Mabbutt was born in
Bristol. He is married to Kathy, and has two daughters. Mabbutt has
type 1 diabetes, and became an icon for many children with the condition. He famously appeared on the
BBC's children's television programme
Blue Peter where he demonstrated injecting
insulin into an orange to show how he dealt with his condition on a daily basis. In 2013, Mabbutt had surgery to save his left leg, following a bout of
peripheral arterial disease, brought on by his diabetes. Following the surgery, he can no longer run or kick a ball. Mabbutt was awarded an Hon. Master of Science degree from the University of Hertfordshire in 1998, an Hon. Doctor of Health degree from the University of Bath in 2018 and an Hon. Doctor of Law degree from the University of Bristol in 2019. He served as an ambassador for the
2010 World Cup Finals in South Africa. He is also working with the Deloitte
Street Child World Cup, training and encouraging street children and ex-street children in football and for street children's rights in Durban, South Africa. This is run by the
Amos Trust. He is a Global Club Ambassador for Tottenham Hotspur and the English Football Association, an Ambassador for the Prince's Trust and Hon. Vice-President of Diabetes UK. In 2018, Mabbutt had part of his foot eaten by a rat. While on holiday with his daughter in the
Kruger National Park, in South Africa, Mabbutt, who has little feeling in his feet due to diabetic neuropathy, awoke to find a rat had eaten part of his foot and had bitten one toe to the bone. He was forced to fly back to the UK for surgery and spent a week in hospital. ==Honours==