Similarly to Zinc, there is no storage of Potassium in the body, and it is easily lost in cooking, canning, and processing of foods. Some is lost through perspiration, and the adrenal hormone aldosterone also stimulates the elimination of potassium by the kidneys. Individuals with a family history of stroke may want to make sure that they always meet, or even exceed optimal potassium requirements through diet or supplementation, particularly when consuming meals containing above-average amounts of sodium - which should be avoided whenever possible... Full Text