Immune System Blood Test


Feeling run down or always getting sick? Our immune system blood test checks key health markers that can identify if your immune system is functioning properly. It also tests nutrients that support your immune system and inflammation markers such as hs-CRP.

What gets tested?

8 Biomarkers:

  • Active B12
  • Ferritin
  • Haemoglobin
  • hs-CRP
  • Red Blood Cell (RBC)
  • Uric Acid
  • Vitamin D (25 OH)
  • White Blood Cell Count (WBC)

Additional biomarkers can be added by personalising this test.

How can an immune system blood test help?

If you suffer from frequent colds or illnesses, you could have a weak immune system. This test will help confirm if your immune system is functioning properly and if your diet is giving you enough key vitamins to support your immune health, such as vitamin D, B12, and iron.

What causes a weak immune system?

A weak immune system can be caused by several factors. Chronic stress, lack of sleep, over-exercising, and poor diet choices can all compromise the immune system’s effectiveness. Certain medical conditions, such as autoimmune disorders or chronic illnesses, can weaken immune responses. Lifestyle factors like smoking, excessive alcohol consumption, and a sedentary lifestyle can also contribute to immune system impairment.

How to test immune system strength at home?

Our immune health home blood test fits through your letterbox, making it easier than ever to check your immune strength at home. You’ll collect a small blood sample using a finger prick lancet and then post it to our NHS-accredited labs for analysis. Our medical team reviews your results and includes commentary alongside the results in our app.

Guidance For Optimal Health

Get tailored advice that considers your gender, age, hormone treatments, and menstrual cycle to help you reach optimal health.

Immune System Blood Test