See how your body responds to the foods you eat
OptiWay measures your IgG response to 285 foods across 13 categories, from a simple finger-prick. A practical starting point for working out which foods to trial removing.
No referral. Finger-prick, at home or in branch.
How would you like to get tested?
Order the kit
Delivered to you. Collect a few drops from a finger-prick at home, then post it back. The simplest way.
Do it at a branch
Prefer help with the finger-prick? Book a time or walk in to any branch and we will take the sample for you.
Book a visitAsk first
Not sure if OptiWay is right for you? Message us on WhatsApp and we will talk it through.
WhatsApp usWhat does OptiWay test for?
285 food and drink antigens grouped into 13 categories, each measured for IgG sensitivity from a single finger-prick. A Cross-reactive Carbohydrate Determinants (CCD) marker is built in as a false-positive control.
Cereals & Seeds
30Gluten grains and gluten-free options: wheat, rye, barley, rice, quinoa, oat.
Coffee & Tea
9Coffee, cocoa, black and green tea, chamomile, peppermint, hibiscus.
Edible Mushrooms
6Button, oyster, chanterelle, enoki and more.
Egg & Milk
20Cow, goat, sheep, buffalo and camel milk, cheeses, egg whites and yolks.
Fish & Seafood
38Common fish plus shellfish: prawn, crab, mussel, squid and others.
Fruits
36Everyday and less common fruits, stone fruits and citrus.
Legumes
9Beans, peas, lentils, soy, peanut and more.
Meat
14Beef, pork, chicken, lamb and game meats.
Novel Foods
21Spirulina, chia, baobab, alternative proteins and seaweeds.
Nuts
12Almond, hazelnut, walnut, cashew, macadamia and coconut.
Spices
30Warming spices, herbs and condiments.
Vegetables
50Brassicas, nightshades, root vegetables, alliums and leafy greens.
Other
10Yeast, honey, cane sugar, hops and the CCD internal control.
285 antigens in total. The CCD control helps flag cross-reactive false positives, so a raised result is more likely to be meaningful.
Three steps, no GP needed
Order or book
Order the kit online, or book a finger-prick at a branch. No doctor's referral.
Finger-prick sample
A few drops of blood onto a collection card. Quick and simple, at home or in branch.
Results in 2 to 4 weeks
A colour-coded report by food and category, a clear starting point for an elimination trial.
Who is OptiWay for?
Most useful if you have ongoing, low-grade symptoms that you suspect are linked to food, and you want a structured place to start.
Bloating and digestive discomfort
Persistent bloating, wind or an unsettled gut that you cannot pin to one obvious cause.
Fatigue and brain fog
Low energy or foggy thinking that seems to track with what you eat.
Skin flare-ups
Recurring breakouts, eczema or itchy skin that come and go.
Aches and stiffness
Joint aches or general inflammation you would like to investigate.
Planning an elimination diet
A data-led shortlist of foods to trial removing, rather than guessing.
You want a starting point
A structured first step to discuss with a practitioner, not a final answer.
What people say
Friendly and competent staff. Both at reception and the nurse. A much simpler process than going through doctors. Thank you ladies.
The staff at reception as well as the nurses are friendly and professional. I've also always received results timeously. I would give 10 stars if I could.
Highly highly highly recommend. The experience was painless and the practice was inviting and well kept. The report was extremely detailed and informative and I would have this as top of my list for preventive care.
Amazing experience, highly professional staff. Very reasonable prices. Highly recommend.
I cannot recommend Juliette and her team enough, friendly and kind from the get go. Bloods were drawn with minimal discomfort and the labs came back quickly.
Excellent experience at Epicentre. The staff were professional, kind, and took time to explain everything clearly. The facility was clean, booking was easy, and I did not feel rushed.
What OptiWay does not do
OptiWay is a guide for an elimination trial, not a diagnosis. We would rather be upfront about what IgG testing can and cannot tell you.
- It is not an allergy test. Classic allergy and anaphylaxis are driven by IgE, a different test. If you suspect a true allergy, see a doctor.
- It does not diagnose coeliac disease, food allergy or any medical condition on its own.
- Scientific opinion on IgG food sensitivity testing is divided. A raised result reflects exposure and sensitivity, not proof that a food is harmful.
- It works best as a starting point for a structured elimination trial, ideally with a practitioner, rather than a final answer.
Quick answers
Three walk-in labs
Durban
Mon to Fri, 08:30 to 16:00
Johannesburg
Mon to Fri, 08:30 to 16:00
Round out the picture
Medically reviewed by Dr Samantha Naidoo, MB ChB, FCP (SA), Medical Director at Epicentre Walk-In Labs. Reviewed 2 June 2026. Epicentre Aids Risk Management (Pty) Ltd provides diagnostic laboratory testing and does not provide diagnoses, treatment or prescriptions to the public; results are intended to inform discussions with a registered healthcare practitioner.
Find out what your body is reacting to
285 foods, one finger-prick, no doctor's referral. Order the kit to do it at home, or book a finger-prick at a branch.