Robin Miller

Host of "Quick Fix Meals with Robin Miller" on Food Network, Nutritionist

Jo Frost

Jo Frost is an English nanny and the central figure of the reality television programme Supernanny, of which there is both a British and an American version.

Kate Gosselin

Reality Television Personality & Author

Ruben Studdard

American Idol Winner; The Biggest Loser Contestant; Dubbed the "Velvet Teddy Bear"

Jennifer Widerstrom

Newest Trainer on "The Biggest Loser;" Former Star of NBC’s "American Gladiators"

Tunde Oyeneyin

Peloton Instructor & Makeup Artist; Founder of SPEAK Instagram Live Series

Sherri Shepherd

Actress, Comedian, Former Co-host of "The View" & Host of the "Two Funny Mamas" Podcast

Jillian Michaels

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

Valerie Bertinelli

Actress & Jenny Craig Brand Ambassador; Starred in Sitcom "Hot in Cleveland"

Joy Behar

Comedian, Actress & Former Co-Host of "The View"

CC Sabathia

Former MLB All-Star Pitcher & World Series Champion; Co-Host of "R2C2"

CC Sabathia Reflects on Rehab and his Legacy

Delta Burke

Actress & Comedian; Known For "Designing Women"

Chrissy Metz

Actress & Singer Best Known for NBC's "This Is Us"

Anthony Anderson

Actor, Producer, Comedian, Writer & Game Show Host, Best Known for ABC’s "Black-ish"

Wynonna Judd

Grammy-Winning Country Superstar, Author and Contestant on "Dancing With the Stars"

Ann Wilson

American musician, Lead Singer and Songwriter of the Rock Band Heart

Trisha Yearwood

Emmy Award-Winning Cooking Show Host & NYT Bestselling Author; Country Music Artist

Susan Albers, Psy.D.

Best-selling Author; Clinical Psychologist at the Cleveland Clinic; Specialist in Eating Issues, Weight Loss, & Body Image

Jayson Calton, Ph.D.

Co-Founder of Calton Nutrition, Co-Author of "Naked Calories," "Rich Food Poor Food" & "The Micronutrient Miracle"

Poonacha Machaiah

Co-Founder, JIYO