10 Best Potassium Supplement Reviews In 2023

Choosing the best potassium supplement can be confusing and frustrating. Especially if you’re new to supplements, it can be hard to understand what you need and why. The key is that many potassium supplements are a waste of money. There are a couple of factors that differentiate one supplement from another when it comes to effectiveness and value for money.

Best Potassium Supplement Reviews

1. Nutricost Potassium Citrate 99mg

Diet TypeGluten Free
Material Type FreeNon-GMO, Gluten Free, 3rd Party Tested
Allergen InformationSoy Free
Product BenefitsGluten Free

Nutricost only uses the best ingredients to ensure maximum quality and to help you feel your best! By keeping our recipes simple and clean, you get the best experience possible with Nutricost. All Nutricost supplements are manufactured in a GMP-compliant facility, provide high-quality ingredients, and offer a variety of options for your health support.

From exact ingredients to our simple formulations, each of our supplements states clearly what they provide so you know you’re getting what you want. Nutricost makes it our mission to provide you with clear choices to support health for EveryBODY.

1 Capsule = 1 Serving

Nutricost Potassium Citrate contains 99 MG of Potassium (elemental) in each capsule.

Serving size should not be exceeded without instruction from a healthcare professional.

Simplicity in a Bottle

Potassium Citrate is made up of citric acid and potassium. Potassium is mainly found in bananas, avocados, and salmon. Nutricost Potassium Citrate is high quality and ready to take.

Get What You Need

Though Potassium is found in many foods, it can be hard to get enough. Supplement your intake of Potassium today with Nutricost’s Potassium Citrate!

2. Best Naturals Potassium Gluconate Supplement

BrandBest Naturals
Flavor250 Count (Pack of 1)
Material Type FreeEgg-free, preservatives-free, wheat-free, lactose-free,corn-free, gluten-free,starch-free, sugar-free,yeast-free egg-free, preservatives-free, wheat free, lactose-free,corn-free, gluten-free,starch-free, sugar-free, yeast-free.
Allergen InformationGluten-Free
Dosage FormTablets

Naturals Potassium supplement provides 99 mg of active mineral in each serving. This potassium supplement is essential for supporting electrolyte mineral balance, especially when you are stressed or experience diarrhea. It is considered best for athletes and people who require high levels of physical activity, as it helps prevent cramping related to dehydration and hypokalemia (low levels of potassium).

Best Naturals Potassium Gluconate 595 mg 250 Tablets

  • Potassium supplement is necessary for supporting electrolyte mineral balance
  • Our Potassium gluconate 595mg provides 99 mg of active potassium mineral
  • Our potassium promotes muscle activity & nerve transmission
  • No Artificial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish, No Sodium.

About Best Naturals

Best Naturals was established in New Jersey with a passion and commitment to providing high quality and innovative food based nutritional supplements. If the world was a perfect place with everyone healthy around, we would not have existed. Unfortunately, it is not true. To support today’s lifestyle, Best Naturals have a passion to make a difference in the health and wellbeing of the consumers by providing top quality vitamins and dietary supplements and making an extra step to create a healthy world.

3. 365 by Whole Foods Market

Brand365 by Whole Foods Market
Diet TypeVegan
Material Type FreeNo artificial colors, preservatives free
Dosage FormTablets

365 by Whole Foods Market is a grocery store that offers a wide range of products at affordable prices in an environmentally responsible manner. The 365 brands were created to give people an alternative to mainstream supermarkets, and it provides customers with a better experience through affordable prices, great customer service, and an extensive range of goods.

Next-Level Necessities

Our basics are anything but. You won’t find hydrogenated oils or FD&C colors in our products — just quality staples with nothing to hide.

Body Care You Can Bank On

We’ve banned over 100 typically used ingredients from our body care products. Sayonara, benzalkonium chloride.

There’s an Organic for That

We’ve got organics and non-GMO products at prices that won’t burn a hole in your favorite pants. In fact, they’ll turn into boogie-on-aisle-six pants.

Awesomeness on Every Aisle

Whole grains, fair trade coffee, organic milk, frozen veggies and so much more, all flexing with our unmatched Whole Foods Market Quality Standards.

