How are IgG Unverträglichkeitstest and Sport related?

The relationship between IgG intolerance tests and sports is not scientifically supported. IgG antibodies indicate immune exposure, not necessarily intolerance or allergy. In sports, these tests are often marketed to enhance performance or reduce inflammation by avoiding certain foods. However, evidence is lacking: no controlled trials or guidelines support IgG testing for athletic nutrition. Unnecessary dietary restrictions can lead to nutrient deficiencies, reduced energy availability, and impaired recovery. Some companies promote IgG tests as 'biohacking' or 'personalized training,' but this is marketing, not science. Athletes seeking performance nutrition should rely on evidence-based methods like glucose or lactate monitoring, food diaries, and medical allergy tests (e.g., IgE). Caution: IgG tests can yield false positives, causing unnecessary anxiety or restrictive diets. For most athletes, a balanced, calorie-adequate diet is far more important than eliminating IgG-positive foods.