I wondered that too. I imagine it would be very inaccurate to include that as the amount of calories needed would vary wildly person to person. For example, I burned around 2000kcal to cycle 100km in hilly terrain at the weekend, while a friend burned roughly twice that on the same ride.

inb4 she runs over her own kids on the driveway because she can’t see them over the hood of that thing. (hopefully not though!)