4. Lifetime Calcium Magnesium Potassium

Product BenefitsMuscle Health
Dosage FormCapsules
Item FormCapsule

At LifeTime, quality is among our highest priorities. All our products are carefully formulated and made with your health in mind. Because we believe a product is only as good as the ingredients that go into it, we use only the finest raw materials and make sure they are free of contaminants and impurities. You can rest easy knowing each LifeTime product meets the high standards of purity and potency you’ve come to expect from us – nothing less.

Better Together

Lifetime’s Calcium-Magnesium Potassium with Vitamin D & Boron combines three powerful health aids in one incredible supplement.

Hearth Health

Potassium has long been thought to support a healthy cardiovascular system. With 50 mg per serving, you can be sure your heart will thank you!

Bone and Muscle Health

Each serving packs 1,000 mg of calcium and 500 mg of magnesium. Calcium and magnesium work together and may support stronger bones and healthy muscles.

A LifeTime of Health

All our supplements are made with the highest quality ingredients – nothing more, nothing less – that’s our promise to you!

5. ALKAZONE Liquid Potassium Liquid Supplements

Diet TypeKosher
Material Type FreeSugar Free
Primary Supplement TypePotassium

Potassium is one of the most important alkaline minerals that helps all organs, body tissues, and cells to function properly. Within our body, the intracellular and extracellular potassium concentrations are closely monitored and managed by multiple feedback mechanisms. These mechanisms maintain an electrical potential which is the main force for transmission of nerve stimulus, muscle contraction, and most functions of your heart.

Potassium is an important mineral for the proper function of the many-body system and it is also often referred to as one of the key electrolytes in your body. The daily value for potassium is 3,500 mg, and it is the nutrient of concern for most Americans. A single bottle is a 30 ~ 40 days supply based on 3 servings per day: 90 servings. You can easily add Potassium to your drinking water by adding 4 drops to a glass of water (8 oz ~ 10 oz).

Helps maintain a Healthy Heart

Potassium is an essential mineral in maintaining heart health, as it may help regulate blood pressure.

Promotes Strong Bones

Potassium may help boost bone strength by aiding bone mineral density and reducing the risk of brittleness in bones.

Supports Muscular System

Potassium is key in aiding muscle function in the body by ensuring proper muscle contractions and growth.

6. Prescribed for Life Potassium Carbonate Powder

BrandPrescribed For Life
Material Type FreeGmo free,gluten free
Dosage FormPowder
Item FormPowder

Prescribed for Life Potassium Carbonate is USP grade, higher quality, and purity than food grade potassium carbonate. This means it is safe (high enough quality) for both food and medicinal uses. Potassium Carbonate can be used for leavening with baking, balancing pH in cocoa powder, or softening hard water.

High-Quality Nutrition

Prescribed for Life Potassium Carbonate Powder is a high-quality bulk nutrition product that provides health benefits. Our potassium supplement comes in resealable pouches that offer easy portability, as well as a long shelf life to ensure potency. This bulk potassium carbonate is packaged in the USA in accordance with GMP guidelines.

Dietary Supplement

Prescribed for Life Potassium Carbonate Powder is a dietary supplement that helps maintain healthy levels of potassium in the body. This powder comes in a resealable pouch so you can store it easily and keep it fresh. Take it with meals to resolve potassium deficiency and help prevent symptoms of hypokalemia, such as muscle weakness, palpitations, fatigue, and constipation.

7. Solaray Magnesium and Potassium Asporotates w/Bromelain

Material Type FreeGmo free,corn free,magnesium stearate free
Product BenefitsCellular Health
Dosage FormCapsules

Two of the most common minerals found within the body, magnesium and potassium provide essential support to hundreds of biochemical reactions. While eating a balanced diet is always preferred, when it comes to these two essential minerals, its may not be enough! In fact, some studies show that most American diets are not meeting the recommended daily allowance of either magnesium or potassium. That’s why we offer a powerful 1-2 punch of magnesium and potassium in one simple supplement: Magnesium & Potassium Asporotates with Bromelain!

While magnesium helps support everything from healthy muscle and cardiovascular function to relaxation, rest, and stress tolerance, potassium provides complementary support for healthy blood pressure and the flow of fluids and nutrients into and out of cells. Together, they work to support healthy electrolyte balance. To enhance bioavailability, our magnesium and potassium minerals are combined with aspartic, orotic, and citric acids for a chelated combination!

