I don't think Mary Berry has anything to worry about.

Tonights dinner. Baked Cod (no sauces), scrubbed not peeled boiled potatoes, boiled brussel sprouts, carrots, french beans, fresh parsley and black pepper.
One pot on the stove and a tray in the oven, sorted.
The above is nutritionally better for me than most of the recipe meals I've done recently.
Okay, the cake business could get out of hand I'll grant you. Did you see the stuff that went into the supermarket Christmas cakes.

The cakes one makes at home it seems are better for ones health, apart from the likelyhood one will eat more cake.