Striving to make Mt. Healthy, OH, healthier, sheriffs, teachers, a day care center, school bus drivers and the Mayor signed up to put Ester-C® to the test in a 50-day trial. With school closings throughout the city due to colds and flu, residents agreed to supplement their normal diets with 500 milligrams of Phoenix, AZ-based Zila Nutraceuticals’ Ester-C twice daily for 50 days and complete multiple in-depth questionnaires.