What Are The Food Allergies And Sensitivity
Read up on baby allergy information and tips on safely feeding your baby. Don't confuse food intolerance with food allergy. Read on to find out more.
Food allergies and sensitivities; what is what?
If it seems to you that there are more children with food allergies around, you are right. Both allergies in general and food allergies in particular are on the rise worldwide. Theories as to why this is so include increased immune challenges from toxins and genetics.
Is a milk allergy the same as lactose intolerance? What are the main allergy-forming foods? What can my allergic child eat? Regularly asked these sorts of questions, nutritionist mum Leanne Cooper explores this complex area and addresses some of the common questions from mums and dads.
Don’t confuse food intolerance with food allergy
Often the terms ‘allergy’ and ‘intolerance’ are used interchangeably. Be aware that self-diagnosing can be risky, as not all reactions to food are what they seem. In fact, allergy and intolerance are different. A food allergy is defined as an immune response (involving special immune substances such as antibodies called IgE) by the body to a food protein or similar large molecule. Definitions of food intolerance are a little less clear. Some consider it a ‘chemical’ reaction not involving the immune system; others refer to it as a non-IgE immune response. For our purposes it is easier to think of it as a non-immune response where the body is unable to deal with a food compound. One of the best-known examples is the reaction many people have to the taste enhancer, MSG. Food intolerances are by far much more common than food allergies.
When we experience an allergy, the body reacts to seemingly harmless substances by treating them as foreign invaders, so the body’s response is to mobilise its army of antibodies which are made by the immune system. This is why allergies (not just food) are best diagnosed by testing the body’s antibody response to an allergen. This can be done using a blood test or skin prick test. This is also why many children with undiagnosed allergies can appear overly tired with dark rings under their eyes; their body has its army on the front line battling without rest.
What sort of foods cause food intolerances?
Unfortunately, it seems our tastiest foods are most likely to be offenders as they have the greatest levels of natural chemicals. Three major groups include:
- Foods high in salicylates (plant chemicals that are similar to aspirin) such as fruit, vegetables, nuts, herbs and spices and yeasty foods.
- Foods containing amines (part of protein) such as chocolate, cheese, yeasty foods and fish products.
- Glutamate (a protein) containing foods such as tomatoes, cheese, mushrooms, stock cubes, sauces and yeasty foods.
A family history certainly seems to have some predictive quality to allergy in children, however it is most evident when both parents have a history of food allergy, and while the association is less strong when just one parent has a food allergy it is stronger if it’s mum. It should be said that these statistics aren’t cut and dried; many factors influence them including ethnicity and which food is the allergen (Koplin, 2013).
What are the main culprits?
According to the NSW Food Authority (2013), the top food allergens include:
- Tree nuts
- Sesame seeds
This information is adapted from Leanne Cooper, the Director of Cadence Health and Food Coaching Courses, Leanne is a registered nutritionist and mother of two very active boys.
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The information presented is not intended to replace medical advice.
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