Top Potassium Supplement Brands You Should Know

Potassium is an essential mineral that plays a crucial role in maintaining overall health, especially in regulating fluid balance, muscle contractions, and nerve signals. Numerous brands offer high-quality potassium supplements, each with unique formulations to meet varying dietary needs and preferences. As choosing the right product can sometimes be challenging, we'll guide you through some of the most reputable brands known for their effectiveness and quality. For a detailed list of the best brands available and a comprehensive review of their offerings, continue reading below.

Illustration of potassium

Best brands of potassium in 2025

Nature Made

Nature Made is a highly reputable brand known for producing high-quality potassium supplements, particularly their Potassium Gluconate 550 mg tablets, which contain 90 mg of potassium per serving, supporting heart, nerve, and muscle function. These tablets are gluten-free, have no artificial flavors, colors, or preservatives, and are verified by the United States Pharmacopeia (USP). Nature Made is the #1 pharmacist-recommended vitamin and supplement brand, ensuring trust and reliability. The supplements help maintain fluid balance and are essential for the body's proper functioning, with a daily dose providing 3% of the recommended daily value of potassium. Nature Made's commitment to quality and science-backed products makes it a trusted partner in health and wellness.

NOW Foods

NOW Foods is a prominent producer of potassium supplements, known for its high-quality products that meet stringent nutritional standards. Their Potassium Chloride Powder, for example, provides 363 mg of elemental potassium per 1/8 teaspoon serving, which is 8% of the daily recommended value. This product is manufactured in a GMP facility, ensuring compliance with strict quality control measures. NOW Foods has been a trusted brand since 1968, and their products are widely available in various retail channels, including online stores and supermarkets. The company's commitment to using post-consumer recycled materials in their packaging further enhances their reputation.

Solaray

Solaray is renowned as one of the best producers of potassium supplements, offering a high-quality Potassium 99mg Amino Acid Complex that supports healthy fluid and electrolyte balance, cardiovascular function, and muscle, skeletal, and nerve health. This formula is bonded to amino acids for better absorption and utilization, and it is lab-verified for purity and potency. With a commitment to radiant health and well-being, Solaray's potassium supplement is designed to be bioavailable and effective. The product contains 99mg of potassium per serving, which is a significant contribution to the daily recommended intake of 3,400 mg for men and 2,600 mg for women over 51 years old. Solaray's dedication to quality ensures that their products meet stringent standards.

Solgar

Solgar is renowned as one of the best producers of potassium supplements, offering high-quality products that support nerve and muscle function, promote electrolyte balance, and maintain normal blood pressure. Their potassium supplements, such as Solgar Potassium and Solgar Potassium Amino Acid Complex, provide 99 mg of potassium per serving, which is approximately 3% of the daily value. These supplements are non-GMO, gluten, wheat, and dairy free, making them suitable for vegans and those with dietary restrictions. Solgar's commitment to purity and quality is evident in their use of vegetable capsules and amber glass bottles. Their products are widely available and trusted for their effectiveness in promoting overall wellbeing.

Jarrow Formulas

Jarrow Formulas is a renowned brand in the dietary supplement industry, particularly noted for its high-quality potassium supplements. Founded on a commitment to scientific research and quality assurance, Jarrow Formulas ensures that its products, including those containing potassium, adhere to Current Good Manufacturing Practices (cGMP). Their supplements often include potassium in the form of potassium citrate, which is part of a comprehensive formula that supports overall health. For instance, their BoneUp(r) capsules contain potassium citrate, contributing to a well-rounded nutritional profile. With over 50 years of customer trust, Jarrow Formulas stands out for its science-backed products.

Pure Encapsulations

Pure Encapsulations is a renowned brand for producing high-quality potassium supplements, particularly their Potassium Citrate product, which is free from common allergens like gluten, wheat, and dairy, and is vegan and vegetarian-friendly. This supplement is designed to promote healthy pH levels, support cardiovascular functions, and activate enzyme reactions in the body. With over 30 years of research and development, Pure Encapsulations ensures product purity and potency through third-party testing and rigorous quality control measures. Their manufacturing plant in Sudbury, Massachusetts, is NSF-GMP registered and exceeds US Pharmacopeia standards. The brand sources premium raw materials from trusted suppliers worldwide, ensuring the highest quality in every supplement.

Thorne Research

Thorne Research is renowned for producing high-quality potassium supplements, particularly their Potassium Citrate formula, which is designed to promote cardiovascular health, support kidney and urinary tract function, and enhance skeletal muscle performance. This highly absorbable form of potassium helps maintain a healthy heart, supports muscle contractility, and aids in energy production and nerve impulse transmission. Each serving of Thorne Research Potassium Citrate contains 99 mg of potassium, and the product is free from gluten, soy, and dairy, making it suitable for a wide range of dietary needs. The supplement is available in a 90-capsule bottle, with a suggested use of one to three capsules per day. Thorne Research ensures the production of this supplement without preservatives, magnesium stearate, or other lubricants and diluents. For more details about this product, visit their official product page.

Garden of Life

Garden of Life is renowned for its high-quality supplements, but it is not specifically highlighted as a top producer of potassium. However, their products, such as the Vitamin Code Liquid Multivitamin, are made with RAW whole food vitamins and minerals, including 46 superfoods and 34 powdered fruits, veggies, and sprouts, which can contribute to overall nutritional health. Garden of Life's supplements are produced without high heat, retaining natural cofactors, and are free from artificial flavors, sweeteners, and preservatives. Their organic and Non-GMO verified formulas ensure wholesome nutrition. While the brand excels in whole food-based supplements, specific potassium content is not a primary focus.

Doctor's Best

For those seeking high-quality potassium supplements, brands like NOW Supplements, Nutricost, and CVS Health are highly recommended. NOW Supplements offers a vegan potassium citrate supplement with 99 mg per capsule, providing 10% of the recommended daily intake when taken five times a day. Nutricost provides a non-GMO, gluten-free potassium citrate supplement with 500 capsules per bottle, ideal for long-term use. CVS Health's potassium gluconate supplement is another highly absorbable form, with each caplet containing 99 mg of potassium, which is 2% of the daily recommended intake.

Life Extension

Life Extension is a renowned brand that offers a potent dual-action formula combining potassium and extended-release magnesium, designed to support healthy blood pressure already within the normal range. This supplement promotes cardiovascular health by relaxing smooth muscles in blood vessels and encouraging healthy vasodilation, with magnesium supporting over 300 biological reactions in the body. The formula includes both magnesium oxide and magnesium citrate for immediate and prolonged uptake, ensuring maximum health benefits. Given that most people do not get enough magnesium and potassium through their diets, Life Extension's supplement fills this nutritional gap effectively. With 40 years of research dedicated to scientifically-validated formulations, Life Extension stands out as a trusted producer of high-quality supplements. For more details, visit their official product page.