and his colleagues don't know the exact mechanism that causes nitrate in beetroot juice to increase stamina, but they suspect that nitrate may turn into nitric oxide in the body, leading to a reduction in oxygen uptake and making exercise less tiring.

SOURCES: University of Exeter, news release, Aug. 6, 2009