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Guide to Foods High in Potassium
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Potassium is an essential mineral found in varying quantities within all food groups. Because potassium is so widely available, it should be relatively easy to meet the recommend amounts for good health. However, according to the US Dietary Guidelines Policy Document, American consumption of foods providing good sources of potassium is low enough to be a public health concern.
Foods high in potassium
Potassium is found in many types of food and it’s certainly not difficult finding good sources. Foods with the highest levels of potassium include potatoes, asparagus, avocados, nuts, bananas, spinach, tomatoes, oranges, cantaloupe melons, dairy products, red meat and fish such as salmon and cod. The University of Maryland Medical Center recommends adults should have a minimum daily potassium intake of 2,000mg. This can easily be achieved by eating one medium baked potato, 550mg – 25 pistachios – 970mg, seven ounces of low fat natural yogurt – 240mg, and a four ounce fillet steak – 470mg.
Why we need potassium
Potassium is an essential mineral and electrolyte (mineral salt) which helps maintain the correct acid-alkali balance within the body. It also helps to store blood sugar in glycogen form, which is vital for providing our muscles with energy. It is also important for maintaining heart rhythm regularity and for proper functioning of the nerve cells and organs. According to Harvard Health, it has been found that regular consumption of potassium rich foods can help to naturally lower and control blood pressure. This may then have the knock on benefit of lowering the risks associated with cardiovascular diseases which are linked to high blood pressure. A diet rich in potassium may also lead to a reduced risk of kidney stones and a decrease in bone loss.
Symptoms of potassium deficiency
It’s not always easy identifying the symptoms of potassium deficiency, since they can be confused with other causes. But the most common symptoms of low potassium include feeling overly tired with weakened muscles. Other symptoms include constipation, cramps, impaired kidney function and an irregular heartbeat.
Causes of low potassium levels
People with certain metabolic disorders or kidney disease may experience low potassium levels. More common causes of low potassium occur in those who are suffering from excessive vomiting or diarrhea which causes the loss of vital minerals, including potassium. This puts certain people at higher risk, for example those suffering from eating disorders such as bulimia nervosa where vomiting is a frequent occurrence. Likewise, someone taking too many laxatives which results in diarrhea is susceptible to low potassium levels. Further causes for potassium levels to temporarily drop include excessive sweating or exertion during sports. This is why sports players, for example, often eat a banana during their break.
While the majority of people who are eating a healthy and well-balanced diet should easily be able to meet their daily potassium requirements, those who are ill or eating a poor diet may need to eat more potassium rich foods. Fortunately, there are plenty to choose from, all of which are good for general overall health.
Sources: Harvard HealthUniversity of Maryland Medical CenterPotassium chartsUS Dietary Guidelines










