Best Potassium Supplements Ranked for 2018 – Top 10 Brands


Jump Ahead to the Best Potassium Products

The human body has certain dietary needs that must be met in order to function properly. Besides obtaining macronutrients, the body also needs micronutrients. Micronutrients are categorized into two essential groups: vitamins and minerals. Vitamins and minerals play important roles in human growth, development, and regulation. Micronutrients are important for regulating the metabolism, cellular pH balance, bone density, and heartbeat.

One micronutrient is particularly good at regulating cellular pH, regulating the metabolism, and supporting cardiovascular health. This micronutrient is a mineral called potassium. It is widely known to be a mineral found in bananas! This mineral is necessary for your health, but many people are actually potassium deficient.

Potassium can be taken as a supplement. Powerful potassium supplements can make a major difference in your life and your health. This guide will tell you all about potassium, why your body needs it, and how the best potassium supplements can help you obtain it. Besides ensuring that you will not be potassium deficient, potassium supplements can offer extra benefits that this guide will explore.

What is Potassium?

Potassium is a mineral that the human body needs in order to function at a cellular level. It is one of seven essential macrominerals, which include magnesium, calcium, sodium, phosphorus, chloride and sulfur. It is also needed for the proper function of organs and tissues. This mineral is also considered an electrolyte.

It is also the major intracellular cation in the human body, and more than one third of the body’s energy is used for the process of pumping potassium and its ionic counterpart, sodium, between cells. Potassium plays a particularly important role in cardiovascular health, fluid balance, and electrical activity of muscles; including the heart. Close to 70% of the potassium in your body is found in bodily fluids like blood, plasma, and sweat, while the remaining potassium is stored in your bones.

In its pure form, it is a soft and silver reactive metal; similar to sodium. It is in the alkali metal group, which is a group of metals identified by characteristics such as electropositivity and reactivity. The metal tarnishes in reaction to air within minutes. It is the 7th most abundant metal in the Earth’s crust.

Theoretically, the proper amount of potassium should be consumed by all humans from a diet heavy in fruits and vegetables and other potassium rich foods. However, this is no longer the case for the vast majority of the population. In the United States alone, a country where the majority of the population is well fed, 98% of the population’s diet is potassium deficient.

What is Potassium Deficiency?

Potassium deficiency, also known as hypokalemia, is a condition in which the body does not have enough potassium. There are many causes that can contribute to the development of this condition. Potassium deficiency can be caused by potassium loss, which can occur through:

  • Poor diet
  • Chronic kidney disease
  • Diarrhea
  • Diabetic ketoacidosis
  • Excessive use of alcohol
  • Excessive use of laxatives
  • Excessive sweating
  • Use of diuretics
  • Vomiting
  • Antibiotic use

It can also be caused by not consuming adequate amounts of potassium through your diet. The average healthy adult should consume at least 4,700 mg of potassium per day. Sources of potassium include many raw fruits and vegetables, such as bananas, leafy greens, avocados, sweet potatoes, acorn squash, and more. It can be hard for someone to obtain all the potassium they need through diet alone, which can lead to potassium deficiency.

Symptoms of potassium deficiency do not usually occur until the deficiency has become extreme. In most cases, potassium deficiency is found through blood tests for other conditions. Once potassium deficiency becomes pronounced, symptoms will occur, including:

  • Fatigue
  • Weakness
  • Muscle cramps
  • Constipation
  • Bloating
  • Pain in the abdomen

The most concerning symptoms are arrhythmias, or abnormal heart palpitations. These arrhythmias can be life-threatening.

What Are Potassium Supplements?

Potassium supplements are bioavailable forms of potassium that can be taken to support your health in multiple different ways. Most potassium supplements are a form of potassium salt. These include variations of potassium that can include phosphate, chloride, bicarbonate, citrate, gluconate, orotate or aspartate. Each potassium salt can be helpful for different things as a supplement. Over the counter potassium supplements are formulated at effective doses.

Potassium supplements are often used to treat potassium deficiency. When a person is potassium deficient, they may experience irregular heartbeat, muscle weakness, mood changes, nausea, and vomiting, as well as other, more minor side effects. Potassium deficiency is extremely common and also known as hypokalemia. The best potassium supplements can help prevent deficiencies, and also be used to support many aspects of overall health.

