Actor Kellan Lutz uses this new app to prepare for any movie role

ST. LOUIS - You know actor Kellan Lutz from his starring role in "The Legend Of Hercules", "Twilight Saga", as well as other films. Lutz spoke to Fox 2 News to discuss the new digital health app "Lifesum" that combines technology with psychology to give you a personalized health plan.

For more information: Lifesum.com/Kellan