Watch a preview of today's laugh-out-loud episode. Tom Bergeron joins Dr. Oz to host an episode of America's Funniest Health Videos. From funny bodily functions to hilarious medical mishaps, you won't believe what's been caught on tape! Plus, Dr. Oz answers big questions from his littlest fans.

Dr. Oz goes where he's never gone before. He's letting you eat fast-food and it's not what you expect. Learn which fast food meals you can eat under 500 calories while still enjoying the food you love.