New York, NY (NBC VOD) — Lisa Smith, 25, shared her amazing weight loss story this morning on NBC's Today Show with Kathy Lee and Hoda.

 Smith has dropped over 140 pounds in a year and a half time.

How did she do it?

Mostly a smart change in diet.

Smith will be back in the Valley tomorrow and News Center 23 reporter Erin Murray will be bringing us her full success story later this week.