THORNE - Potassium Citrate - Essential Electrolyte Supplement for Muscle Function, Heart Health, Nerve Function & Urinary Tract Health Support* - Third-Party Certified - Gluten-Free - 90 Capsules Review
Our verdict
Thorne's Potassium Citrate capsules are a gluten-free, third-party-tested option in a 90-count bottle, and with 3,000 units bought in a recent month plus a 4.7-star average, it is clearly a popular pick in this category.
Check price on AmazonBest for
Buyers who want a gluten-free potassium citrate supplement from a brand known for third-party testing.
Skip if
You are looking for the lowest-cost-per-capsule option. Thorne's pricing sits above some of the budget potassium brands.
- Form Capsules
- Count 90 Count
- Flavor Unflavored
- Type Potassium
- Diet Gluten Free
- Benefits Nutritional Support, Skeletal Support
Pros
- Gluten-free formula with third-party certification stated on the label
- High 4.7-star average across 1,400-plus reviews
- Strong recent purchase volume (3,000 units bought in a month)
- Recognized supplement brand with a track record
Cons
- Priced higher than some basic potassium tablets in the category
- 90-count bottle is smaller than some bulk options
Our scorecard
-
Owner rating4.7/5
4.7 average across 1,400 owner ratings
-
Popularity3.8/5
1,400 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
Thorne markets this as a potassium citrate supplement in capsule form, with 90 unflavored capsules per bottle at $17.00. The company positions it as gluten-free and third-party certified, which some buyers look for when choosing a supplement brand.
The stated benefits on the label point to general nutritional and skeletal support, framing it as a broad daily mineral supplement rather than a product aimed at any single use case. The 90-count size suggests a roughly three-month supply at one capsule per day.
Buyer response is strong, with 3,000 units bought in a recent month and a 4.7-star average across 1,400-plus reviews. That combination of high purchase volume and a high rating suggests the brand's reputation carries over well into this specific product.
Specifications
| Form | Capsules |
|---|---|
| Count | 90 Count |
| Flavor | Unflavored |
| Type | Potassium |
| Diet | Gluten Free |
| Benefits | Nutritional Support, Skeletal Support |
Performance notes
The capsule form and gluten-free labeling make this a fit for buyers managing dietary restrictions. At 90 capsules per bottle, it is sized for shorter-term, regular use rather than a bulk multi-month supply, and the stated nutritional and skeletal support framing keeps it positioned as a general-purpose mineral supplement.
What buyers say
With 1,400-plus reviews averaging 4.7 stars and 3,000 units bought in a recent month, this is one of the more actively purchased and well-reviewed potassium products in the lineup.
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Frequently asked questions
Is this potassium supplement gluten-free?
Yes, the label states it is gluten-free, and Thorne markets its products as third-party certified for quality.
How many capsules are in a bottle?
Each bottle contains 90 unflavored capsules, which works out to roughly three months of supply at one capsule per day.
What does the label say this supplement supports?
The manufacturer markets it for general nutritional and skeletal support. This is a supplement claim, not a medical one, so it is worth discussing your specific needs with a healthcare professional.