Myths vs facts: IgG and Fruchtbarkeit

The myth claims that IgG food sensitivity tests can identify and treat fertility issues. In reality, the scientific evidence is weak. IgG antibodies indicate past exposure to foods, not intolerance or allergy. No robust studies show a causal link between elevated IgG levels and infertility. Most commercial IgG tests lack standardization and are not endorsed by medical societies. For fertility problems, evidence-based assessments (hormone panels, tubal patency, semen analysis) are far more relevant. IgG testing does not provide reliable diagnostic information for fertility and should not guide dietary or treatment decisions. The evidence grade is 'marketing/unclear' because these tests are often promoted without solid scientific backing.