This is the Topic of the 12.30 debate on Sky News today.
More than 100,000 people took part on Ryanair's website and a third of those voted for the obesity charge.
Ryanair argues that such fees would help them reduce the costs of tickets for other customers who did not exceed the weight limits.
It also said the measure could act as incentive for people to lose weight
1230 Debate: Ryanair May Charge Overweight Passengers A 'Fat-Tax' | UK News | Sky News