A self-confessed food addict from Southsea has managed to shed four stones and is determined to help others also lose weight.
27-year-old Chris Mardin has lost weight before but then piled it back on. He once weighed more than 33 stones and couldn't walk more than 200 yards.
He is now 29 stones and is being supported by experts in obesity at the Queen Alexandra Hospital in Portsmouth.
Watch the video to see Chris' reaction when our reporter Kerry Swain showed him what he used to eat every day:
Chris wants a career in health and fitness and help others struggling to control their eating.
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