VitaminDB Data · October 2026
The real cost of Ferrous Sulfate, per dose
For the exact same amount of Ferrous Sulfate — the same mg of active ingredient — the priciest products cost a 4.3× premium over the cheapest. We measured it across 22 tracked products, normalized to cost per mg.
Is the premium brand worth it?
On price, usually not. Two bottles of Ferrous Sulfate can carry the identical active dose at wildly different prices — the spread between the cheap and the premium end is 4.3× per mg, from a low around $0.0005 to a high near $0.0020. A higher sticker price is not a reliable signal of a better product; most of that gap is branding and margin, not more Ferrous Sulfate. Pay up only for a verifiable difference — third-party testing, or a specific better-absorbed form — never for the packaging.
Right now the best value in our catalog is Ferrous Sulfate 325 mg Tablets, 1000 Count at $0.01 per serving — against a catalog median of $0.051/serving.
How we calculated it
Cost per active unit = price ÷ (servings per container × dose per serving), measured in Ferrous Sulfate’s dominant dose unit (mg) so we only ever compare like with like — mg of Ferrous Sulfate against mg of Ferrous Sulfate.
Spread = the 90th-percentile cost per mg ÷ the 10th-percentile. Using the 10th/90th percentiles (not the absolute min/max) deliberately excludes one-off outliers and mislabeled listings. Based on 22 active Ferrous Sulfate products from our live Amazon US catalog, recomputed hourly. This is a value comparison, not medical or dosing advice.
Part of the catalog-wide supplement price-spread study (median 7.3× across 75 nutrients).
Free to cite
Quote these figures with a link back to this page. Key data point (as of October 2026): for the same dose of Ferrous Sulfate, the priciest products cost 4.3× more than the cheapest per mg, across 22 tracked products.
Ferrous Sulfate cost FAQ
- How much does Ferrous Sulfate vary in price for the same dose?
- For the same amount of Ferrous Sulfate (per mg), the most expensive products cost about 4.3× more than the cheapest — based on 22 tracked products, comparing the 90th vs 10th percentile cost per mg. The median is $0.0008 per mg.
- Is the premium Ferrous Sulfate brand worth it?
- On price alone, usually not: the priciest options deliver the same mg of Ferrous Sulfate for up to 4.3× the cost. A higher price is not a reliable quality signal — pay more only for a verifiable difference such as third-party testing or a specific better-absorbed form, not for packaging.
- What is the cheapest Ferrous Sulfate per dose right now?
- Ferrous Sulfate 325 mg Tablets, 1000 Count at $0.01 per serving is the lowest cost-per-dose Ferrous Sulfate in our catalog. See the full ranking on the Best Ferrous Sulfate page.