Avoid the sticky, hard and chewy foods that can break orthodontic appliances. This obviously includes things like chewing gum, toffees, jellies, wine gums, boiled sweets, lollipops etc. Eating these foods can damage your braces and set your treatment back, the result being that you will have to wear your braces longer.

However, it is not just "rubbish" food that will damage your braces - eating hard crusty rolls can damage them, as can eating meat off a bone, or biting through a large crispy carrot, or trying to bite off half an apple in one go....

It is not even jst food that cause problems - chewing rulers, opening plastic bottle tops, biting on pens & pencils....all potentially damaging items.
Basically, what it is important to keep remembering is that you need to treat your braces with care. Gentle biting always, will minimise breakages and speed your treatment.