Key result
The heritabilities of blood pressure under controlled dietary sodium and potassium intake (0.47-0.53) were significantly higher than those under a usual diet (0.31-0.34).
Cohort (n=1,906)
Blood pressure responses to dietary sodium and potassium intake have moderate heritability, and heritability of blood pressure is significantly higher under controlled diets than usual diets.
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Controlled diets may enhance detection of genetic BP influences; leaves open whether usual-diet estimates better reflect real-world heritability.
Gu et al. (2007) reported a cohort. Dietary sodium and potassium intervention vs. Usual diet (baseline) was evaluated on Heritability of blood pressure responses. The heritabilities of blood pressure under controlled dietary sodium and potassium intake (0.47-0.53) were significantly higher than those under a usual diet (0.31-0.34).
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