Essentials Intolerance Test

This hair sample food intolerance test is your starting point to explore possible food and non-food reactions to 650 items.
£26.99 £69.99
Sale
  • Feature Icon Hair sample
  • Feature Icon Easy home testing
  • Feature Icon 650 key food & drink items tested
  • Feature Icon Results in 3 working days from sample receipt at lab

Our Essentials Intolerance Test looks at your potential reactivity to 650 food and non-food items. By understanding these reactions, you can make informed decisions, supporting you journey towards greater awareness of what works best for your body.

Wellness Screening

Essentials Intolerance Test - Hair Sample Test

What it is A non-invasive wellness screening method that analyses a small hair sample against a wide panel of food, drink and environmental items.
What it looks at Bioresonance response patterns across a broad range of items — giving a wide overview rather than a targeted clinical result.
Best for
  • A wide, affordable overview across a large number of items in one go
  • Anyone who wants to avoid blood samples or needles entirely
  • Using as a starting point to help focus where to look further

Hair testing is categorised as CAM — see our FAQ below for how it compares to blood-based testing.

Compare all three test methods →

What's tested

We analyse your intolerance reactions to 650 items using a hair strand sample.

✔️ Food & Drink
✔️ Heavy Metals
✔️ Vitamin A-K
✔️ Environmental Sensitivity
✔️ Minerals
✔️ Additives

We test the reactivity levels for 650 items using a hair strand sample. Each item is then classified into one of three reactivity levels:

High
These items are most likely to cause an intolerance.

Medium
These items might cause an intolerance. Having multiple moderate reactivity items in one meal might cause reactions due to their cumulative effect.

Low
These items are safe and fall within the optimal range.

We test for the following items
  • Oils and Condiments

    • Barbecue sauce
    • Tomato ketchup
    • Vegetable oil
    • Almond oil
    • Olive oil
    • Sesame oil
    • Oyster sauce
    • Peppermint oil
    • Coconut oil

    Dairy and Egg

    • Egg
    • Milk from cows
    • Condensed milk
    • Evaporated milk
    • Sour cream
    • Yogurt
    • Ice cream

    Meat

    • Goose
    • Mutton
    • Venison
    • Chicken
    • Liver-ox
    • Liver-pig
    • Horse
    • Beef
    • Roe-deer
    • Pork
    • Turkey-cock
    • Kangaroo
    • Crocodile

    Seafood and Fish

    • Eel
    • Whitefish
    • Trout-brown
    • Shrimp
    • Herring-red
    • Lobster
    • Mackerel
    • Mussels-general
    • Sardine
    • Plaice
    • Sole
    • Clams
    • Anchovy
    • Crab
    • Shark
    • Barramundi

    Cheese

    • Cheddar
    • Stilton
    • Parmesan
    • Gruyere
    • Halloumi
    • Edam

    Cereals and Grains

    Gluten-containing

    • Barley
    • Freekeh
    • Rye
    • Oats
    • Noodles-wheat
    • Farro
    • Bread-brown
    • Bread-white

    Gluten-free 

    • Oats-gluten-free
    • Taco shells-corn
    • Chickpea flour
    • Garbanzo flour
    • Soya flour
    • Rice-white
    • Millet
    • Hops
    • Amaranth

    Legumes and Pulses

    • Field pea
    • Lima bean
    • Broad bean
    • Scarlet runner bean
    • Kidney bean
    • Fermented black bean
    • Black bean
    • Houmous

    Vegetables

    • Mushroom
    • Potato
    • Capsicum-green
    • Turnip
    • Spinach
    • Artichoke
    • Cauliflower
    • Watercress
    • Garlic
    • Cabbage
    • Head lettuce
    • Cress
    • Carrots
    • Olives-black
    • Radish
    • Swede
    • Tomato
    • Onion
    • Escarole lettuce
    • Rocket
    • Chicory lettuce
    • Portobello mushroom
    • Endive
    • Fennel
    • Beansprout
    • Kohl rabi
    • Yams
    • Plantain
    • Butternut squash
    • Broccoli
    • Zucchini

    Fruit

    • Plum
    • Cranberry
    • Quince
    • Apple
    • Prune
    • Banana
    • Pear
    • Blackberry
    • Date
    • Strawberry
    • Fig
    • Pomegranate
    • Raspberry
    • Cherry
    • Orange
    • Peach
    • Raisin
    • Gooseberry
    • Honeydew melon
    • Water melon
    • Grapes-green
    • Lemon
    • Pineapple
    • Apples-Granny Smith
    • Apples-Jazz
    • Galia melon
    • Guava
    • Carambola
    • Lychee
    • Nectarines
    • Cantaloupe melon
    • Goji berry
    • Grapes-black

