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KnowYou+

Food IgG Response Test

At-home blood test

Prepaid tracked return · Processed by a CQC-regulated laboratory.

A broad look at your food-specific IgG responses across 286 different foods and 13 food groups.

Want to understand how your body has responded to different foods?

The KnowYou+ Food IgG Response Test is an at-home blood test that looks at 286 different foods across 13 food groups.

It measures IgG antibodies, which are proteins made by your immune system. Your results show which foods produced a measurable IgG response.

You can use the results alongside a food and symptom diary, or discuss them with a healthcare professional or dietitian if you want more guidance.

Important: An IgG response does not mean you have a food allergy or food intolerance. This test does not diagnose food allergy, food intolerance, coeliac disease or another medical condition, and you should not remove foods from your diet based on the result alone.

Coming soon

Be the first to know when this test is available.

For adults who want to understand their food-specific IgG responses in more detail and may wish to use the results alongside a food and symptom diary or professional dietary advice.

This test measures 6 key hormones linked to menstrual cycle and reproductive health:

  • FSH — Follicle-Stimulating Hormone
  • LH — Luteinising Hormone
  • Prolactin
  • Testosterone
  • Oestradiol
  • Progesterone

Together, these provide a broader picture of hormone patterns and reproductive health.

No fasting is required. Collect your sample at a convenient time of day and continue your normal diet beforehand unless a healthcare professional has advised otherwise.

Collect your sample at home, return it using the prepaid packaging provided, and receive your laboratory result securely.

Everything you need to collect and return your sample, including collection materials, instructions and prepaid return packaging.