Keeping a food diary sounds dull and boring. However, by analysing the results it can really help you see what you are eating and can assist you in deciding what changes you need to make in the future. Is it the vending machine, snack box at work, treats eaten watching the t.v with the kids, snacks grabbed whilst waiting for tea to cook, scoffing leftovers or alcohol that is the key to your weight gain? You will probably have some ideas but a food diary will really assist you in pin pointing these areas. You must be as honest as you can,though and not forget that handful of peanuts, midnight snack of biscuits you have had. This is a key task so complete this for a week.