• Calorie Control Council Representing the low-calorie and reduced-fat food and beverage industry.

• CaloriesCount.com Online weight management, dieting and healthy lifestyle program featuring meal plans, recipes, calorie calculators, chat groups, and information from weight loss experts.

• Camp La Jolla residential weight loss and fitness camp for children, teens, and adults. Specializing in diet, nutrition, exercise, and behavior modification.

• CarboH 14-day lifetime diet plan developed by a licensed dietitian/nutritionist. Vegetarian friendly.

• Catabolic Diet

• ChangeOne: The Reader's Digest Diet offers an approach for modifying diets to promote healthy weight loss.

• ChaseFreedom attack weight loss demons with mental preparation, balanced nutrition, and exercise.

• Choice Diets, Inc. offering lowfat recipes to make weight loss a pleasure.

• Committed to Kids Pediatric Weight Management Program management of childhood obesity.

• Complete Weight Loss offers customized weight loss programs, fitness plans, personal evaluations, and support.

• Curves International "Thirty minute fitness and weight loss centers.

• CyberDiet.com Includes a do-it-yourself nutritional profile to let you calculate your ideal body weight.

• Dee Wolk's Weight Solution offering a non-diet weight loss program, including audio tapes and cookbook.

• Diet 4U Online offers weight loss, weight gain, high protein, vegetarian, low fat, and zone diets.

• Diet Center offers a catalog with approved products, programs, and services for weight loss.

• Diet Fast offering a regimen of supplements and shakes.

• Diet Forum offers weight loss program, newsletter, recipes, articles, and more.

• Diet Pills Lose Weight Fast Fat guide to prescription diet pills, losing weight, fitness, and exercise.

• Diet Riot offering a humorous, non-diet approach to permanent weight loss.

• Diet Supplements Revealed offers review of common weight loss supplements.