    Drinks

    • Cider
    • White wine
    • Tea-black
    • Soya milk
    • Red wine
    • Lager
    • Cola
    • Coffee-black
    • Ale

    Nuts and Seeds

    • Hazelnut
    • Chestnut
    • Coconut
    • Almond
    • Brazil nut
    • Walnut
    • Peanut
    • Poppy seed
    • Pumpkin seed
    • Sesame seed
    • Water chestnut
    • Hemp seed
    • Sunflower seed

    Herbs and Spices

    • Ginger
    • Nutmeg
    • Paprika
    • Sage
    • Salt
    • Mustard

    Vegetables

    • Zucchini
    • Watercress
    • Tomat
    • Swede
    • Rocket
    • Radish
    • Portobello mushroom
    • Onion
    • Olives-black
    • Head lettuce
    • Garlic
    • Escarole lettuce
    • Endive
    • Cress
    • Chicory lettuce
    • Cauliflower
    • Carrots
    • Cabbage
    • Beansprout
    • Artichoke
    • Yams
    • Turnip
    • Spinach
    • Potato
    • Plantain
    • Mushroom
    • Kohl rabi
    • Fennel
    • Capsicum-green
    • Butternut squash
    • Broccoli

    Miscellaneous

    • Monosodium glutamate
    • Milk chocolate
    • Potato chips
    • Vinegar-clear
  • Organic compounds

    • Nicotinic acid
    • Nucleic acid
    • Oxalic acid
    • Salicylic acid
    • Omega 3
    • Alpha lipoic acid
    • Ascorbic acid
    • Docosahexaenoic acid
    • Eicosapentaenoic acid
    • Ellagic acid
    • Gallic acid
    • Lignans
    • Lutein
    • Lycopene
    • Mallic acid
    • Omega 6
    • Pyridoxine
    • Zeaxanthin
    • Folate
    • Saponins

    Materials

    • Cotton
    • Synthetic materials
    • Wool

    Trees

    • Maple
    • Apple tree
    • Pear tree
    • Oak
    • Alder
    • Ash
    • Aspen
    • Laburnum
    • Hornbeam
    • Horse chestnut
    • Pine
    • Cherry tree
    • Larch
    • European lime
    • Misteltoe
    • Poplar
    • Plane tree
    • European beech
    • Walnut
    • Betula verrico
    • Japanese cedar
    • Japanese millet
    • Linden tree

    Grasses and Herbs

    • Mugwort
    • Stinging nettle
    • Wild oat
    • Buttercup
    • Velvet grass
    • Tansy ragwort
    • Orchard grass or cocksfoot grass
    • Dandelion
    • Maize
    • Qack grass or couch grass
    • Perennial ryegrass
    • Sweet vernal grass
    • Dock
    • Red fescue
    • Ribwort
    • Wormwood
    • Tall oat grass
    • Kentucky bluegrass
    • Meadow fescue

    Shrubs

    • Blackberry
    • Strawberry
    • Hazel
    • Privet
    • Willow
    • Mangrove

    Miscellaneous

    • Anisakis
    • Horse bot fly
    • Pigeon droppings

    Flowering Plants

    • Aster
    • Chrysanthemum
    • Dahlia
    • Wallflower
    • Scotch heather
    • Hyacinth
    • Clover
    • Lupine
    • Marguerite
    • Narcissus
    • New Belgian Aster
    • Tulip
    • Fireweed/Great willow herb
    • Mulberry

    Insects

    • Mosquito
  • Sweeteners

    • Gelatin
    • Maple
    • Sugar
    • Molasses
    • E 1105
    • E 1200
    • E 1201
    • E 1202
    • E 1404
    • E 1410
    • E 1412
    • E 1413
    • E 1414
    • E 1420
    • E 1422
    • E 1440
    • E 1442
    • E 1450
    • E 1505
    • E 1518

    Antioxidants

    • E 301
    • E 302
    • E 304
    • E 306
    • E 307
    • E 308
    • E 309
    • E 310
    • E 311
    • E 312
    • E 315
    • E 316
    • E 320

