Many popular cereals are full of added sugar, and chocolate (fat), and are specifically targeted at children.

Look for the additives on the packet: the worst are E160b, E110 and E122. Commercial ice-creams may also contain sugar, sweeteners, hardened vegetable fats, emulsifiers, colourings, flavourings, and many other artificial additives.

In countries such as Ivory Coast, Cameroon, Ghana and Nigeria cocoa workers are typically children of under 4 years of age, many of whom have never been to school.

Pringles, nice as they are, are packaged in a carton made from 6 materials, including steel, aluminium and PET. Most councils will not accept them for recycling (I couldn't find one that did in the UK in my limited search).

Crisps contain a fair proportion of fat, and although many brands are now actively advertising substantial percentage reduction in saturated fats it still accounts for a substantial amount of the product.