Skip to content
My WebMD Sign In, Sign Up

Weight Loss & Diet Plans

Font Size

All Calories Not Created Equal, Study Suggests

Low-Fat Eaters Burned Fewer Calories, Were More Likely to Regain Lost Weight

Stress Hormone Levels Higher in Low-Carb Eaters

Levels of the stress hormone cortisol and C-reactive protein -- an indicator of inflammation in the body -- were higher during the low-carb phase of the study.

"The metabolic benefits of this diet may be undermined by more inflammation and higher cortisol, both of which can increase [heart disease and stroke] risk over time," Ludwig says.

Nutritionist Elisabetta Politi, MPH, calls the study intriguing and deserving of further research. Politi is the nutrition director of the Duke Diet and Fitness Center in Durham, N.C.

"The idea that the type of calories people take in has a direct impact on the amount of energy they expend is certainly intriguing and worth exploring further," she tells WebMD.

She says since the participants were only followed for the three months that they followed the highly controlled eating plans, it is not clear if one diet really is better than another for maintaining weight loss.

"It makes sense that people would be able to stick with a low-glycemic-index diet better because it is less restrictive, but that wasn't really shown in this study," she says.

1|2

Today on WebMD

vegetables
Video
Woman trying clothes / dress
Assessment
 
Woman looking at reflection in mirror
Article
Hot cup of coffee
Quiz
 
woman shopping fresh produce
Video
butter curl on knife
Quiz
 
eating out healthy
Article
Smiling woman, red hair
Article
 
6-Week Challenges
Want to know more?
Chill Out and Charge Up Challenge – How to help your tribe de-stress and energize.
Spark Change Challenge - Ready for a healthy change? Get some major motivation.
I have read and agreed to WebMD's Privacy Policy.
Enter cell phone number
- -
Entering your cell phone number and pressing submit indicates you agree to receive text messages from WebMD related to this challenge. WebMD is utilizing a 3rd party vendor, CellTrust, to provide the messages. You can opt out at any time.
Standard text rates apply
thumbnail_woman_tossing_spinach
Video
lunchbox
Article
 
What Girls Need To Know About Eating Disorders
Article
teen squeezing into jeans
fitfor Teens
 

Special Sections