    Colourings

    • E 100
    • E 101
    • E 102
    • E 104
    • E 110
    • E 120
    • E 122
    • E 123
    • E 124
    • E 127
    • E 128
    • E 129
    • E 131
    • E 132
    • E 133
    • E 140
    • E 141
    • E 142
    • E 150 a
    • E 150 b

    Preservatives

    • E 200
    • E 202
    • E 203
    • E 210
    • E 211
    • E 212
    • E 213
    • E 214
    • E 215
    • E 216
    • E 217

    Emulsifiers

    • E 432
    • E 433
    • E 434
    • E 435
    • E 436
    • E 440
    • E 442
    • E 444
    • E 445
    • E 450
    • E 451
    • E 452
    • E 460
    • E 461
    • E 463
    • E 464
    • E 465
    • E 466
    • E 470 a
    • E 470 b
    • E 471

    Flavour enhancers

    • E 620
    • E 621
    • E 622
    • E 623
    • E 624
    • E 625
    • E 626
    • E 627
    • E 628
    • E 629
    • E 630
    • E 631
    • E 632
    • E 633
    • E 634
    • E 635
    • E 640
    • E 900
    • E 901
    • E 902
    • E 903
    • E 904
    • E 912
    • E 914
    • E 927
    • E 938
    • Aluminium (Al)
    • Argon (A)
    • Barium (Ba)
    • Caesium (Cs)
    • Cerium (Ce)
    • Chromium (Cr)
    • Copper (Cu)
    • Fluorine (F)
    • Gallium (Ga)
    • Gold (Au)
    • Holmium (Ho)
    • Iridium (Ir)
    • Lithium (Li)
    • Mercury (Hg)
    • Nickel (Ni)
    • Platinum (Pt)
    • Rhenium (Re)
    • Rubidium (Rb)
    • Samarium (Sm)
    • Sulphur (S)
    • Selenium (Se)
    • Silver (Ag)
    • Vanadium (V)
    • Bismuth (Bi)
    • Tin (Sn)
    • Zirconium (Zr)
    • Vit. C
    • Vit. E
  • Minerals

    • Calcium
    • Chromium
    • Iron
    • Manganese
    • Sodium
    • Copper
    • Silica
    • Phosphorus

    Phyto- and other nutrients

    • Allium
    • Beta-carotene
    • Bio-flavonoids
    • Genistein
    • Inositol

Your health is our mission, your care is our promise.

Our Customer Promise is our commitment to delivering real value, support and access to experts as well as tools as part of your health journey.

It means we’re with you every step of the way - providing trusted guidance, meaningful insights, and tools that empower you to take control of your wellbeing. We’re not just here to deliver results - we’re here to help you feel better, live healthier, and reach your full potential with confidence.

ISO Accredited

98% Customer Satisfaction

Fast Results

Backed by a Medical Advisory Board

How does it work?

Activate your test online

Order your test online and activate it using the unique redemption number provided in your activation email.

Take your sample at home

Take your hair sample using our easy to follow instructions. We don't send out a physical kit, our digital sample submission method is environmentally friendly and allow us to reduce our footprint.

Send your sample to our laboratory

Package and send your sample to our fully accredited laboratory using the address within your activation email. Be sure to include the correct postage where applicable.

Receive your results

You will be notified by email as soon as your results are ready, within 3-5 working days from the laboratory receiving your sample. (48 hours if you’ve upgrade to our ‘fast tracked’ service.)

Activate your test online
Take your sample at home
Send your sample to our laboratory
Receive your results

What you receive after testing

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Detailed report with your intolerance ratings

Upon completion of the sample testing, you are provided with a comprehensive intolerance report, offering detailed insights and analysis of your individual intolerances.

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Free elimination diet guide

Explore your dietary patterns with confidence using our complimentary elimination diet guide - developed by registered nutritionists and GP to help you approach your journey responsibly

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Free food reintroduction diary

Keep track of your food journey with your own blank reintroduction diary template - designed to help you record and reflect on your food experiences clearly and conveniently.

Approved by registered doctors and nutritionists

FAQ

Our FAQs for Essentials Intolerance Test

Allergy involves IgE‑mediated immune responses and can be life-threatening; intolerance is dose‑dependent, digestive and generally non‑life-threatening and may involve other immune pathways.

Blood-based tests involve analysing a blood sample to measure specific biological markers. These tests are typically interpreted by healthcare professionals as part of a broader medical assessment.

