PCOS and IBS: Why Food Sensitivity Tests Are A Waste of Time and $$$

What Is IBS Food Intolerance Testing?

I get it. Everything you eat seems to make you feel worse and you aren’t sure which foods are the triggers.

And you are sick and tired of feeling sick and tired! If someone told me that they had the solution to my woes, I would hop on that too!

Unfortunately, food intolerance or sensitivity testing does not have solid evidence of accuracy (3)!

First off, it is helpful to understand the difference between a food allergy and food intolerance:

• A food allergy is when your body reacts to a substance as if it was a bacteria or virus that would make you sick (i.e an inappropriate immune response). When you eat the food you are allergic to, your body makes a certain type of antibodies called IgE (immunoglobin E) which triggers the immune system to go into overdrive. Symptoms range from super severe (anaphylactic shock) to oral inflammation or diarrhea.
  • Common food allergens are wheat, soy, nuts, dairy, eggs, shellfish, and fish.
• A food intolerance actually does not involve the immune system like an allergy but it does cause an unpleasant reaction in the body, often in your gut, from a decreased ability to digest the food.
  • For example, the symptoms of lactose intolerance are caused by an insufficient amount of lactase (an enzyme that breaks down lactose) in the body. Since your body cannot break down lactose, it just hangs out in your intestines and ferments which causes the symptoms of bloating, abdominal distention, cramping or pain, and diarrhea.

Now back to the original point of the blog – should you get a food intolerance test?

If you are concerned about having the highest accuracy tests & results, nope! Since food intolerances do not involve the immune system, the tests that are offered are not worthwhile.

The tests offered are called Food-specific IgG antibody testing which just measures the IgG antibodies in your blood. It sounds great until you learn that your body makes IgG antibodies to the proteins from the food you regularly eat.

In other words, it is a normal part of your immune system and high levels of IgG antibodies in the foods they commonly eat are found in people without food sensitivities (3)!

Essentially you are just taking a test to find out which foods you eat the most often. The downside is that you will then be instructed to avoid those foods which are your favourite, may not be a trigger food for your stomach woes, and are even healthy for you!

My Nutrition Treatment Plan for Women With PCOS And IBS

In any assessment with women, I am screening for signs of high androgen levels and high insulin levels. If I ever have concerns, I make recommendations for women to discuss their symptoms with their primary care provider since I cannot make any diagnoses as a Registered Dietitian.

My goal is to treat PCOS in a holistic manner, help my clients navigate the healthcare system, and receive treatment for the “whole” of the condition vs. only 1 side such as fertility.

I also try to help women understand their condition in a more thorough way, dispel any diet myths, and develop some compassion for themselves.

It is a tough condition that is difficult to manage, beating yourself up or working with a health care provider who shames you in addition to these struggles is the last thing you need.

So if the IgG test food intolerance is not the most accurate, how do you find out your food sensitivities?

It isn’t the sexiest answer but working with a Dietitian to determine your food or lifestyle triggers – which may include a food elimination diet. I help clients identify their food triggers for IBS through a systematic removal & reintroduction of potential triggers to determine the culprit of their symptoms!

• Since food intolerances can range in severity, we need to find whether it is a food that should be avoided most of the time or if it is a dose-related response (meaning 1 serving a day is fine but not multiple). My process for determining food sensitivities is to help clients find as many different foods they CAN eat without triggering their symptoms or being stuck on a restrictive diet!
• The elimination diets can be restrictive (meaning less variety of healthy & fun foods) and overwhelming so I highly recommend you reach out to a Dietitian to guide you through it!
• For my clients with IBS and PCOS, it is important to determine food intolerances if they are struggling with PCOS and bowel problems as many of the foods I would recommend to women with PCOS to help balance their blood sugar include whole grains, beans, lentils, soy, vegetables, and fruit.

However, these foods can also worsen gut health symptoms for those PCOS and IBS.

If you were unaware of your trigger foods and you added a bunch of the foods I mentioned above, this can be a barrier to sticking with a healthy diet! Helping my clients determine which foods they can eat without pain or discomfort is very important!

I also may refer clients to a physiotherapist for pelvic floor treatment as pelvic floor health impacts IBS symptoms as well!

If you think you may have PCOS and IBS, it’s important to get diagnosed as early as possible so you can start treatment.

A holistic approach to treating PCOS is often the most successful, and I would be happy to chat with you about which treatment option might be best for you. Don’t suffer in silence – schedule your free Clarity call with a Registered Dietitian Nutritionist!