what plant foods contain potassium
Basic Description. Potassium is a mineral found in varying amounts in almost all foods. Vegetables, especially green leafy varieties, are generally our richest sources of potassium. We list three excellent sources of potassium, 16 as very good sources, and 39 as good sources by our Nutrient Rating System.asic Description. Potassium is a mineral found in varying amounts in almost all foods. Vegetables, especially green leafy varieties, are generally our richest sources of potassium. We list three excellent sources of potassium, 16 as very good sources, and 39 as good sources by our Nutrient Rating System.