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:
Manx Grand Prix 2027 newcomer applications open
Aspiring debutants invited to submit expressions of interest
TT 2027 race schedule announced
Senior race moved and one Superstock event axed in revised programme
Date confirmed for funeral of Sam Naughton
Isle of Man rider died following incident at this year's Manx Grand Prix
Supertwins to remain eligible for Manx Grand Prix in 2027
Machines have been removed from the TT going forward
