Healthy Eating?

Today K and A's school included in their weekly "newspaper" an editorial on "Healthy Eating", asking parents to support the school's two week drive to improve on an already ongoing campaign.

NHS "Health Eating" Campaign photo

But just what IS Healthy Eating? 

The school in question has twice termly cake sales and hands out sweets in "birthday assembly", which hardly fits the "Healthy Eating" criteria that the school is so keen to promote?