For those people who are unsure whether they even have a food intolerance or allergy, but suffer from symptoms that could be linked to a reaction to food, it is usually a good idea to keep a strict food diary. Make a record of everything you eat and drink for two weeks, and make notes as to when you have any symptoms. Once armed with this information, it should be much easier to identify which foods may be causing a problem. We have a blank two-week food diary that you can download (for free) and print. Fill it in over two weeks with as much detail as possible – even include the brand names of the foods you eat (as ingredients can be very different between brands of similar products). Once you have that information to hand (you may have even identified a trigger food that is causing you problems at this stage), then make your appointment to see your dietician or doctor. They will then be able to advise on the best course of action for you. Always consult your Doctor before making any changes to your diet.