Editor’s Note: This short story from behavioral scientist Edward H. Rockey is a perfect example of the importance of knowing whether you have a food allergy, food sensitivity, or food intolerance.

What started out as general tiredness quick turned into intense exhaustion and queasy sensations in his gut. But even after visiting an internist and neurologist, doing a physical exam, blood tests, thyroid test and more, Rockey still had no answers.

In Rockey’s last meeting with his internist, the internist concluded:

“‘I think you’re clinically depressed, and I’m going to put you on an antidepressant.’ He handed me a small sample bottle. I asked about the side effects and contraindications, and I was shocked at the dreadful list of what might happen if I took those pills… I told him I would not take the antidepressant, and I stood up to leave.”

Not long after, while discussing his mystery health issues with a woman working at a health food store, she suggested he go and see an endocrinologist who might be able to help. At the end of Rockey’s first visit, the endocrinologist ordered a blood test for food allergies of all things.

A week later, Rockey saw his results: one food was categorized as “severe” (cow’s milk) while others were in the “moderate” (wheat) and “mild” (bananas) categories. Rockey had a revelation… he was not depressed, he had food allergies and sensitivities. So, he completely cut those foods out of his diet and, you guessed it, the dreadful symptoms disappeared.

What Edward Rockey Learned

“If you have doubts about a diagnosis or treatment and have the time to investigate, it’s wise to get a second opinion or even a third one. In some cases, your intuition, self-awareness, and self-knowledge might just be more valid than a medical doctor’s opinion.”

This guest post was graciously written by Dr. John Dempster, a leader in Functional Medicine. He is currently hosting the esteemed Mental Wellness Summit with some of the world’s leading health practitioners. Find out more here.

By now you’ve likely heard of someone explaining about recent restrictions to their diet based on something they’ve read in a book, heard on tv, or even been told by (gasp!) – your Naturopathic Doctor or Nutritionist.  Others may have experienced an allergy or food sensitivity symptoms in Toronto. Many of you may have even begun to experiment with your diet by eliminating certain foods, and this can be a great place to start especially if you’re dealing with any of the following issues:

  • Digestive disorders
  • Skin rashes/disorders
  • Mood issues
  • Chronic joint pain
  • Fatigue
  • Weight gain (or inability to lose weight)
  • Migraines
  • Inability to concentrate and focus

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With the age of the information generation, many are self-diagnosing themselves as being ‘gluten free’, ‘lactose intolerant’, etc.   While this will almost never cause anyone any harm in removing these foods from their diet, it often requires a more in depth understanding to truly understand if what we’re eating, drinking, or breathing can harm us or heal us.

Let me break it down…

What is a Food Allergy?

A food allergy occurs when the immune system mistakes an ingredient in food as harmful and creates an immune response to fight it. Antibodies are produced in response to the offending food which can trigger a chain-like reaction, affecting numerous organs in the body.  Specifically, with a true allergy-  IgE antibodies are created, which if eleveated can potentially create a wide range of symptoms. In some cases, these symptoms can be very severe – even death.

If you have a food allergy, even a tiny amount of the offending food can cause an immediate, severe reaction (within seconds to minutes). Digestive signs and symptoms may include nausea, vomiting, cramping and diarrhea. Other signs and symptoms can include a tingling mouth, hives, and swelling of the lips, face, tongue and throat. A life-threatening allergic reaction known as anaphylaxis can cause breathing trouble and dangerously low blood pressure.

Food allergies, which can be genetic, affect approximately 4 percent of adults and 5 percent of children. If you have a food allergy, you’ll need to avoid the offending food entirely.  A food allergy is determined by your primary healthcare provider via an IgE blood or a skin prick allergy test.

What is a Food sensitivity?

Most food reactions known today are caused by a food sensitivity rather than a true food allergy.  Sensitivities are commonly confused as an allergy, however there is a noticeable and measurable difference in the immune response.  In a sensitivity only IgG, IgA, and IgM antibodies are produced.  While technically this is still a form of an allergy – symptoms do not appear as immediately as they do with their dramatic cousin, IgE.

Sensitivities are also much more subtle in their onset, taking anywhere from 1 hour to 3 weeks for their symptoms to appear.  Food sensitivity antibodies are via measured accurately via a blood test only.

What is a Food Intolerance?

Image courtesy of YorkTest

While the symptoms are similar to food allergy, a food intolerance does not involve an immune reaction (i.e. no antibodies produced).  Rather, intolerances occur when an ingredient/compound in a food irritates a person’s digestive system or when a person is unable to properly digest the food outright. Symptoms of an intolerance are primarily gastrointestinal and include; stomach pain, gas or bloating, heartburn, vomiting, and diarrhea.

If you have an intolerance, you may be able to eat small amounts of the offending food without trouble, however too much can send your system into a tailspin. Intolerance to lactose (an ingredient in most milk and dairy products) is the most common food intolerance and affects about 10 percent of North Americans. You may also be able to take steps that help prevent a reaction. For example, if you have a lactose intolerance, you may be able to drink lactose-free milk or take lactase enzyme pills that aid digestion (such as Lactaid).

If you are experiencing food sensitivity symptoms in Toronto, call The Dempster Clinic to learn about the tests and treatments available to you.

This guest post was graciously written by Dr. John Dempster, a leader in Functional Medicine. He is currently hosting the esteemed Mental Wellness Summit with some of the world’s leading health practitioners. Find out more here.

Disclaimer: This information is not intended to be a substitute for professional medical advice, diagnosis or treatment and is for information only. Always seek the advice of your physician or another qualified health provider with any questions about your medical condition and/or current medication. Do not disregard professional medical advice or delay seeking advice or treatment because of something you have read here.

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Dr. John Dempster
Naturopathic Doctor
Contributor to The Hearty Soul.