With respect to the San Blas Islands dwelling Kuna, who don't develop
hypertension as their urban dwelling
relatives do, the one study assessing their overall diet found it to be high in magnesium, potassium, and relatively low in fat (which should help), but also high in cholesterol and sodium (which shouldn't), which lead to the interest in cocoa and how they drink it.
Blood Pressure Patterns and Factors Associated
with Relative Hypertension among Steady State Sickle Cell Disease Patients in Kinshasa, Democratic Republic of the Congo: A Cross-Sectional Study