Potassium is a mineral rather than a vitamin but is important for good health. Eating foods rich in potassium will help cut your stroke risk. It's protective effect is thought to be linked to its blood pressure-lowering properties.
BUT If you have significant kidney problems or are on some blood pressure-lowering medications, too much potassium can be harmful, so check with your GP first if you are in one of these groups.
Top potassium sources include: baked potatoes, salmon, bananas, broccoli, milk, oranges, green beans, carrots and apples.
Good Housekeeping, January 2015
