[DanBC]

How many calories do you think two hours of cycling uses?

It's not much, and it's comfortably within what most people are eating already.

[danieltillett]

Maybe, but without some good data it is hard to say. I do know that us sloth-like generation eat far less than our ancestors.

[AstralStorm]

The extra movement that increases the resting metabolic rate would cost about 500 kcal combined with the load. Estimating for an hour of cycling daily.

This means about one extra meal to match which would actually cut into waste if it is done smart. Or perhaps you do not even have to adjust anything. (obesity is a thing)