Potassium supplements come in multiple forms, such as powders, tablets, capsules, liquids and granules. Various tablets and capsules have been made for different release rates. One form is contained within a wax matrix and referred to as Klor-Con. The wax matrix coating allows for a controlled release of potassium into the digestive tract. There is a capsule form, known as Micro-K or Klor-Con M, that has a similar effect. It provides a very slow release of potassium to prevent concentrations from reaching a threshold in the intestinal tract.

Benefits of Potassium

Here is a list of the ways that potassium can benefit your health:

  • Supporting Cardiovascular Health – Potassium electrolyte properties maintain a healthy heart. The heart is a large muscle that uses electrical pulses to contract, pumping blood throughout the body. Potassium plays a key role in ensuring that the heart’s rhythm is steadily maintained. Low levels of potassium can affect the heart by weakening its contractions and disturbing its rhythm.
  • Manage Blood PressurePotassium reduces the effects of sodium on blood pressure. Sodium absorbs water in the blood vessels, which increases the volume of blood inside the vessels. The increased volume of blood increases the pressure exerted on artery walls, which means sodium increases blood pressure. Potassium counteracts sodium and can help to maintain healthy blood pressure levels.
  • Supporting Brain Health – The human brain functions optimally when potassium levels are adequate. Potassium, being an essential electrolyte, plays an important role in neuron functions because neurons work through electrical signals. Neurons use electrical signals to store memories and to learn, and potassium supports these neurological functions.
  • Maintaining Bone Density – Potassium neutralizes the metabolic acids that have depleting effects on bone structures. These metabolic acids slowly deteriorate bone structures if they are not neutralized, which contributes to loss of bone density and bone strength. If potassium is not consumed in adequate amounts, the alkalizing mineral compounds that are part of bones are drawn upon to help reduce effects of metabolic acids. This contributes to increased bone resorption and loss of minerals in the urine.
  • Maintaining Muscular Health and Function – Potassium plays a large role in muscle contraction, which is the most fundamental function our muscles have. As an electrolyte, it helps to transmit nervous signals to the muscles that tell them to contract. Muscle cells respond to these impulses, causing sodium ions to travel into the muscle cells, where potassium is located. Potassium ions then move through the concentration gradient out of the muscle cell, causing the muscles to contract.
  • Supporting the Nervous System – Potassium and sodium ions help nerves send electrical impulses, which is the basis of how the nervous system functions. The nervous system effects everything from your sense of smell, touch, and taste, to your ability to move your muscles. Potassium is needed every day in order for the nervous system to function properly.

In addition to these main benefits, potassium also plays a number of other important roles in the body. Proper potassium levels are essential for overall health, and powerful potassium supplements can help.

Who May Benefit from Potassium?

Almost everyone can benefit from potassium supplements, because a lot of people in America are not consuming enough of it. Potassium is one of the most fundamental nutrients that your body needs daily, and not getting enough of it in your diet can cause a world of problems.

