Nine seeks to improve the lives of six clinically obese and overweight people who have lost the confidence of their former selves.
In combination with the assistance of doctors, dieticians and fitness experts, as they begin a journey of indefinite length to help regain the vitality of their pre-weight gain selves.
Nine are keen to emphasise that Big isn't a "reality competition" aimed to get weight off quickly, instead the aim of the program is a gradual overhaul of the six contestants' lives.
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