But our formula doesn’t stop there! We’ve also included bromelain – an enzyme from pineapple that may help support healthy digestion and healthy muscle recovery support – and a special base of herbs for additional nutritive support.

Power of Potassium

An abundant electrolyte, potassium provides essential support for healthy blood pressure & cellular health.

Trusted Brand

Manufactured in our own facility, Magnesium & Potassium Asporotates with Bromelain is non-GMO, vegan, and lab verified for potency, purity, and identity.

Benefits of Bromelain

Our superior formula includes bromelain – an enzyme from pineapple that may help support healthy digestion and muscle recovery.

Magic of Magnesium

Involved in more than 300 biochemical reactions in the body, magnesium supports healthy muscle & cardiovascular function, relaxation, sleep, and much more!

8. Life Strength Potassium Magnesium Complex

Product BenefitsMuscle Relaxation,Digestive Health
Dosage FormCapsules

Our Life Strength Potassium Magnesium Complex provides a potent blend of essential minerals, designed to help regulate blood sugar, glucose, and blood pressure levels, and boost heart, muscle, and bowel function. With broad-spectrum potassium aspartate and 5 different forms of magnesium – magnesium citrate, magnesium aspartate, glycinate, gluconate, and oxide – this potassium supplement is fast-absorbed and fast-acting.

High in Potassium

The part component of the supplement, potassium, is essential for the insides of the muscle cells. Potassium is involved in the electrical signals sent by muscles and lets them contract properly which helps to reduce muscle cramps.

Packed with Magnesium

The other half, magnesium, plays a role in regulating muscle contractions. Just like in the heart, magnesium acts as a natural calcium blocker to help muscles relax and reduce cramps.

Improves Overall Health

The supplement helps to relax muscles and improve sleep. The people who are in sports get a lot of cramps and the formulation helps reduce contractions.

9. Nature Made Potassium Gluconate 550 mg

BrandNature Made
Diet TypeGluten Free
Material Type FreeNo artificial flavors,preservatives free,gluten free
Primary Supplement TypePotassium

Nature Made Potassium Gluconate 550 mg Tablets help support heart, nerve, and muscle function. Sourced from high quality ingredients, this Potassium supplement is a gluten free dietary supplement that has no color added, no artificial flavors, and no preservatives. Potassium is a mineral that is easy to obtain through your diet mostly in fruit and vegetables and helps support heart function by helping to control the activity of the heart muscle.

This Potassium Gluconate supplement contains 90 mg of Potassium, which helps support heart health and also provides healthy nerve support and muscle support. Adults take one of these Potassium tablets daily with water and a meal. Nature Made’s commitment to your good health lies at the core of every product made. Nature Made supplements are quality you can trust.

USP has tested and verified ingredients, potency, and manufacturing processes. USP sets official standards for dietary supplements. Visit the USP verified website for more information. (1)Based on a survey of pharmacists who recommend branded vitamins and supplements

Nature Made Potassium Gluconate 550 mg Tablets

Nature Made Potassium Gluconate 550 mg contains 90 mg of potassium, which helps support several functions of the body such as heart and healthy nerve function.† Potassium helps support heart function by helping to control the activity of the heart muscle.

10. MaryRuth Organics Potassium Iodine Supplement

BrandMaryRuth Organics
Diet TypeVegan
Material Type FreeGmo free, sugar-free
Primary Supplement TypeIodine

At MaryRuth’s, we believe that making the best supplements for your health means creating products with non-GMO, plant-based, vegan ingredients, with the fewest number of allergens as possible.

We do our best to find only the highest quality ingredients and to formulate good-tasting products that assist in maintaining your health and aid your body on your way to wellness.

Mother-Daughter Owned

MaryRuth’s was founded by the chef, nutritional consultant, and educator MaryRuth Ghiyam. Owned and operated by MaryRuth and her mother Colleen. Based out of sunny California!

An Essential Micronutrient!

Iodine, An Essential Micronutrient For Health. This bottle will last you: a little goes a long way! At particular risk for iodine deficiency are those on a vegan or vegetarian diet, or those pregnant and nursing.