  • Potassium deficiency – as mentioned, approximately 98% of Americans do not get enough potassium in their diet. This can often lead to potassium deficiency, a common health concern that can cause a number of symptoms, ranging from mild to severe. Potassium supplements can help make it easier to get enough of this important mineral.
  • AtherosclerosisAtherosclerosis is a condition in which plaque builds up along artery walls. Plaque is made up of fat, cholesterol, calcium, sodium, and other substances found in the blood stream. Plaque hardens over time and narrows the arteries, limiting oxygen-rich blood flow to essential organs.
  • CataractsCataracts are a condition in which the lense of the eye clouds over and impairs vision. They are extremely common and can occur in one or both eyes. Risk factors for cataracts include aging, smoking, and diabetes. When cataracts form, sodium and calcium levels increase, while levels of potassium and vitamin C decrease.
  • DehydrationDehydration is a condition in which more bodily fluids are lost than consumed, resulting in a reduced level of hydration. Dehydration is caused by a number of factors, including lack of drinkable water, overexertion, significant injuries, diabetes, vomiting, diarrhea, etc. Another cause of dehydration is low potassium.
  • DiabetesDiabetes is term for a number of conditions that affect an important metabolic hormone called insulin. The most common types of diabetes are type 1, type 2, and gestational diabetes. Type 1 diabetes is called insulin-dependant diabetes, and is an autoimmune condition that affects people from an early age into adulthood. Type 2 diabetes usually occurs in adulthood and is the most common form, and occurs through insulin-resistance that has developed often due to an unhealthy diet and obesity. Gestational diabetes occurs during pregnancy.
  • Hepatitis – Hepatitis is a blanket term for a range of diseases which result in inflammation of the liver. There are three kinds of Hepatitis: A, B, and C. The most common form of hepatitis is hepatitis C, which is most commonly contracted through the sharing of needles. It often has no symptoms, and can lead to cirrhosis, or scarring of the liver. Those with hepatitis are very vulnerable to the effects of sodium and the resulting fluid retention. Salt can worsen the disease.
  • High blood pressureHigh blood pressure, also known as hypertension, is a condition in which blood flow exerts high amounts of pressure on artery walls. High blood pressure is caused by numerous factors, such as being overweight, smoking, too much salt in one’s diet, over consumption of alcohol, lack of physical activity, etc. High blood pressure increases risks of cardiovascular diseases.
  • OsteoporosisOsteoporosis is a bone disease. It is a lack of bone mass due to either bone loss, or the body not making enough bone mass. In osteoporosis sufferers, the bones are brittle and have an abnormal tissue structure. It increases the chances of breaking bones, limits mobility, and causes permanent pain. There are a large variety of factors that contribute to the development of osteoporosis, including autoimmune disorders, mental illness, blood disorders, cancer, gastrointestinal disorders, etc.
  • Stroke – A stroke is when blood flow to the brain temporarily ceases and brain cells become damaged. This can cause permanent damage to the ability of your body to function in a number of ways, including accurate speech, mobility, cognition, etc. It can also be fatal. In the best cases, there is no permanent damage, but having one stroke increases your chances of having another. Stroke risk factors include age, high blood pressure, diabetes, smoking, other cardiovascular diseases, and more.
  • Kidney Stones – A kidney stone is a hard and crystalline mineral structure that is sometimes found in the kidney or urinary tract. Kidney stones form when there is a decrease in urine volume or excess minerals in the urine. One huge risk factor for kidney stones is dehydration, as well as gout.

How To Take Potassium

Most potassium supplements contain a variant of potassium chloride, or potassium salt. Potassium salts are water soluble, which means they can be absorbed well in water and do not require fat to be absorbed. Because of this, potassium supplements do not have to be taken with food. That being said, it does need to be taken with a liquid, preferably water or juice.

Even the best potassium supplements can make your stomach upset if taken without any liquids. It is usually taken two to four times in a day with or directly after a meal. Do not lie down within 10 minutes of taking the supplement (some potassium supplements recommend longer) so that the potassium does not happen to travel back up the esophagus. Extended-release forms should be swallowed whole, and liquid, powder, granules, and effervescent tablets should be dissolved in water.

Make sure not to take more potassium supplements than the directions recommend. Taking lots of potassium can be dangerous, and can cause hyperkalemia.

Are There Any Side Effects?

Potassium supplements do not usually cause side effects if they are taken as directed. Some mild side effects can occur, often due to taking the supplements without enough liquid. Side effects include gas, nausea, vomiting, diarrhea, or abdominal discomfort. Make sure not to take more than the directions instruct, unless directed by a doctor. Make sure to speak with your doctor before you take any supplements featured on this website.

