NutritionQuest -- nutritionquest.com Nutritionquest is the sole source provider of the widely used and extensively validated suite of Block diet and physical activity assessment tools. Our questionnaires have been used in thousands of research studies, and have been completed over a million times. Questionnaires are available for both adults and children, in multiple languages, in machine readable paper/pencil format, in a web based format, as well as an offline, electronic format. Analysis of nutrients, food groups, and physical activity is conducted using the Nutritionquest Data-On-Demand program, a secure, turn-key system for real-time analysis and reporting. The Turnaround Health division of Nutritionquest provides tailored web- and smartphone-based lifestyle intervention programs with proven efficacy. Our latest program, Alive-PD, has been shown in a rigorous, randomized controlled trial to significantly improve glucose control among patients with pre-diabetes.