RDI
Overdosing
Conception, pregnancy and breastfeeding
Food sources
Potassium is classified as a 'major' mineral and is the main component of the fluid inside our cells. Potassium has a balancing relationship with
sodium (salt) in the body. Together they regulate the fluid, nutrient and waste product movement into and out of our cells. This relationship also enables our muscles and nerves to conduct the 'electric charges' that send our body messages for movement and functioning. It is in this way that potassium helps to control a regular heartbeat. The kidneys regulate the level of potassium, sodium and water in the body.
Diets low in potassium seem to play a role in a person developing high blood pressure. Potassium rich foods tend to protect against high blood pressure and stroke. Low potassium tends to happen because of health conditions, rather than dietary deficiency. Dehydration or prolonged vomiting and diarrhoea can create a potassium deficiency as well as certain medications including some diuretics (that make you pass more urine), steroids and strong laxatives. Signs of potassium deficiency can include muscle weakness, confusion and if severe, paralysis.
Recommended Daily Intake (RDI) of potassium is about 50 - 140 mmol/litre. Most diets provide an adequate potassium intake.
Overdosing. Potassium toxicity can occur if a person takes too many potassium salts or supplements. (This can include some 'energy fitness shakes' that are high in potassium). Excessive potassium in the blood stream can cause muscular weakness, vomiting and in extreme cases can stop the heart beating.
Conception, pregnancy and breastfeeding. Potassium contributes to water balance in the body therefore some remedies used to relieve
fluid retention may cause you to lose extra potassium.
Cell salts may help with this imbalance.
Food sources. Potassium is found in most fresh fruits, vegetables, meats, chicken, fish, dairy foods, breads and cereals.