Hormonal
In asymptomatic adults, the presence of food-specific IgG antibodies (particularly mild-to-moderate positivity) is associated with a lower prevalence of overweight, hypertriglyceridemia, and abnormal fasting blood glucose compared to IgG-negative individuals.
If you are asymptomatic and undergo routine health checks, having food-specific IgG antibodies (especially mild-to-moderate levels) is common and may actually be associated with healthier metabolic profiles (lower risk of high triglycerides, high blood sugar, and overweight). Do not interpret a positive IgG test as a diagnosis of food intolerance or allergy without clinical symptoms; it may simply reflect immune tolerance.
The multivariable Logistic regression showed the prevalence of hypertriglyceridemia, abnormal fasting blood glucose and overweight was lower in the IgG positive group (OR 0.87, 95% CI 0.83–0.92; OR 0.93, 95% CI 0.87–0.99; OR 0.92, 95% CI 0.87–0.96)
Why this rating
Large observational cohort (n=28,292) with multivariable adjustment, but retrospective design prevents causal inference.
Source
Associations between food-specific IgG and health outcomes in an asymptomatic physical examination cohort
Mingxia Wu et al. · Nutrition & Metabolism · 2022
DOI 10.1186/s12986-022-00657-5
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