Trial Search Results

Comparison of Popular Weight Loss Diets

This study will compare the safety and effectiveness of three popular weight loss plans. These plans will be compared with the USDA Dietary Guidelines.

Stanford is currently not accepting patients for this trial.

Lead Sponsor:

National Center for Complementary and Integrative Health (NCCIH)

Collaborator: Community Foundation of Southeastern Michigan

Stanford Investigator(s):


  • Behavioral: Atkins diet (extremely low carbohydrate)
  • Behavioral: Zone diet (low carbohydrate, high protein)
  • Behavioral: Ornish diet (very low fat)


Phase 2


Inclusion Criteria

   - Body mass index (BMI) between 27 and 40 kg/m2

   - Weight stable for last 2 months

   - Not actively on a weight loss plan

   - No plans to move from the area over the next 2 years

   - Willing to accept random assignment

Exclusion Criteria

   - Pregnant or breastfeeding

   - Within 6 months of giving birth or planning to become pregnant in the next 2 years

   - Diabetes (type 1 or 2) or history of gestational diabetes

   - Renal or liver disease, active neoplasms, or recent myocardial infarction

   - Hyper- or hypothyroidism

   - Lipid lowering medications or medications known to affect weight/energy expenditure

   - Excessive alcohol intake (self-reported, > 3 drinks/day)

   - Postmenopausal, including surgical menopause

   - Currently under psychiatric care or severely clinically depressed (> 17 on Beck

Ages Eligible for Study

30 Years - 50 Years

Genders Eligible for Study


Not currently accepting new patients for this trial

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305
Not Recruiting