Best Potassium Supplements (Updated March 2026)

Potassium supplements help support electrolyte balance, muscle function and overall wellness. BuyersReport's experts have broken down the features & benefits of the top-rated, most effective options so you can make an informed choice – our comprehensive review can help you find the best potassium supplement for maintaining healthy potassium levels.

1
Best Overall
Potassium Citrate - Electrolyte Balance & Muscle Support Nutricost
  • Supports healthy electrolyte balance, muscle function & hydration
  • Helps maintain proper nerve signaling & overall fluid balance
  • Vegetarian formula in a small, easy to take one-capsule daily serving
  • Delivers 99mg elemental potassium per capsule, 500 capsule supply
  • Non-GMO, gluten & soy free, 3rd party tested & GMP compliant
9% Off CHECK PRICE Amazon

Picked by 265 people today

2
Electrolytes Powder Hydration with Potassium Key Nutrients
  • Supports hydration, energy production & performance with potassium
  • Helps replenish sodium, magnesium & essential minerals lost in sweat
  • Formulated with potassium, 6 electrolytes & 10 vitamins for balance
  • Zero sugar, zero calories & refreshing lemonade flavor for daily use
  • Made in the USA with no fillers, artificial colors or preservatives
CHECK PRICE Amazon

Picked by 236 people today

3
K+2 Potassium - Electrolyte & Blood Pressure Support Designs for Health
  • Supports overall electrolyte balance & healthy blood pressure levels
  • Helps maintain proper muscle, nerve & cardiovascular function daily
  • Dual-form potassium with bicarbonate & glycinate for better tolerance
  • Delivers 300 mg potassium per serving in convenient daily capsules
  • Vegan, non-GMO formula, purity & potency-tested & made in the USA
CHECK PRICE Amazon

Picked by 202 people today

4
Potassium Chloride - Hydration & Mineral Balance Micro Ingredients
  • Supports electrolyte balance, hydration & cardiovascular function
  • Helps maintain mineral levels for muscle, joint & immune support
  • Easily mixes into shake, juice, or smoothies for hydrating benefits
  • Premium unflavored formula dissolves easily, 1428 servings
  • Non-GMO, free of gluten, dairy, soy, tree nuts, preservatives & filler
CHECK PRICE Amazon

Picked by 263 people today

Shop All Potassium Supplements

Our Top Rated Potassium Supplement

1
Best Overall
Potassium Citrate - Electrolyte Balance & Muscle Support Nutricost
  • Supports healthy electrolyte balance, muscle function & hydration
  • Helps maintain proper nerve signaling & overall fluid balance
  • Vegetarian formula in a small, easy to take one-capsule daily serving
  • Delivers 99mg elemental potassium per capsule, 500 capsule supply
  • Non-GMO, gluten & soy free, 3rd party tested & GMP compliant
9% Off CHECK PRICE Amazon

Picked by 265 people today