Brewer's yeast IgG

Brewer's yeast IgG


The Brewer’s Yeast IgG blood test measures your body’s immune response to brewer’s yeast, a common ingredient found in bread, beer, and various processed foods. Elevated IgG levels may indicate a sensitivity, which in some individuals can be associated with bloating, fatigue, headaches, or digestive issues. This test can support dietary adjustments when used alongside clinical advice. It is important to interpret results in context with your symptoms and a healthcare professional’s guidance.

Parameters Covered

Brewer's Yeast IgG

What the Test Measures

This test measures the level of IgG antibodies your immune system produces in response to brewer’s yeast. Higher levels may suggest a delayed sensitivity reaction to foods containing yeast.

Turnaround Time for Results


Leicester: Most results are available within 1–2 working days (some tests may take longer)
Outside Leicester: Results are typically available within 2–4 working days (some tests may take longer)
Certain parameters: Some specialised tests may take 2–3 weeks to process.

How Results Are Delivered

Your personalised report will be securely sent to your registered email address.