Know what your food triggers are with Optiway™

What is the difference between food allergy and food intolerance?

Up to 45% of the population suffer from intolerances which, whilst not life threatening, can have a negative impact on many aspects of daily life.

Doing an food intolerance test takes the guesswork out of what is causing those irritating symptoms. The personalized OptiWay report that you receive with your ideal food choices neatly categorized into red (to avoid), yellow (to eat in moderation) and green (to eat liberally) will help you to optimise your eating plan and eliminate the foods that your body does not enjoy. This way, you can ensure that you diet works for you and not against you.

This can also help to improve your overall fitness performance by providing your body with the nutrients and foods that it really needs.

It can be stressful to constantly experience symptoms after eating, not knowing the cause. It is not good for your mental wellbeing to fear developing these symptoms every time you sit down for a meal.

The OptiWay test will help reduce this stress by empowering you to make the appropriate changes to your diet and live your healthiest life. The OptiWay test is accurate and fast. Depending on when your sample is received, results are made available within a short period of time, personalized to you. You will find out exactly where the problem lies, and how to avoid it.

Planning what you eat can go a long way to ensuring your future healthy lifestyle.

I have been avoiding a food for several months/years; will this affect my test results?

The IgG food intolerance test is based on your immune system producing antibodies in response to you eating certain foods. If you have been avoiding a particular food, your body may be producing insufficient antibodies to be detected by the test. You may therefore show a negative response. To ensure a reliable result, you should include that food in your diet daily for at least 6 weeks before testing. However, if you know that the food concerned causes you extreme symptoms do not reintroduce that food at all.

What does U/ml mean?

U/ml stands for Units per millilitre and is a measure of concentration. All positive results on the Food Intolerance Test report are expressed in U/ml to show the concentration of IgG antibodies in the blood.

Do I need to visit a nutritionist to discuss these results?

Once you have done the Optiway test, you will receive your personal report with foods categorized according to your tolerance levels on email. We hope that the results in your feedback report are meaningful to you having covered 222 food types and that your questions regarding what you should and should not be eating have been answered. Optimizing your nutrition is an excellent way to optimize your health.  

If you would like to discuss your results in more detail, we will gladly set up a consultation with one of our specialized dieticians, who is in a position to explain your results thoroughly and make personalized recommendations to you. This way, you will have the opportunity to discuss your unique report and nutritional needs with a dietician in a 45 minute session, dedicated to you. Additionally, you will get bespoke advice regarding how to remove or reduce reactive foods from your diet, avoid nutrient deficiencies when eliminating reactive food, substitute with similar alternatives, strengthen your immune system and reintroduce foods responsibly.  

The consultation can be done via telephone, Zoom or Skype so that you can dedicate your time to maximizing your health from the comfort of your own home. The cost is R 750 including Vat, payable in advance. This consultation is covered by most medical aids.  

To book your consultation, kindly email

Is it possible that I am affected by foods that do not show up in your IgG food test?

Yes - some foods may cause a classic allergic reaction involving the production of IgE antibodies. These will not be detected by any IgG food test. There are also many foods that can cause a reaction in the body without involving the immune system but produce symptoms similar to IgG reactions. For example amines in chocolate, cheese and red wine may cause migraines; some food additives such as tartrazine can cause hives, rashes and asthma; monosodium glutamate in Chinese dishes can produce sweating and dizziness; ‘Nightshade’ alkaloids in potatoes, tomatoes and peppers may affect the joints. Food intolerance may also be due to a deficiency of a particular enzyme, as in lactose intolerance. You should avoid any foods that you suspect are affecting you adversely.

If cow’s milk comes up positive, does that mean that I am lactose intolerant?

No, not necessarily. Lactose intolerance is the inability to digest lactose, the major sugar found in milk, and is caused by a deficiency of the enzyme lactase. Our food intolerance test detects whether your immune system is reacting to proteins within cow's milk but does not detect the lactase enzyme and therefore cannot diagnose lactose intolerance.

Is gluten-free the same as wheat-free?

No. A product can be wheat-free but not gluten-free and vice versa. You can buy products that are both gluten-free and wheatfree. It is important to read ingredient labels to be certain.

In this test, the gliadin (gluten) is tested independently of wheat, barley and rye. If you test positive for gliadin, we suggest you avoid these grains (even if they show a negative response on your results) and substitute with naturally gluten-free foods such as quinoa, buckwheat, corn and oats.

If I come up positive to wheat, does that mean I have Coeliac Disease?

No. Coeliac disease is an autoimmune disease that results in a severe reaction to gluten, a protein found in wheat, barley and rye. Our wheat extract does not contain gluten and so a positive test result for wheat only indicates an intolerance to wheat proteins, not to gluten.

Do I have to be referred by my GP before I have a food intolerance test?

No, you can order from us directly or through your healthcare practitioner.

Isn’t it dangerous to cut out whole food groups?

You do have to be careful when changing your diet which is why we offer follow-up dietary advice from our qualified nutritionists to anyone who has taken our tests.

Are these tests suitable for children?

We do not recommend testing children under two years of age.

Do I need to have a re-test after a few months?

Most people do not need to have a re-test, but if you would like another test we usually advise a period of 12 months in between tests. If your symptoms have improved and you have been able to successfully re-introduce the foods, then a re-test is unnecessary.

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