When he was just 15, Nathan Hewitt weighed 146Kg.
He decided to turn his life around after he was unable to ride a roller coaster at Alton Towers after the safety barrier would not go over him.
At the time he was said to be one of Britain's most obese children.
The now 23 year old has lost half his bodyweight, 70kg, and is keen to help other obese children.
He has been granted £6,000 from the welsh government to start up his own fitness firm in order to help others.
He said ‘A lot of obese children don’t think they can make the changes they need to lose weight but I’m there to show them they can'.
A truly inspiring and motivating story.