Keep Asthma, Allergies at Bay for the Holidays
Air Quality Better in Northeast, Midwest
Overweight Moms More Likely to Have Asthmatic Kids
Garlic Yields Up Its Health Secret
Tai Chi: An Ideal Exercise for Many People with Diabetes
Awareness of Alternative Therapies May Be Lacking
Beware of Dog Bites
Animals Respond to Acupuncture's Healing Touch
Separation Anxiety, Canine-Style
Yoga Can Ease Lower Back Pain
Drinking Cuts Rheumatoid Arthritis Risk
Body Fat, Muscle Distribution Linked to RA Disability
Smoking Exposure Now Linked to Colon, Breast Cancers
Tanning Beds Shown To Raise Cancer Risk, Study Says
Vitamin D May Lower Colon Cancer Risk
Undoing the 'Big Baby' Trend
Mom's Smoking May Lead to SIDS
Reduce Suffering, Urge Heart Failure Patients and Caregivers
An Apple a Day May Help Keep Heart Disease Away
Laughter Can Boost Heart Health
Mercury in Fish Linked to High Blood Pressure
The Acne Drug Accutane More Than Doubles Depression Risk
Health Tip: After Liposuction
Mouse Study Finds Molecule That Tells Hair to Grow
Health Tip: At Risk for Gingivitis
Gummy Bears Join Cavity Fight
A Sweet Way to Shield Baby's Teeth
Abnormal Heart Rhythm Boosts Death Risk for Diabetics
Exercise Protects Black Women From Type 2 Diabetes
Older Diabetics With Depression Face Higher Death Rate
Six Healthy-Sounding Foods That Really Aren't
Brown Rice Tied to Better Heart Health in Study
Dark Chocolate May Lower Stroke Risk
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
Ozone-Depleting Inhalers Being Phased Out
Gas Cooking Might Up Your Cancer Risk
EPA Alerts Seniors to Carbon Monoxide Dangers
Ordinary Chores Cause Half of All Eye Injuries
Guard Kids' Eyes Against Long-Term Sun Damage
Eye Problems, Hearing Loss May Be Linked
Any Exercise Good After a Heart Attack
Football Can Shrink Players
Antioxidants Blunt Exercise Benefit, Study Shows
New Yogurt May Ease Stomach Ulcers
HRT Use Raises Risk of Stomach Trouble
Olive Oil May Protect Against Bowel Disease
Research Confirms How Valuable A Healthy Lifestyle Can Be
Dr Churchill & Ashley Pelton Interview 1 of 4
15-Point Test Gauges Alzheimer's Risk
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
Zen May Thicken Brain, Thwart Pain
Study Suggests Link Between Cell Phones and Brain Tumors
Save Your Aging Brain, Try Surfing The Web
Airport Full Body Scanners Pose No Health Threat: Experts
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
Irregular Heartbeat Tied to Alzheimer's Disease
Omega-3, Some Omega-6 Fatty Acids Boost Cardiovascular Health
Most Fast-Food French Fries Cooked in Unhealthiest Oil
Bacterial Infections May Succumb to Honey
Older Adults May Have Some Immunity to Swine Flu
More Medicinal Uses for Pomegranate
Obesity May Affect Fertility in Young Womene
School Phys. Ed. Injuries Up 150 Percent
St. John's Wort Doesn't Work for ADHD
School Meals Need to Get Healthier
Low Iron Levels Cut Cancer Risk in Men With PAD
Countdown to Hair Loss
More Vitamin C May Mean Less Chance of Gout
Consciousness Helps the Mind and Body Work Together
Living Alone Increases Odds of Developing Dementia
The Unmedicated Mind
Acupuncture, Real or Fake, Eases Back Pain
Are We Exercising Pain Away? Not So Much.
Alleviating Rheumatoid Arthritis
Alternative Treatments May Boost IVF Success
Expectant Mom's Exercise Keeps Newborn's Birth Weight Down
Exercise As Well As Acupuncture, May Ease Polycystic Ovarian Syndrome
Exercise Helps Reduce Falls in Young and Old
Common Antioxidant Might Slow Parkinson's
Could Your Cell Phone Help Shield You From Alzheimer's?
Pay Attention to Signs That Say You're Too Fatigued to Drive
Exercising Throat Muscles May Relieve Sleep Apnea
6 to 8 Hours of Shut-Eye Is Optimal for Health
Exercise During Pregnancy Keeps Newborn Size Normal
Caffeine in Pregnancy Associated With Low Birth Weight Risk
Health Tip: Be More Comfortable During Childbirth
Add your Article

Bone Loss Stable on Restricted Calorie Diet

TUESDAY, Sept. 23 (HealthDay News) -- Overweight adults who eat a low-calorie diet that includes proper nutrition can lose weight and fat without experiencing significant bone loss, a new study says.

The study, by the team at Pennington Biomedical Research Center in Baton Rouge, La., included 46 healthy, overweight men and women (average age 37) assigned to one of four groups: The 11 participants in the control group ate a healthy diet; 12 others consumed 25 percent fewer calories than they expended per day; 12 created a 25 percent energy deficit by eating fewer calories and exercising five days a week; and 11 people ate a low-calorie diet (890 calories) a day until they achieved a 15 percent weight loss, at which time they switched to a weight maintenance plan.

All the diets contained the recommended levels of vitamin and minerals, and contained 30 percent fat, 15 percent protein and 55 percent carbohydrates, based on American Heart Association guidelines.

After six months, people in the control group had an average body weight reduction of 1 percent, compared with 10.4 percent in the calorie restriction group, 10 percent in the calorie restriction plus exercise group, and 13.9 percent in the low-calorie diet group.

At the start and end of the study, the researchers measured the participants' bone mineral density and blood markers of bone resorption and formation -- processes by which bone is broken down and regenerated on a regular basis.

"Compared with the control group, none of the groups showed any change in bone mineral density for total body or hip," the study authors wrote.

After six months, markers of bone resorption were increased in all three intervention groups. Markers of bone formation were lower in the calorie restriction group but remained the same in the low-calorie diet or calorie restriction plus exercise group.

"Our data do not support the notion that extreme weight loss (more than 10 percent) over short periods (three months) has a worse prognosis on bone health than gradual weight loss achieved over six months by moderate calorie restriction with or without aerobic exercise," the researchers wrote. "We speculate that in young individuals undergoing calorie restriction, minor adjustments in bone occur as a normal physiological adaptation to the reduced body mass. Further studies of longer duration are warranted and should include an assessment of bone architecture to ensure that bone quality is preserved with weight loss."

The study was published in the Sept. 22 issue of the journal Archives of Internal Medicine.

More information

The U.S. National Institute of Diabetes and Digestive and Kidney Diseases has more about weight loss.

-- Robert Preidt

SOURCE: JAMA/Archives journals, news release, Sept. 22, 2008

Last Updated: Sept. 23, 2008

Copyright 2008 ScoutNews, LLC. All rights reserved.

More articles at