Hey, glad I can help. Here's some info from Personal Nutrition, M. Boyle 5th Ed."
"Potassium is critical to maintaining the heartbeat. The sudden deaths that occur during fasting, severe diarrhea, or severe vomiting are thought to be due to heart failure caused by potassium loss. As the principal positively charged ion inside body cells, potassium plays a major role in maintaining water balance and cell integrity.
When sodium is lost with water from the body, the ultimate damage comes when potassium moves out of the cells with cell water and is excreted. This is especially dangerous because potassium deficiency affects the brain cells, making the victim unaware of the need for water. Adults are warned not to take diuretics, except under the direction of a physician, because some of them cause potassium excretion. Physicians prescribing such diuretics will tell their patients to eat potassium-rich foods to compensate for the losses and, depending on the diuretic, may also advise a lowered sodium intake.
The relationship of potassium and sodium in maintaining the blood pressure is not entirely clear. Abundant evidence supports the simple view that the two minerals have opposite effects. In any case, it is clear that increasing the potassium in the diet can promote sodium excretion under most cicumstances and thereby lower the blood pressure. A lifelong intake of foods low in sodium and high in potassium protects against hypertension and is thought to play a role in the low blood pressure seen in vegetarians."
Also, MH has a Potassium Rich Herbs Syrup/Tincture product. Maybe you could check his website for more info.