GNC Potassium and Magnesium Aspartate 250mg Supplement, Helps Regulate Water Balance, 240 Servings Review
Our verdict
This is a combination potassium and magnesium aspartate capsule from GNC, sized for a 240-serving supply, aimed at buyers who want both minerals in a single product.
Check price on AmazonBest for
Buyers who want potassium and magnesium together in one capsule rather than buying two separate products.
Skip if
You only want potassium on its own, or you are looking for a vegan or vegetarian-labeled capsule.
- Form Capsule
- Count 240 Count
- Flavor Unflavored
- Type Gelatin
- Diet Gluten Free
- Benefits Supports Overall Health And Wellness
- Priced 100% above the category median ($17.99 across 92 tracked models)
Pros
- Combines potassium and magnesium in a single capsule
- 240-count bottle offers a long supply before reordering
- Gluten-free per the label
- 4.7-star rating reflects generally positive buyer feedback
Cons
- Gelatin capsule shell is not vegetarian or vegan
- Combined-mineral format is not a fit for buyers wanting potassium alone
- Lower recent purchase volume than several other options in this category
Our scorecard
-
Owner rating4.7/5
4.7 average across 928 owner ratings
-
Popularity3.3/5
928 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
GNC packages this product as a combined potassium and magnesium aspartate formula at 250 mg, sold in a 240-count bottle described as 240 servings. Rather than isolating one mineral, it pairs the two in each capsule, which suits buyers who would otherwise be taking separate potassium and magnesium products.
The capsule shell is listed as gelatin-based, and the label notes it is gluten-free. GNC markets the product around helping to regulate water balance, framed as general nutritional support rather than a treatment claim, and the large serving count gives a long runway before needing a refill.
Rating sits at 4.7 stars from 928 reviews, a solid track record for this combined-mineral format, though the bought-last-month figure is on the lower end of the potassium products in this lineup. Since it combines two minerals, it is especially worth discussing an appropriate amount with a healthcare professional before adding it to a routine.
Specifications
| Form | Capsule |
|---|---|
| Count | 240 Count |
| Flavor | Unflavored |
| Type | Gelatin |
| Diet | Gluten Free |
| Benefits | Supports Overall Health And Wellness |
Performance notes
Each capsule pairs potassium and magnesium aspartate at 250 mg total, housed in a gelatin capsule, with a 240-count bottle sized for 240 servings. GNC's marketing language around helping regulate water balance is standard nutritional-supplement framing rather than a medical claim.
What buyers say
A 4.7-star average from 928 reviews points to consistently favorable feedback, even though the bought-last-month count is more modest than some higher-volume potassium listings.
Similar home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters to consider
Frequently asked questions
Does this product contain magnesium as well as potassium?
Yes, each capsule combines potassium and magnesium in aspartate form at 250 mg total, rather than isolating potassium on its own.
Is the capsule vegetarian or vegan?
No, the capsule shell is listed as gelatin-based, which is not suitable for a vegetarian or vegan diet.
How many servings are in one bottle?
The bottle is labeled as containing 240 capsules sized for 240 servings, based on the maker's stated serving size.