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Food intolerance or food sensitivity means that your gut is sensitive to certain food items and can’t tolerate them. It affects your digestive system and causes symptoms like abdominal pain, bloating, diarrhoea, constipation, cramping and nausea, headache, heart burn. Certain gastrointestinal conditions like irritable bowel syndrome, celiac disease might make you prone to food sensitivities. Food intolerance might be due the following reasons:
1. Not having the right enzymes to digest few foods
2. Reaction to food additives or preservatives
3. Sensitivity to caffeine or other chemicals
4. Sensitivity to natural sugars
Food intolerance is usually confused with food allergy. Food allergy is an immune mediated reaction in which your immune system mistakes a protein or other food ingredient as a threat and mount an IgE meditated response which can cause mild symptoms like itching, rashes, rhinitis, etc or life-threatening anaphylaxis. It happens within minutes of consuming even small portions of an allergy inducing food.
Food intolerance on the other hand affects your digestive system.
Food Intolerance is non allergic delayed food hypersensitivity against specific food antigens that may result from the absence of specific chemicals or enzymes needed to digest a food substance or an abnormality in the body’s ability to absorb nutrients.
Symptoms appear after a few hours of eating and small amount of food might not cause any symptoms.
Controlled removal of the problem foods from the patient’s diet will often improve the patient’s condition.
Why is food intolerance test prescribed?
Your health care provider may ask you to undergo this test for diagnosing chronic food sensitivity in certain conditions such as:
1. chronic abdominal pain or diarrhoea
2. irritable bowel syndrome
3. unexplained weight loss
What are the components of food intolerance test?
The Food intolerance test measures IgG antibodies in human blood to 215 foods like dairy products, nuts, vegetables, poultry, meat, etc.
Procedure and prerequisites
The sample for food sensitivity test is taken from blood by inserting small needle into vein of your arm. A small amount of blood is then collected in test tube or vial. You may feel some pain due to needle prick. No special preparations are required.