Results of a 6 Month Adherence to a Very Low Carbohydrate Diet Program
Author: Dr. Mark Johnson
Date Posted: December 02, 2006
A team of researchers at Duke University Medical Center has conducted
an ongoing weight-loss study that entailed monitoring 50 subjects
who were following the Atkins Nutritional Approach. The individuals
were monitored throughout the initial six-month period, with data
that included results of laboratory tests, weight/waist measurements,
diet composition, symptoms and side effects. The results, published
in the peer-review American Journal of Medicine, suggest that the
ANA is not only effective in weight loss and management, but manifests
significant improvement in a number of cardiovascular disease risk
factors.
Key points:
1. The overweight or obese healthy volunteers who wanted to lose
weight were placed on a very low-carbohydrate diet (less than 25g/day
of carbohydrates), including nutritional supplementation, recommendations
about exercise, and attendance at group meetings to determine the
effect of a very low-carbohydrate diet program with no limit on
caloric intake.
2. Forty-one individuals or 80 percent followed the nutrition
regimen for the duration of the study.
3. The regimen led to sustained weight loss during the six-month
period. Body weight decreased significantly by 10.3 percent (or
an average of almost 20 pounds) from the beginning to the end of
the study. Body mass index decreased by 3.2 kg/m2. Average percentage
of body fat significantly decreased by 2.9 percent.
4. Total cholesterol level decreased by 11mg/dL; low-density lipoprotein
cholesterol level decreased significantly by 10 mg/dL; triglyceride
level decreased with a high level of significance by 56 mg/dL; high-density
lipoprotein (HDL) cholesterol level increased significantly by 10
mg/dL; and the cholesterol/HDL cholesterol ratio was also significantly
decreased by 0.9 units.
5. There were no serious adverse effects. Further controlled research
is warranted.
In addition to the ongoing weight-loss study, Duke researchers
also performed a two-armed, randomized controlled trial to study
120 obese hyperlipidemic adults. The study compared the controlled
carbohydrate Atkins Nutritional ApproachTM to the American Heart
Association (AHA) Step I diet advocated by many health professionals
for cardiovascular health. In each arm of the study, 60 subjects
were monitored for clinical values, side effects, body composition
and bone-mineral density. Food records provided measures of caloric
intake as well as carbohydrate, protein and fat intake. This comparative
study demonstrated that subjects on a controlled carbohydrate eating
program lost both more weight and more body fat than subjects following
a low-fat diet. In addition, those subjects controlling their carbohydrate
intake showed a decrease in triglycerides and total cholesterol
as well as an increase in HDL (“good”)cholesterol levels. The full
results of this research, including some groundbreaking data regarding
our expanding knowledge on the role of cholesterol in heart disease,
has been submitted for publication in scientific journals.
About The Author
Mark Johnson is one of the administrators of Free
Atkins Diet Recipes.
Article Source: JKD Street Combat
- online collection of Nutrition articles.
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