What to Look for in a Good Potassium Supplement

The best potassium supplements provide you with the benefits of the mineral, but certain forms have different subtleties. The different varieties of potassium supplements have different benefits, and when choosing a top potassium supplement, you should have this knowledge under your belt:

  • Potassium Chloride – Potassium chloride is a good potassium supplement for supplementing your daily intake of potassium, and preventing hypokalemia, or potassium deficiency.
  • Potassium Phosphate – Potassium phosphate is used to supplement daily phosphate intake, as well as in conjunction with sodium phosphate to change urine acidity and prevent kidney stones.
  • Potassium Citrate – Potassium citrate is often used to change urine acidity to prevent gout, acidosis, and kidney stones. It is also used to supplement daily potassium intake and is one of the best potassium supplements out there because it is found naturally in foods.
  • Potassium Bicarbonate – Used for severe potassium deficiencies, potassium bicarbonate bubbles and neutralizes acid in the stomach.
  • Potassium Gluconate – Potassium gluconate is also a good potassium supplement for supplementing your daily intake of potassium, and preventing hypokalemia, or potassium deficiency. It is also beneficial for supporting muscle health and storing blood sugar as glycogen.
  • Potassium Aspartate – Potassium aspartate is potassium combined with the amino acid aspartate, which is used to increase potassium absorption and improve athletic performance. It’s a very commonly used form, and is widely available.
  • Potassium Orotate – Potassium Orotate is a very bioavailable form of potassium that is bound to orotic acid. It is a strong potassium supplement, but is fairly new and not often found in commercial over the counter potassium supplements.

For the purpose of preventing hypokalemia and gaining potassium benefits, all of these supplements will work, but some of them are more effective at particular things than others. Some products will also offer a blend of multiple types, which can be beneficial. When choosing a potassium supplement, keep in mind what benefits you prioritize when exploring your options.

Top 10 Potassium Products Compared

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1. Now Foods Potassium Citrate Caps


NOW Foods Potassium Citrate Capsules are capsules of potassium citrate. This supplement uses potassium citrate, a form of bioavailable potassium that is found naturally in some foods. It is absorbed within the body naturally, and is number one on our list of the top 10 potassium supplements on the market!


  • Extremely affordable
  • Increases energy levels
  • Healthy potassium dosage
  • Supports overall health

What’s in it:

  • 99 mg potassium citrate

Who makes it: This product is made by NOW Foods, a company with the reputation for affordable, environmentally sustainable, and all-natural products. They have been around since 1968 and are one of the natural supplement industry’s pioneers. Founded by Elwood Richard, the same family has owned it since their inception, making their company able to adapt to the market and build on their products. NOW foods supplements can help you improve your health, and they make one of the top potassium supplements on the market.

Bottom line: This is an all natural form of pure potassium citrate that is the perfect all-around potassium supplement. It is produced by a well known, ethical, and responsible company who has the best interest of the consumer in mind. It provides all of the benefits of potassium with the added support of kidney health, at an extremely affordable price.

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Where to Get It

2. Emergen-C Super Orange


Emergen-C Super Orange is almost a household name due to the popularity of the supplement. It is a effervescent tablet that you add to water and drink, almost like a soda. It is known for its vitamin C content that supports the immune system. However, it is also an effective potassium supplement! It contains electrolytes, and one of the most powerful among them is potassium.


  • Contains additional benefits of vitamin C
  • Contains additional benefits of major electrolytes
  • Contains additional benefits of antioxidants
  • Contains 7 B Vitamins
  • Well known name brand
  • Healthy potassium dosage

What’s in it:

  • 200 mg potassium bicarbonate,
  • 1,000 mg Vitamin C,
  • Added electrolytes, various antioxidants, B vitamins, and more

Who makes it: Emergen-C Super Orange is manufactured by the Alacer corporation, which was founded in 1972. In 2012, Alacer was incorporated into Pfizer, which is a leading supplement producer in the industry. Pfizer produces medicine and supplements and distributes their life-changing products globally as a leading advocate for healthcare. With Pfizer’s knowledge of the industry, they have been able to provide Emergen-C to more customers while continuing to produce it in the U.S.A. with high quality standards.

Bottom line: This supplement does not only provide you the potassium benefits, it also supports the immune system with its high vitamin C content. Additionally, it contains 7 B Vitamins, antioxidants, and the four major electrolytes; which includes potassium. This is a very well rounded potassium supplement that offers a lot for your health, made by a trustworthy brand. It’s also a tasty way to take potassium!

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Where to Get It

3. Nature Made Potassium Gluconate


Nature Made Potassium Gluconate is a potassium supplement that comes in the form of a tablet. Potassium Gluconate is extremely effective at supplementing your daily potassium intake, and preventing potassium deficiency.  Potassium Gluconate is one of the most effective potassium supplements on the market.


