Fitness trainer JJ attempts to gain 60 pounds in order to inspire an overweight client who hopes that a slimmer personal appearance will improve his profile with adoption agencies.

Fitness trainer Steve tries to gain as much weight as possible to demonstrate to an overweight mother of three that it's not selfish to take care of oneself.

Trainer Adonis attempts to gain 70 pounds in order to teach his client Alissa how to turn a temporary diet into a lifestyle.

A fitness trainer with a degree in dietetics and 17 years of experience takes on a foodie who wants to lose weight for his upcoming wedding.

Personal trainer Corey gains 60 pounds in an attempt to motivate Raela, a homebody and preacher's daughter, to reach her fitness goals.

A chef wants to get healthy to gain energy and keep up with his restaurant business and his bride to be.

A gym owner in southern Florida destroys his body in order to inspire a 380-pound Army veteran to change his unhealthy ways.