Weight / Fat loss

I jfg'led apple crumble and it told me that a portion of Somerfields variety was 450kcal.

2500kcal is the old RDA recommended for sedentary men. This is in the process of being upped to 3000kcal by the relevant authorities.

The maintenance level for a typical male who does a bit of cycling each day is going to be at least 3000kcal. But just to be extreme, lets drop it to 2000kcal.

Thats four portions of supermarket apple crumble with 200kcal to spare.

I thought the 2500 kcal was for moderate exercise too?