Potassium Protects the Heart
Diastolic dysfunction (impaired left ventricular filling) is a common and important, though under-appreciated, cause of heart failure. In one recent study, of 556 unselected patients with heart failure, 55% had a normal left ventricular ejection fraction, indicating that heart failure was almost certainly due to diastolic dysfunction. Patients with diastolic heart failure have mortality rates similar to those with systolic heart failure.
The studies reviewed above suggest that potassium deficiency can contribute to diastolic dysfunction and possibly to systolic dysfunction as well.
Magnesium is required for the intracellular uptake of potassium, so potassium supplementation alone will not correct intracellular potassium deficiency unless magnesium deficiency is also corrected.
Read details on this potassium heart study.












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