Research

Hormonal

Homozygosity for the C allele at position -174 of the IL-6 gene is associated with lower plasma IL-6 levels, increased insulin sensitivity, and lower postload glucose levels compared to carriers of the G allele.

This research highlights that your genetics, specifically the IL-6 gene, influence how sensitive you are to insulin. If you carry the G allele, you may have higher baseline inflammation and lower insulin sensitivity. While you cannot change your genes, this knowledge underscores the importance of maintaining healthy body composition and managing inflammation, as these factors interact with your genetic predisposition to affect metabolic health.

ModerateSupportsMEDIUM confidence
Subjects homozygous for the C allele at position –174 of the IL-6 gene (SfaNI genotype), associated to lower plasma IL-6 levels, showed significantly lower integrated area under the curve of serum glucose concentrations (AUC glucose) after an oral glucose tolerance test, lower blood glycosylated hemoglobin, lower fasting insulin levels, lower total and differential white blood cell count (a putative marker of peripheral IL-6 action), and an increased insulin sensitivity index than carriers of the G allele, despite similar age and body composition.
José Manuel Fernández‐Real et al. · Diabetes · 2000

Why this rating

Observational study with a small sample size (n=32) and healthy subjects, limiting generalizability to diabetic or obese populations.

Source

Interleukin-6 gene polymorphism and insulin sensitivity.

José Manuel Fernández‐Real et al. · Diabetes · 2000

DOI 10.2337/diabetes.49.3.517

cross_sectional · n=32Cited 244×
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DOI resolved against Crossref · corpus check 2026-06-10

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