  • Healthy potassium dosage

What’s in it:

  • 90 mg potassium gluconate

Who makes it: Nature Made is a company that has been producing natural supplements for over 20 years. They contribute to health in more ways than just producing affordable, health-supporting supplements; they also contribute their knowledge to health science. They support public studies and clinical trials, and conduct their own. All of their products are based in science, and research has proven their efficacy.

Bottom line: This product is the quintessential potassium supplement. It is pure, provides a healthy potassium dosage, and all the benefits you could ask for of potassium. It is produced by a company that is dedicated to health and natural supplements, and has been clinically tried and proven. This easy to use potassium pill is perfect for experiencing all that the best potassium supplements have to offer.

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Where to Get It

4. Twinlab Potassium Caps


Twinlab Potassium Caps are natural potassium citrate and potassium aspartate supplements that have been packed into an easy-to-take pottasium pill. Each capsule contains a healthy potassium dosage and provides the benefits of this important electrolyte. This product is only produced in NSF Good Manufacturing Practice registered facilities, and comes in a glass bottle to preserve freshness. Due to its inclusion of aspartate in its formula, its bioavailability is also enhanced.


  • Enhanced bioavailability


  • Pricier than some alternatives
  • Ratio of potassium citrate to aspartate is undisclosed

What’s in it:

  • 99 mg potassium citrate and potassium aspartate

Who makes it: Twinlab was created and founded in 1968 by David Blechman, who had over 20 years of experience in the pharmaceutical industry. It was named Twinlab due to its budding formation at the time of the birth of his twin children. In the 1980’s the company branched out from its original liquid protein supplement into herbal supplements, vitamins, minerals, and teas. Their products are currently available in 55 countries worldwide.

Bottom line: It is produced by a reputable company in reliable facilities. However, the product is a bit pricier than some alternatives, and the amounts of each form of potassium salt are undisclosed; meaning that there may not be an active amount of one or the other.

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Where to Get It

5. Solaray Potassium


Solaray Potassium is a potassium supplement that includes an amino acid complex in potassium pill form. This supplement claims that unlike other potassium supplements, it does not react with soy. It also provides your body with additional amino-acids, which are the building blocks of proteins and essential to your health.


  • Provides additional amino acids
  • Healthy potassium dosage


  • Amino acid complex does not disclose what amino acids are included
  • Includes more fillers than alternatives

What’s in it:

  • 99 mg potassium amino acid complex

Who makes it: Solaray is a natural vitamin, mineral, and supplement brand. It is part of the Nutraceutical brand family. Launched in 1973, is has accumulated over 1,000 products with a wide variety of supplements, herbal extracts, and more.

Bottom line: This supplement offers an affordable potassium pill behind a well known brand that is committed to natural products. It provides all of the benefits of potassium, but it has a couple of drawbacks. The potassium salt they use in their formula is labeled as “potassium amino acid complex,” with the term “complex” being an ambiguous term. The amino acids that they use are not listed, so you have no idea how beneficial they may be. This supplement also uses more fillers, and more fillers mean less bang for your buck.

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Where to Get It

6. Solgar Potassium Tablets

Solgar Potassium Tablets are supplements of potassium gluconate in tablet form. Potassium gluconate is particularly effective in regards to potassium’s effect on the muscles, especially in providing muscles with glycogen. This supplement is great for an athlete looking to improve their athletic performance while adding additional potassium to their diet.


  • Gluten, wheat, and dairy free


  • Pricier than alternatives
  • Uses more fillers

What’s in it:

  • 99 mg potassium gluconate

Who makes it: Solgar is a natural supplement producer that has been around since 1947. This company’s mission is to provide their customers with innovative, top quality, and scientifically-backed products. Their products are exclusively distributed by retailers in the natural supplement industry with the knowledge and tools to effectively help consumers find the right product for them.

Bottom line: This is a good potassium supplement for athletes. It promotes the storage of blood sugar as glycogen, which feeds your muscles energy and improves athletic performance. However, there are cheaper alternatives, and there are alternatives that use less fillers.