For Most Lifestyles

Whatever lifestyle you live, you can support it with MaryRuth’s!

Why do people require potassium?

Abnormally low or high potassium levels in the blood are uncommon in otherwise healthy adults with appropriate kidney function.

Certain factors, however,

Potassium levels can be reduced by using Trusted Source. Here are several examples:

  • diarrhea
  • vomiting
  • sweating profusely
  • consuming food after a time of fasting
  • overuse of laxatives
  • diuretics in excess
  • dialysis
  • magnesium deficiency
  • the ketogenic diet
  • consuming clay (a type of pica)

Potassium supplements may be beneficial for people who have any of the above risk factors.

The keto diet with potassium supplements

Keto diets are low-carbohydrate, high-fat, moderate-protein diets. Some people use the keto diet to help them lose weight. These diets may also be recommended by doctors for the following conditions:

  • epilepsy resistant to medication
  • Type 1 glucose transporter deficient syndrome
  • lack of pyruvate dehydrogenase

The keto diet raises the body’s acidic environment. This can lead to metabolic acidosis (MA), a condition in which the blood gets overly acidic. This can cause kidney difficulties as well as a decrease in bone mineral density.

In one 2020 research project according to Trusted Source, oral potassium citrate supplementation may reduce the risk of MA in children who follow a ketogenic diet. Potassium citrate, according to the researchers, functions as an alkalizing agent to counteract the risk of MA.

More research is needed to determine whether or not everyone on a keto diet should supplement with potassium citrate.

It’s also worth noting that getting MA from a keto diet is exceedingly uncommon in persons who don’t have any other health issues.


Potassium salts are found in almost all dietary supplements. The potassium salt is a substance that contains potassium as well as one or more additional elements.

Potassium chloride is commonly found in dietary potassium supplements. Others, however, contain potassium salts such as:

  • citrate of potassium
  • phosphate of potassium
  • aspartate potassium
  • bicarbonate of potassium
  • gluconate of potassium

Because these salts include varying levels of potassium, the supplement label may indicate the amount of pure, or elemental, potassium in the product.

Potassium-containing multivitamins and mineral supplements typically contain around 80 milligrams (mg) of elemental potassium. Supplements containing solely potassium provide up to 99 mg of elemental potassium.

People should examine the specific product labels to establish the necessary quantities because different supplements contain different amounts of potassium.

Side Effects

Supplementing with potassium can have minimal digestive adverse effects.

a reliable source

High potassium doses can cause hyperkalemia or high potassium levels. The kidneys will remove any extra potassium from the body, therefore this disease is uncommon in adults with healthy kidney function.

If a person with compromised kidney function consumes too much potassium, they may develop hyperkalemia. The following symptoms can be caused by hyperkalemia:

  • a searing sensation in your limbs
  • muscle wasting
  • paralysis
  • palpitations (heart palpitations)
  • heart arrhythmias

Some of these side effects can be fatal.

How to Use

A person should consult a doctor before using a potassium supplement. Because most occurrences of hypokalemia are caused by something other than a shortage of potassium, it’s critical to figure out what’s causing it and treat it.

If someone is thinking about taking a potassium supplement, they should consult their doctor or pharmacist for dosage recommendations.


More than half of those with low potassium levels, according to experts, may also have low magnesium levels. Magnesium shortage can cause potassium deficiency by causing potassium to be lost in the urine.

Treatment for both magnesium and potassium shortages should be given to people who have both deficiencies.

Many magnesium supplement manufacturers claim that their products can help avoid muscle cramps. Magnesium supplementation, on the other hand, is unlikely to provide clinically significant protection of exercise- or disease-related muscular cramps, according to a meta-analysis of seven randomized controlled trials published in 2012.

More research is needed, according to this meta-analysis, to evaluate whether magnesium supplementation is effective for pregnancy-related muscular cramps.

Final Word

So, hopefully, you’ve found this article enlightening enough to help you make up your mind one way or another. I really liked Excell’s Potassium Gluconate because it has great reviews and all of the features that I wanted. However, you may prefer Natrol’s Potassium Chloride because it is more effective (in the case of having too much sodium). Whatever the case, I hope that this article has provided you with enough information to make an informed choice!

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