The experimental group will have a nutrition program based solely on measured resting metabolic rate. The nutrition plan will be a specific calorie level that will promote a 1-2.5 lb per week weight reduction. No experimental participants' nutrition plan will be below 1200 Kcal/day for women or 1600 Kcal/day for men. Second, the experimental group will receive a downloadable copy of a computerized nutrition software program (BalanceLog: Microlife USA, Inc. Golden, CO) that functions s on a Windows 2000-XP or Palm operating system.

Standard 1200 kcal/day diet (women) 1600 kcal/day diet (men) using a sample 3-day menu program. The diet will be follow current government based recommendations for carbohydrates (i.e. 55%), fat (30%), and protein (15%). Study participants will receive a standard paper-based food and exercise journal

Use of measured resting metabolic rate from indirect calorimetry for personalized diet program and use of a computer application for journalizing food and exercise.