7. Nature’s Bounty Potassium Gluconate


Nature’s Bounty Potassium Gluconate is a potassium gluconate supplement that comes in potassium pill form. This potassium supplement is made in the U.S.A. with ingredients selected from around the world.

What’s in it:

  • 99 mg potassium gluconate

Who makes it: Nature’s Bounty is a natural supplements producer that has been in the industry for decades. They are committed to quality in every step of the process, from the scientific research, to the ingredients, to the GMP certified facilities where they are produced. Their facilities have been successfully audited by the United States Pharmacopeia and STR (Specialized Technology Resources), which is an organization that ensures that supplement companies adhere to quality standards.

Bottom line: This is a basic potassium supplement that offers the main potassium benefits, with particular emphasis on the benefits of potassium in regards to muscular function. Potassium gluconate is a good potassium supplement for athletes, because it helps to fuel muscles with glycogen stores. However, just like the previous supplement, it contains some fillers.



NOW Foods Full Spectrum Mineral Caps are capsules of trace minerals. This supplement provides the “full spectrum” of the minerals our body requires. One of the minerals it provides is potassium, an electrolyte essential to nervous and muscular function, as well as overall health. It also includes vitamin D3, calcium, iodine, magnesium, zinc, selenium, copper, manganese, chromium, and molybdenum.


  • Gluten and dairy free
  • Soy free


  • More expensive than alternatives
  • Low potassium dosage

What’s in it:

  • 50 mg potassium chloride
  • A variety of trace minerals such as Manganese, Zinc, Chromium, Copper, etc.

Who makes it: This product is made by NOW Foods, one of the biggest and best-known companies in the supplement industry. With decades of industry experience, NOW is a proven leader in the natural supplement world.

Bottom line: This supplement contains potassium, but is more of an all-around mineral supplement designed to ensure that your body consumes enough trace minerals daily. It does contain enough potassium to be beneficial, but there are more effective potassium supplements out there.

9. Jarrow Formulas Bone-Up


Jarrow Formulas Bone-Up is a supplement designed to support the strength and integrity of bones. It includes a rich amount of type I collagen, which is a protein that is abundant within bone structures and necessary to bone health. It includes numerous bone-health supports, and one of them is potassium. Potassium protects bone strength by alkalizing the body so that the alkalizing matter within the exteriors of bones aren’t used to balance pH instead. When there is no other source of an alkalizer, bones are used, which reduces bone mass.


  • Supports strong, healthy bones


  • More expensive than alternatives
  • More potential side effects

What’s in it:

  • 99 mg potassium citrate
  • Added vitamin C, vitamin D3, copper, magnesium, and more.

Who makes it: Jarrow formulas is a nutritional supplement supplier that was founded in 1977 and incorporated in 1988. It is based in Los Angeles, California and distributes all throughout the U.S., Canada, and Mexico. Jarrow Formulas funds research into nutritional supplements in order to ensure that their customers receive the highest biological value from their products.

Bottom line: This supplement is geared towards bone health. If that is the most important benefit you want to gain from a potassium supplement, this is the perfect supplement for you. It is most effective in that aspect, but it may not be as effective in other areas.

10. Country Life Potassium


Country Life Potassium is a potassium supplement that comes in tablet form. The formula includes potassium citrate and potassium amino acid chelate at an effective potassium dosage. This supplement is a basic potassium supplement that can be used to redeem the primary benefits of potassium..


  • Vegetarian


  • Potassium complex does not disclose ratio of potassium citrate to potassium amino acid chelate
  • Potassium amino acid chelate does not disclose which amino acids were used
  • Includes more fillers

What’s in it:

  • 99 mg potassium (as potassium citrate, potassium amino acid chelate)

Who makes it: Country Life was founded in Long Island, New York in 1971. They have been a leader in the natural health industry for 40 years and counting. They have four different brands that suit a variety of health needs, from dietary supplements to protein supplements for athletes. In 2012, the company received the USDA Organic Manufacturing Certification.

Bottom line: This is a good potassium supplement for experimenting with the mineral. It provides potassium at an entry level for consumers, and at an affordable price. However, the potassium contents are in ways ambiguous, and the product uses more fillers than other alternatives.

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