Bob Harper

Personal Trainer & Former Host of "The Biggest Loser;" Heart Attack Survivor

Maintaining A Healthy Body & Mind | Bob Harper Q&A

Dara Torres

12x Olympic Medalist, NYT Bestselling Author, Entrepreneur & Healthcare Reform Advocate

Chris Powell

Trainer and Transformation Specialist on ABC's "Extreme Makeover: Weight Loss Edition"

David Meinz

Health Promotion Expert Who Helps People Enhance Their Personal & Professional Productivity By Staying Healthy

David Meinz | America’s Personal Health Improvement Expert

Ethan Zohn

Winner of "Survivor" Africa, 2x Cancer Survivor, Stem Cell Transplant Recipient, Social Entrepreneur, Philanthropist, Cancer Research Advocate, Former Pro Soccer Player, Sports Broadcaster & TV Personality

Richard Simmons

Fitness Instructor, Actor, Video Producer Known for "Sweatin' to the Oldies" Aerobics Videos

Larry North

Leading Expert in Health, Fitness, Nutrition and Weight Loss

Jillian Michaels

Leading Fitness Expert, Certified Nutritionist, Renowned Life Coach & Powerful Entrepreneur

Derek Hough

Dancer, NYT Bestselling Author, Emmy Award Winner for Outstanding Choreography & Six-Time Champion of ABC's "Dancing with the Stars"

Rocco DiSpirito

James Beard Award-Winning Chef, Healthy Lifestyle Advocate & New York Times Bestselling Author

Drew Learns Chef Rocco Dispirito's 5-Minute Shrimp Dish

Mark Ballas

Dancing with the Stars Champion & Mental Health Activist

Denise Austin

Fitness Expert, Author & Video Hall of Famer

Shane Ennover

Personal Trainer at ConBody; Founder of Addicts Athletics

Dennis Kelly

Author, Peak Performance Master Trainer, Personal Growth Expert

Josh Peck

Actor & Social Media Influencer

Jay Cardiello

Personal Trainer, Author & Globally-Recognized Fitness and Nutrition Expert

Larysa Didio

Celebrity consultant in nutrition and healthful living.

Dr. Mehmet Oz

Cardiothoracic Surgeon; Host of "The Dr. Oz Show;" Columbia University Professor & Author

Chris Herren

Former NBA Player & Speaker on Substance Abuse Disorder and Wellness

Toren Volkmann

Alcohol Awareness Advocate, Reducing Stigmas of Addiction, and Addressing the Need for More Recovery

Mark Sterner

Mark has been a keynote presenter for the Northeastern Greek Leadership Association.

Tracy Anderson

Fitness Pioneer, Entrepreneur & Author, Founder of The Tracy Anderson Method

Tracy Anderson shares moves to work your whole body

Kim Lyons

Fitness Expert, Former Trainer on "The Biggest Loser"

Daphne Oz

Emmy Award-winning Television Host, New York Times Bestselling Author, Chef & Entrepreneur

Keri Glassman

Nutritionist, Author, Founder and CEO of Nutritious Life

Dr. Holly G. Atkinson

Award-Winning Medical Journalist

Jason Wahler

TV Personality, Known for "Laguna Beach" "The Hills" & "Celebrity Rehab", Recovery Advocate

Chris Johnson

CEO & Founder of On Target Living; Teaches Audiences About the Importance of Resting, Eating Well and Exercising

Julie Hadden

Author, speaker & star of The Biggest Loser Season 4

Paula Zahn

Distinguished News Anchor & Nine-Time Emmy Award Winner