10 Best potassium supplements (2025)

Potassium supplements are essential for maintaining optimal health, especially for those with dietary restrictions or specific health conditions. In 2025, the 10 best potassium supplements include options like K+ by Klean Athlete, Potassium Citrate by NOW Foods, and Electrolyte Powder by Ultima Replenisher. Other top choices feature Potassium Gluconate by Solgar, Nature Made Potassium, and Potassium Aspartate by BulkSupplements. Additionally, products like Garden of Life’s Organic Electrolyte Powder and Jarrow Formulas’ Potassium are highly rated. These supplements not only support muscle function and heart health but also help maintain proper fluid balance in the body.

SaleBestseller No. 1

Nature Made Potassium Gluconate 550mg, 100 tablets

Special form of potassium to help support heart muscle activity
Formulated for easy absorption
Gluten free cardiovascular support
Gluten Free

Bestseller No. 2

Life Enhancement Potassium Supplement, 1020 mg,120 Servings, 240 caps

PURE POTASSIUM SUPPLEMENT: Each serving contains 1020 mg 22% RDI Potassium (as potassium bicarbonate) in easy-to-swallow veggie capsules with less than 1% Magnesium Stearate. Each one of our potassium bicarb pills contains 510 mg of this essential nutrient for potent and powerful support.
POTASSIUM BICARBONATE SUPPLEMENT: Potassium is one of the most important minerals in the body and most of us are not getting adequate amounts in our diets. Improving your potassium intake is a great way to support the complete health and total well-being of your entire body. It's a daily dose of potassium conveniently!
DAILY SUPPORT: Our potassium capsules are designed to improve your daily potassium intake, conveniently and easily. Our potassium capsules offer you simple and natural support for a healthier you.
A BRAND YOU CAN TRUST: Life Enhancement has been creating and manufacturing its products for over 25 years. Starting with DHEA in 1995, Life Enhancement has been the leader in introducing supplements to the market.

SaleBestseller No. 3

NOW Foods Supplements, Potassium Citrate 99 mg, Supports Electrolyte Balance and Normal pH*, Essential Mineral, 180 veg Capsules

Now Foods

SaleBestseller No. 4

Nutricost Potassium Citrate 99mg, 500 Capsules

Maximum Serving Size 99mg of Potassium (elemental) Per Capsule.
500 Potassium Citrate Capsules Per Bottle.
Do not exceed recommended serving size.
Non-GMO, Gluten Free, Soy Free, 3rd Party Tested.
Made in a GMP Compliant, FDA Registered Facility. Lid May Be Blue or White.

SaleBestseller No. 5

Nature's Bounty Potassium, Supports Fluid Balance, Dietary Supplement, 99 mg, 100 Caplets

Supports Fluid Balance
Supports Muscle Activity
Involved in Normal Heart Function
Potassium is an Essential Mineral Needed by the Body
It also aids in the mineral balance of the blood and supports muscle activity.*

Bestseller No. 6

Pure Encapsulations Potassium (Citrate) - Essential Electrolyte Supplement to Support Nerve & Muscle Function, Adrenals, Hormones, Heart Health & Energy* - Potassium Citrate Capsule - 180 Capsules

Potassium Citrate for Cardiovascular Function: Potassium is an essential mineral offering nutritional support for normal functioning of organ systems*
Heart Health Supplements: Potassium is essential for nerve support; contraction of cardiac, smooth, and skeletal muscles; and gastric secretion*
Potassium Citrate for Electrolyte Balance: Potassium works with sodium to maintain water balance, heart rhythm, nerve, and muscle function*
Nerve Health Supplement: Potassium supports important bodily functions such as nerve health, renal function, tissue synthesis, and carbohydrate metabolism
Pure Difference: What we leave out matters, too; Pure Encapsulations products are free from common allergens, artificial or unnecessary ingredients, and GMOs

SaleBestseller No. 7

Nature Made Potassium Gluconate 550 mg, Dietary Supplement for Heart Health Support, 100 Tablets, 100 Day Supply

Heart health support supplement: contains one 100 count bottle of Nature Made Potassium Gluconate 550 mg Tablets for a 100-day supply
These Nature Made Potassium Gluconate Tablets help support fluid balance and offer nerve, muscle and heart function support
These Potassium supplements provide 90 mg of Potassium, which is an essential mineral that your body needs to work properly
Adults take one 550 mg Nature Made Potassium Gluconate tablet daily with water and a meal
Gluten free dietary supplement with no color added, no artificial flavors and no preservatives

SaleBestseller No. 8

Life Extension Potassium with Extend-Release Magnesium – Heart health supplement for blood pressure support with two essential minerals – Non-GMO, vegetarian, gluten-free – 60 capsules

Potassium for healthy blood flow—Potassium wears many hats, especially when it comes to cardiovascular health. It supports healthy blood vessel expansion, a process known as vasodilation. This encourages healthy blood flow so that the heart can pump blood efficiently. This in turn provides blood pressure support. This formula provides 99 mg of potassium chloride.
Magnesium for all-around heart health—Magnesium supports many functions within the body, including bone health, but it’s particularly famous for heart health—specifically healthy vascular function. Magnesium relaxes the smooth muscles in the blood vessels, a key component of blood pressure support. It even promotes healthy heart rhythms and arterial health. This formula includes two types of magnesium, magnesium oxide and magnesium citrate, for quick-acting and extended-release benefits.
Special dual-action mineral formula—Magnesium and potassium have been called “sister minerals” because they are involved in many of the same biological reactions. While it is beneficial to take them as standalone mineral supplements, taking them together is more convenient.
Ingredients matter—Sourced using only the finest raw ingredients with the purity and potency your body deserves. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every product we produce.
Live your healthiest life—For over 40 years, we’ve been developing advanced, effective formulas made with the highest standards and based on the latest scientific findings. We believe the answers to a healthier, richer life are within reach, and that rigorous scientific research is the path to get us there. That’s why so many of our nutritional formulas are designed using specific ingredients and amounts based on scientific studies.

Bestseller No. 9

duwhot Potassium Citrate 1000mg Gummies, Potassium Supplement for Adults Women & Men, Support Leg Cramps & Muscle Health, 60 Chewables

1000mg Potassium Supplement - Take 1-2 gummies daily, fully chew the gummies before swallowing for better absorption. 2 potassium gummies contain potassium citrate 1000mg!
Natural Raspberry Flavor - These potassium chewables are pectin based, which is safe to use, with no stomach discomfort. You may love the gummy’s good taste, but the more important thing is the benefits it brings to your health!
Get Potassium Your Body Needs - Potassium is one of the most important minerals, some people can’t get enough potassium from diet. These potassium gummies for adults will make it easy.
Benefits of Potassium Supplement Gummies - When you make these gummies as part of your daily routine, these gummies may help reduce leg cramps, support muscle health, support heart health, etc.
Premium Ingredients - These gummies are made from premium ingredients and manufactured in GMP certified facility. All the gummies are pectin-based, vegan, non-GMO, Gluten Free.

Bestseller No. 10

365 by Whole Foods Market, Potassium 99Mg, 250 Tablets

365 by Whole Foods Market products give you that dance-down-the-aisles feeling, virtual aisles too! Our huge range of choices with premium ingredients at prices you can get down with makes grocery shopping so much more than tossing the basics in your cart.

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