Symptoms ofUnlike a food allergy (which is triggered by small amounts of food and causes immediate symptoms), food intolerance symptoms appear hours, or even days, after consuming your problem food.
Common symptoms include:
Irritable bowel syndrome
Joint problems
Migraines
Muscle and joint pain
Depression and anxiety
Fatigue
Nausea and vomiting
Ulcers and hyperactivity in children
Most people are intolerant to more than one food. The commonest culprits are wheat, dairy products and yeast, eggs, beans, nuts, tea and coffee.
Food intolerance can be caused by enzyme deficiencies, viral infections, allergic reactions and disturbances of the body's normal gut bacteria.
Eating large amounts of a certain food, spicy or processed foods, drinking too much alcohol and exposure to toxic chemicals may increase the risk of developing food intolerance.
The standard way of diagnosing food intolerance is eliminating suspect foods from the diet for several weeks. If the symptoms ease, foods are reintroduced individually and the effects assessed - a qualified dietician should supervise this. This process is called an elimination diet and can be hard going, but the results are well worth it.
Many alternative therapists offer treatment for food intolerance. Although they may be helpful, none of these methods have been clinically validated - if in doubt ask for evidence of clinical trials.
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