Rich sources of potassium are found in apricots, cantaloupe, avocados, bananas, brewer's yeast, raisins, dates, prunes, yams, mushrooms, garlic, nuts
, winter squash and black-strap molasses. Potassium may also be obtained from the following herbs: red clover, sage, catnip, hops, horsetail, nettle, plantain and skullcap. Caffeine and tobacco reduce the absorption of potassium. People at risk for insufficient potassium intake include alcoholics, drug addicts and crash dieters.