Bioresonance services use a non-invasive hair sample and are categorised within complementary and alternative wellness approaches. They are designed to provide informational insights that may support personal wellbeing reflection.

Neither service should be used as a substitute for professional medical advice, diagnosis, or treatment. If you have health concerns, you should consult a qualified healthcare professional.

Our tests are ideal for people who experience ongoing symptoms such as bloating, fatigue, headaches, skin issues, or digestive discomfort without a clear cause.

They’re also helpful if you suspect certain foods or environmental factors may be affecting your energy, mood, or overall wellness, but you can’t pinpoint which ones.

Testing provides personalised insights to guide smarter dietary and lifestyle choices.

No, our sensitivity tests are designed to be simple and non-invasive. Hair sample tests only require a few strands of hair, which can be gently plucked or trimmed close to the root. There’s no discomfort involved, and no needles or blood are required.

We only need a small sample — around 4 to 5 strands of hair, at least 4cm long. That’s about the thickness of a pencil lead, so you won’t notice a difference. The hair can come from your head or, if needed, another area of the body. Coloured or treated hair is fine.

Bioresonance intolerance tests Safe for children of any age, since only a small hair sample is required and the process is completely non-invasive.

Bioresonance intolerance tests Yes, you can take a bioresonance intolerance test during pregnancy or while breastfeeding. The test is completely non-invasive and only requires a small hair sample. It poses no risk to you or your baby. However, it’s important to remember that results should be used as a guideline for dietary and lifestyle choices, not as a substitute for medical advice. Always seek the advice of your doctor or other qualified health provider before making significant changes to your diet while pregnant or if you have a medical condition or with any questions you may have regarding a medical condition and/or medical symptoms.

Allergy (IgE) tests Certain medications, such as antihistamines, steroids, or immunosuppressants, may impact results. Speak with your doctor before testing. Intolerance (IgG) tests Most medications do not affect results, though long-term immunosuppressive therapy or steroids may reduce antibody levels. Bioresonance intolerance tests Medications generally do not affect the analysis, since the test measures hair sample frequencies.

Bioresonance Sensitivity Tests (Hair Analysis) With bioresonance tests, there is no physical kit sent out. Instead, you’ll receive a unique digital activation code along with our lab address. Simply place a small hair sample into a grip-seal bag, pop it into a standard envelope, and mail it back using your preferred postal service. 📦 Eco-Friendly: Our bioresonance process is faster, saves packaging, reduces courier deliveries, and lowers our carbon footprint — making it the most sustainable way to test. As soon as your sample arrives at our lab, we’ll confirm receipt by email and SMS so you know it’s safely in processing.

Please be aware that different methods of post can take different lead times to arrive.

Once we’ve received your sample at our ISO accredited laboratory, you’ll receive your test results via email in just 3-5 working days.

You’ll receive an easy-to-read report via email, along with guidance and support on your next steps.

Bioresonance Sensitivity Test (Hair analysis) Bioresonance testing looks at the energetic frequencies of a hair sample to identify potential imbalances. It does not measure immune antibodies or diagnose allergies. For this reason, a confirmed allergy may not appear in your bioresonance results. You should still avoid allergens identified by a medical professional, regardless of your sensitivity results.

Hair food sensitivity tests, also known as bioresonance intolerance tests, are designed as a wellness screening tool rather than a medical diagnostic. They analyse energetic responses from a small hair sample to highlight potential imbalances with foods, drinks, and environmental items. At Check My Body Health, our Food Intolerance Test is processed in an ISO 9001 accredited laboratory, ensuring consistent quality and reliability. While bioresonance is not medically approved or used in NHS diagnostics, many people find the results provide valuable, affordable insights into possible triggers for symptoms such as bloating, fatigue, and skin irritation. In summary: hair food intolerance tests are not a substitute for medical testing, but when carried out in a quality-assured lab, they can offer a cost-effective and trustworthy way to explore potential intolerances and guide lifestyle changes.

At Check My Body Health, we're a global leader in health and wellness testing, trusted by over a million customers across more than 40 countries. Here's why so many people choose us:

1,000,000+ people helped — we've supported over a million customers worldwide in better understanding their bodies and taking control of their health.

A test for every need — from food and drink intolerances to gut health, nutritional imbalances, and environmental sensitivities, so you can choose the test that suits you.

More than just results — every test includes a clear, detailed report, and select tests offer 1-2-1 virtual consultations with a qualified nutritionist for support beyond the numbers.