
21st Century Slow Release Iron Tablets
- Supplement Type: Magnesium
- Form: Tablet
- Diet: Gluten Free
- Allergens: Gluten Free
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A gluten free, slow release iron tablet in a 60-count bottle, best suited to buyers who already know they want gradual release over a fast-acting dose.
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ASIN: B00582WT6ICategory: Iron Supplements
Overview
21st Century's slow release iron tablet comes in a 60-count bottle, formulated gluten free for buyers tracking iron intake without a fast-release spike.
Slow release tablets are built to release their dose gradually rather than all at once, the main functional difference from a standard iron tablet. The data doesn't list a milligram strength, so buyers who need a specific iron dose should confirm the label before ordering. No vitamin C pairing, often used to aid iron absorption, is indicated here.
- Slow release delivery
- 60 tablets per bottle
- Gluten free formulation
- Tablet form
Who it's for
Fits buyers who specifically want a slow release iron tablet rather than a standard fast-release version. Not the right pick if you need a documented milligram strength before purchase, since that isn't listed here.
Pros and cons
- Slow release format
- Gluten free formulation
- No milligram strength listed
- No vitamin C pairing indicated for absorption
Performance notes
Slow release tablets are designed to break down over a longer window than standard tablets, which can reduce the single-dose spike some people experience with fast-release iron. Gluten free is the only dietary claim listed. No iron strength in milligrams or vitamin C pairing is specified in this data.
Specifications
| Brand | 21st Century |
|---|---|
| Supplement Type | Magnesium |
| Form | Tablet |
| Diet | Gluten Free |
| Allergens | Gluten Free |
| Count | 60 |
| Flavor | Unflavored |
| Benefits | Iron Support |
Frequently asked questions
How many tablets are in this iron supplement?
60 tablets.
Is it gluten free?
Yes, per the allergens and diet claims listed.
Is this a fast or slow release iron tablet?
It's formulated as a slow release tablet.