Davis Analytics http://ourworld.cs.com/_ht_a/DietDr
Tool to monitor diet for nutrition, fitness and weight loss or gain. Incorporates the USDA food nutrition database of over 6200 different foods. Free demo for download.
DietMate http://www.DietMate.com
Palm-sized computer designed for weight-loss, cholesterol reduction, and hypertension control.
DietOrganizer http://www.dietorganizer.com
Software that counts calories and tracks nutrition and exercise. Choose from 6000 foods and 200 exercises. Chart and report progress.