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Allergy VS. Intolerance: What's the Difference?

Food Allergies: Sensitivities caused by a reaction to certain proteins found in foods that trigger the immune system's response. The immune system releases antibodies and chemicals such as histamine, causing reactions in the respiratory, gastrointestinal, skin and cardiovascular systems that can potentially cause death.
Common allergens include:​
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  • Eggs
  • Peanuts
  • Seafood
  • Sesame
  • Soys
  • Sulphites
  • Tree nuts 
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Food Intolerances: Sensitivity to food that does not involve a person's immune system. Symptoms of food intolerance may differ depending on the food and the person. Food intolerances occur in the digestive tract and are usually associated with the body's inability to absorb or digest specific enzymes found in foods. Examples of food intolerances include:
  •  Lactose intolerance occurs in those who do not have the enzyme lactase which is required to digest lactose found in dairy products.
  • Celiac disease is a genetic disease where the person is intolerant to gluten that is found in many grain and cereal products. The only current way to manage celiac disease is by maintaining a gluten free lifestyle.
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Signs & Symptoms of Food Intolerances:
  • Abdominal pain
  • Bloating
  • Flatulance
  • Diarrhea
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Food Allergies: Fast Facts

References:

Health Canada. (2012). Food allergies and intolerances. Retrieved January, 2017 from http://www.hc-sc.gc.ca/fn-an/securit/allerg/index-eng.php

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