Mixed
Adherence to a Mediterranean diet (MedDiet) mitigates the increased risk of type 2 diabetes and metabolic dysfunction associated with the TCF7L2 rs7903146 T-allele, effectively neutralizing the genetic predisposition when adherence is high.
If you carry the TCF7L2 rs7903146 T-allele (a common genetic variant linked to higher diabetes risk), strict adherence to a Mediterranean-style diet is your most powerful tool. It doesn't just help; it specifically neutralizes the genetic disadvantage, keeping your weight, waist circumference, and diabetes risk in check. Focus on high adherence to this pattern rather than just isolated nutrients.
The results revealed that, among individuals with high adherence to the MedDiet, the presence of the T allele for both SNPs was associated with a significantly lower weight, BMI, and waist circumference... women carrying the T allele who had high adherence to the MedDiet early in pregnancy have a significantly lower risk of developing GMD compared to those with low adherence.
Why this rating
Supported by multiple randomized clinical trials (PREDIMED) and observational studies, though specific dosing is defined by adherence rather than a fixed nutrient amount.
Source
Polymorphisms Involved in Insulin Resistance and Metabolic Inflammation: Influence of Nutrients and Dietary Interventions
Graziela Biude Silva Duarte et al. · Metabolites · 2025
DOI 10.3390/metabo15040245
More from this paper
- Zinc supplementation (50 mg oral zinc acetate, 2x/day for 14 weeks) improves insulin secretion specifically in individuals with the SLC30A8 rs13266634 CT/TT genotype, demonstrating a genotype-dependent response to micronutrient intervention.Moderate
- High adherence to a Mediterranean diet improves inflammatory biomarkers (triglycerides, hsCRP) in individuals with the TNF rs1800629 GG genotype, demonstrating that dietary patterns can modulate genetic inflammation risk.Moderate
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