When food proteins irritate the immune system, it may produce Immunoglobulin G (IgG) antibodies. Repeated exposure can lead to delayed, low-grade inflammation that shows up as digestive issues, fatigue or skin problems.
A Swan Science IgG test analyses your blood for antibodies to more than 200 foods and drinks – dairy, wheat, eggs, fruits, vegetables, nuts, seeds and more. It highlights potential sensitivities rather than diagnosing disease.
Bloating, gas or cramps
Brain fog and low energy
Eczema, rashes or breakouts
Headaches or mood changes
Joint aches or stubborn weight
Provides data when elimination diets feel like guesswork.
Acts as a guide for targeted changes rather than a medical diagnosis.
Works best when combined with professional nutrition advice.
ISO-accredited laboratory standards
Simple at-home collection, fast results
If unexplained symptoms persist, an IgG test can offer clarity and a starting point for change.
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