Your health questions answered!
Custom Search
Home Walking Calories Weight & Height

High-Protein Diets And Kidney Damage

High-protein diets like that of the popular Atkins diet may accelerate the loss of kidney function in people with early kidney problems. However, these diets do not seem to affect people with normal kidneys, suggests new research.

The problem is, as many as 20 million Americans are at risk for reduced kidney function but don't know it. Therefore, people on high-protein diets may be unknowingly damaging their kidneys.

"There are no symptoms attributable to this early kidney disease, but it's very prevalent," says Eric Knight, MD, MPH, lead researcher of the study and a doctor at Brigham and Women's Hospital in Boston. Those at highest risk are people with high blood pressure, diabetes, or are older than age 65, he says.

Even in his study, about one in four of the 1,624 women studied had mildly reduced kidney function that produced no obvious symptoms. It's the latest chapter in the ongoing Nurses Health Study, which has already documented that frequent meat consumption may increase risk of colon cancer.

The women studied were questioned about their consumption of meat and other foods, and other health risks were also evaluated. They were tracked for 11 years, and researchers found that those with mild kidney problems who ate a high-protein diet - especially protein from meat - had a faster loss in function. No such association was noted among women with these kidney problems who got most of their protein from dairy foods. However, high meat consumption didn't seem to exacerbate problems in those with healthy kidneys.

"We saw a significantly measurable association in those consuming about 1.3 grams of animal protein for each kilo of body weight," Knight asserts. "That level is not as high as the protein you get from animal sources in the Atkins diet. So clearly a person who is undertaking a high-protein diet such as Atkins should have a kidney function test and carefully be monitored while following this diet."

Are high-protein diets safe for those with normal kidney function? "If the Atkins diet was the only way of losing weight, perhaps the benefits would outweigh the risks," he says. "Obviously, extreme obesity is a risk factor of kidney disease. But there are other health risks associated with high consumption of meat products, such as too much animal fats and saturated fats that increase the risk of heart disease.

I think the message of our study is that people with mild reduced kidney function should be careful to moderate their intake of meat overall and very carefully consider the risk and benefits before starting an Atkins-type diet."

When beginning the Atkins plan, dieters typically eat about 2 grams of animal protein for each kilogram of body weight, says Colette Heimowitz, director of education and research for Atkins Nutritionals. That means a woman weighing 150 pounds would consume about 135 grams of protein each day - nearly 40% more than what was typically consumed by those in Knight's study. In later stages of the high-protein diet, the amount of protein is reduced to levels consumed by those in Knight's study.

"We tell people they shouldn't do this program without first getting a physical and be monitored by their doctors, and those with mild renal insufficiency need to be under a doctor's supervision because they can't take in as much protein as the program offers in the induction phase", Heimowitz reports. "They can still follow an Atkins-type weight-loss plan by choosing healthy fats and healthy carbohydrates but will lose weight at a slower pace."


Other Related Articles

Good And Bad Carbs

High-Protein Diets May Damage Kidneys

High Protein Or High Carb Diet?

Moderate Fat Diet Better For Heart Health

Weight Loss Effects Of Dairy

Custom Search

Home Body Mass Index Calorie Counter Weight Management
FAQ About Us Contact Us Weight, Height & BMI

Health Tools
Body Mass Index
Calories Burned While Walking
Calories Composition Converter
Daily Calorie Needs
How Much Water To Drink
Optimal Heart Rate Chart
Waist To Hip Ratio
Weight And Height Converter
What You Should Weigh
Rest And Yoga
Benefits Of Sleep And Naps
Chronic Sleep Deprivation
Good Sleep Hygiene
Meditation As Therapy
Better Sleep For Losing Weight
Sweating While Sleeping
Yoga For Quieting Minds
Yoga For Sleeplessness
Avoiding Dehydration
Exercise For Over-Forties
Combine Weights And Aerobics
Exercise & C-Reactive Protein
Home Exercise Equipment
Intensity Of A Workout
Pilates Strengthens
Setting Exercise Goals
Starting A Fitness Program
Types Of Physical Fitness
Vitamin E, Exercise And Aging
Vitamin E And Soreness
Weight Lifting And Weight Loss
Weight Training For Aging
When Sports Drinks Necessary
Exercise Benefits
Approaches To Weight Loss
Balance With Bosu Ball
Benefits Of Being Fit
Delaying Dementia
Feeling And Looking Younger
Fit In Body And Mind
Improving The Quality Of Life
Keeping Weight Off
Losing Weight Permanently
Metabolism & Weight Loss
Pre-Diabetic Syndrome
Relief For Joint Aches
Run For Your Heart
Stroke Risks
Toning The Thighs
Weight Management
Work-Outs And Personality
Diet And Nutrition
Age-Related Supplements
Boost The Immune System
Breakfast And Weight Control
Breakfast, Obesity, Diabetes
Cinnamon For Diabetes
Dietary Approaches To Diabetes
Essential Fatty Acids
Glycemic Index
Good And Bad Carbohydrates
Protein And Kidney Damage
High Protein Or High-Carb Diet?
Moderate Fat For Health
Smoking And Impotence
Super Foods For Anti-Aging
The Right Number Of Calories
Vegetarians Live Longer
Weight Loss Effects Of Diary
Blood Pressure Control
Abdominal Fat And Stroke Risk
Approaches To Pressure Control
Blood Pressure Control
Sesame Oil And Blood Pressure
Silent Strokes And Alzheimer's
Warning Signs Of Stroke
Cancer Strategies
Exercise And Colon Cancer
Get Fit To Avoid Cancer
NSAIDs For Colon And Prostate
Protein Prevents Colon Cancer
Double Diabetes
Green Tea For Diabetes
How To Lessen Diabetes Risk
Pre-Diabetic Syndrome
Social Psychology
Anti-Social Behaviour And Health
Overcoming Winter Blues
Social Contacts & Health
Women's Issues
Kegel Exercises
Soy And Menopause
Sugar And Diabetes In Women
Toning The Thighs
Urinary Tract Infections
Women's Weight Management