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Potassium Supplements

Shop potassium supplements by form, including citrate and gluconate products. Compare elemental potassium per serving, dosage form, serving frequency, added minerals, allergens, and overlap with electrolyte or multivitamin products.

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NOW Foods Potassium Gluconate 99 mg 100 tablets bottle front label

NOW Potassium Gluconate

NOW Foods
$9.95 - $16.95
$9.95 - $16.95
$9.95 - $16.95
$9.95
Only 1 left!

Essential Electrolyte Support for Muscle & Nerve Function NOW Foods Potassium Gluconate 99 mg provides a convenient, low-dose source of potassi...

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$9.95 - $16.95
$9.95 - $16.95
$9.95 - $16.95
$9.95
NOW Foods Potassium Citrate 99 mg 180 veg capsules electrolyte mineral supplement front label

NOW Foods Potassium Citrate

NOW Foods
$13.95 - $13.95
$13.95
$13.95 - $13.95
$13.95
in stock

Essential Mineral for Electrolyte Balance NOW Foods Potassium Citrate 99 mg provides a bioavailable form of potassium, an essential mineral that pl...

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$13.95 - $13.95
$13.95
$13.95 - $13.95
$13.95
NOW Foods Potassium Iodide 30 mg Non-GMO Project Verified dietary supplement front label 60 Tablets Save 20% Save %

NOW Foods Potassium Iodide

NOW Foods
$10.95
$10.95 - $10.95
$10.95
$8.76
$8.76 - $8.76
$8.76
in stock

Concentrated Iodine Source NOW Foods Potassium Iodide 30 mg provides a high potency source of iodine in a convenient capsule form. Iodine is an ess...

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$10.95
$10.95 - $10.95
$10.95
$8.76
$8.76 - $8.76
$8.76
Save 20% Save %

Tiger Fitness buying guide

How to Choose Potassium

Potassium is an essential mineral found widely in foods. Supplement amounts and forms vary, and a standalone product should be considered in the context of diet, electrolytes, and other supplements.

Potassium can be dangerous in excess and can interact with kidney disease, heart conditions, and common blood-pressure or fluid-balance medications. Consult a qualified healthcare professional before use if any of these apply.

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