Unhealthful fast foods (convenience foods sold ready to eat such as battered fish and chips,
hamburgers, hot dogs and meat pies) are generally fatty, often fried, salty and low in dietary fibre
(roughage). But fast foods do not have to be unhealthful. For example, lean hamburger meat can
be served with plentiful salad in a low-salt, wholemeal bread roll with little butter or margarine.
Fish can be grilled instead of fried, eaten with lemon or vinegar rather than salt, and the chips can
be thick rather than thin so that they absorb less fat on frying.
The term 'junk food' is not the same as convenience food or fast food. It can be used to mean
foods which are relatively low in nutrients compared to their energy (kilojoule) content. Generally
junk foods rely on flavours such as salt or sugar and artificial colours for their appeal.