Oliver Dean is competing at his second MGP
A competitor at the Manx Grand Prix drinks a special smoothie between races to help regulate his blood sugar levels.
Oliver Dean is diabetic, and ordinarily wears an automatic insulin pump which he takes off during races.
He's riding in the Lightweight and Junior Manx Grand Prix races. He was a newcomer last year.
Dean's taking part in a nutrition programme with former motorcycle racer Brad Howell.
He told us what's in the drink:
Jamie Cringle back on Island to continue recovery
Manx rider says it's a 'long road' ahead but thankful for support
Harrison wins fourth Southern 100 solo championship with new lap record
Kieran Clarke and Rob Coppock claim second sidecar title of the week
Harrison wins Southern 100 Senior Race
Five races conclude after opening session of Championship Day
Championship day at the Southern 100
Nine races scheduled for final day of action at Billown
