Nature Made 550 mg Potassium Gluconate Tablets Review

Nature Made 550 mg Potassium Gluconate Tablets are listed on this page as a discontinued product that is no longer available for purchase. Each tablet of Potassium Gluconate 550 mg contains 90 mg of potassium, which the page says helps control the activity of the heart, muscle and nerve function. The product is presented as a supplement that helps support heart function, and the listed key benefit is heart health. The page describes the product as sourced from high quality ingredients and notes that potassium can also be found in bananas. The product carries a United States Pharmacopeia (USP) Verified mark, and the page explains that USP has tested and verified the ingredients, potency and manufacturing process. The label information on the page states that the product is gluten free, has no artificial flavors, has no color added and has no preservatives. The product is listed as Item #1358 and is shown as a tablet with a strength of 550 mg. The suggested use is for adults to take one tablet daily with water and a meal. The page states that many medications may interfere with potassium levels, so customers taking medication are advised to check with a physician. It also says that people who are pregnant, nursing, taking medication, have impaired kidney function or have a history of gastrointestinal distress should consult a physician before use. The frequently asked questions explain that the 550 mg figure refers to the amount of potassium gluconate per tablet, while the 90 mg figure is the elemental potassium that provides the product benefit. The page states that the supplement provides 2 percent of the Daily Value, and that customers should not take more than the label directs unless a healthcare provider has been consulted. The page also explains that potassium is most easily obtained through diet, with bananas, potatoes, citrus, tomatoes, prunes and spinach given as high potassium foods. Subscribe and save options are described, with a stated discount and free shipping for subscribers. The page includes a statement that these statements have not been evaluated by the Food and Drug Administration and that the product is not intended to diagnose, treat, cure or prevent any disease.

Product Focus: Thyroid HealthAlso covers:HormonesMuscles
Tier ⓘ
Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions
Cost per month
$2

Study, Trial or Testing Result Summary

MembersHuman studies

This product gives 90 milligrams of potassium from potassium gluconate. It contains iodine and bromide. …

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Review Totals and Summary

Members2,582 reviews
2,582 reviews · Walmart 1,198 · Hy-vee 878 · Walgreens 318 · CVS 136 · Nature Made website 42 · Kroger 10

Nature Made 550 mg Potassium Gluconate Tablets have received about 1386 ratings across various stores, with a leaning as of ratings are 4 or 5 stars. Customers generally find these tablets for specific issues, though there are regarding the actual potassium dosage. **What it did for buyers:** customers report that these tablets are effective in alleviating muscle cramps, particularly in the legs and toes. …

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Biohacker Summary

MembersWhat our biohacker panel says

Potassium is the only ingredient here, and ten panelists spoke about it. Four getting , to balance out sodium and support blood pressure, and one of them also suggests during a fast and a form called potassium citrate for those who tolerate it. …

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RAL Summary

MembersThe tier and why

The tier rests on trials of potassium iodide, potassium iodate and potassium bromide, where the iodine or bromide did the , while this product is potassium gluconate, and potassium alone did change thyroid hormones. …

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More Details

MembersBody systems · Combine with · Possible side effects

Body systems: Endocrine system, Muscular system. Combine with and possible side are for members.

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Supplement Facts

Potassium 90 mg
Supplement Facts
Serving Size 1 Tablet
Amount Per Serving% Daily Value
Potassium (from 550 mg Potassium Gluconate)90 mg2 %

Other ingredients: Cellulose Gel, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate, Silicon Dioxide.

Directions: Adults, take 1 tablet daily with water and a meal.

Label source: Naturemade · Report a label change

Where to Buy

Nature Made · Walmart · CVS
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Our articles on this subject

Graded October 28, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.