Amazon Basics Potassium Heart Health Capsules
- Potassium
- Potassium
- 250
- Better rated than 90%
A no frills, standard dose potassium capsule in a large 250 count bottle, a reasonable pick if you just need plain potassium at the usual OTC strength.
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How it ranks among the 93 potassium we track
4.8★ across 218 Amazon ratings, Bayesian-smoothed toward the category average.
218 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 93 potassium we track - how the scorecard works · full potassium data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Amazon Basics offers potassium capsules dosed at 99 mg each, the standard strength for over the counter potassium supplements in the US, packaged 250 to a bottle for extended daily use.
99 mg is the common ceiling regulators allow for OTC potassium products, so this listing sits at the typical dose rather than an unusually high or low one. The 250 count size means it lasts roughly eight months at one capsule daily, longer than most single nutrient bottles on the shelf.
- 99 mg potassium per capsule
- 250 capsules per bottle
- Standard OTC dosage strength
- Amazon Basics brand
Who it's for
Good for someone who wants a plain, single ingredient potassium capsule at the standard 99 mg dose and prefers a large count to avoid reordering often. Less useful for anyone told by a doctor to take a higher potassium dose, since 99 mg per capsule is the regulatory maximum for this category.
Strengths and trade-offs
Drawn from this product's published specifications.
- Large 250 count supply
- Standard 99 mg OTC dose
- Amazon Basics house brand pricing
- Fixed 99 mg dose, not adjustable
- No flavor or coating detail given
- Single ingredient, no added nutrients
Performance notes
At 250 capsules and one per day, this bottle covers around eight months before needing a refill, which reduces how often it needs reordering compared to smaller 60 or 90 count bottles. With 1,000 monthly purchases, it is a high volume, repeat buy listing.
Specifications
| Brand | Amazon |
|---|---|
| Model | PD-M8T8OQRWNG |
| Supplement Type | Potassium |
| Count | 250 |
How it compares
This product against the closest alternatives we track in potassium.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Amazon Basics Potassium Heart Health CapsulesThis product | 4.8 / 5 | 218 | 4.1 / 5 |
| NOW FOODS Potassium CitrateNow | 4.7 / 5 | 22,400 | 4.6 / 5 |
| Nature Made Potassium Gluconate 550 mgNATURE | 4.7 / 5 | 15,900 | 4.6 / 5 |
| Nutricost Potassium Citrate 99mgNutricost | 4.7 / 5 | 14,800 | 4.6 / 5 |
| NaturalSlim Natural Potassium Citrate Gluconate 99 mgNaturalSlim | 4.8 / 5 | 13,600 | 4.7 / 5 |
Similar potassium from other brands
Questions about the Amazon PD-M8T8OQRWNG
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much potassium is in each Amazon Basics capsule?
99 mg per capsule.
How long does the 250 count bottle last at one capsule a day?
About eight months.
Does this potassium supplement include other nutrients?
The listing shows potassium as the supplement type with no other nutrients specified.