A teacher claims to have found the “fountain of youth” thanks to an extreme diet which sees him eat almost nothing but TACOS.

Michael Kentros, 52, says he looks ten years younger, is 50lbs lighter and has a better sex life than ever since he began eating 12 homemade tacos a day.

The former junk food addict used to gorge on McDonald's breakfasts, steak sandwiches for lunch and pizza for dinner, and snack on Cheetos, chocolate and candy.