Doctors say she suffered a heart attack caused by a potassium deficiency.

Until more is known, use horsetail with caution if you are at risk for potassium deficiency.

People taking diuretics to control high blood pressure or edema are especially at risk of developing a potassium deficiency.

The potassium deficiency is thought to have been caused by the training schedule and stress of the flight.

Doctors have said she was suffering a potassium deficiency, possibly due to an eating disorder.

She suffered extensive brain damage after her heart stopped one night in 1990 because of an undiagnosed potassium deficiency.

Doctors say a potassium deficiency, possibly caused by an eating disorder, led to her collapse.

The potential consequences of a chronic potassium deficiency are often unrecognized, even by health professionals.

Most people have little or no warning of potassium deficiencies.

The potassium deficiency may also be a result of the Chinese diet or genetic predisposition.