Lots of free information was available and health professionals tested teenagers for diseases such as HIV, high blood pressure and diabetes.
Organizers said their goal was to prevent problems before they begin.
"If we can get our students to be more health conscious as young people then they'll grow into healthier adults and in turn we'll have healthier communities. A lot of the things that we do as a community are things that we learned from those who came before us," said Bryan Echols, MAGIC executive director.
Organizers expected as many as 2,000 teenagers to attend today's event.