US
MAJOR

MAJOR Ferosul Ferrous Sulfate 325 mg Tablets 3 Pack

  • Supplement Type: Iron
  • Form: Tablet
  • Diet: Gluten Free
  • Allergens: Corn-Free, Dairy Free, Gluten Free, Lactose Free, Nut Free

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A clinical strength ferrous sulfate tablet with a broad allergen free profile, suited to iron repletion under guidance rather than casual daily use.

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ASIN: B00IA6NBMUCategory: Iron Supplements

Overview

Each tablet delivers 325 mg of ferrous sulfate, equal to 65 mg of elemental iron, sold as three bottles of 100 for a 300 tablet total. It's an unflavored, gluten free iron supplement aimed at both men and women.

Ferrous sulfate is one of the more commonly used iron forms, and 65 mg of elemental iron per tablet is a clinical strength dose well above typical multivitamin iron levels, so it's worth checking with a doctor before adding it on top of an existing iron intake. The free from list, corn, dairy, gluten, lactose and nut, covers most common allergen concerns.

  • 325 mg ferrous sulfate, 65 mg elemental iron
  • 300 tablets (3 x 100)
  • Gluten free, dairy free, nut free
  • Unflavored

Who it's for

Fits people who need a higher dose iron supplement, often on medical advice for diagnosed low iron, and who need a formula free of common allergens. Not intended as a low dose, everyday multivitamin level iron source.

Pros and cons

Pros
  • 65 mg elemental iron per tablet, a clinical strength dose
  • Free of corn, dairy, gluten, lactose and nuts
  • 300 tablets across three bottles
Cons
  • Dose is high enough that it should be checked against existing iron intake or medication

Performance notes

Ferrous sulfate is the iron compound used, and at 65 mg of elemental iron per tablet this sits at a dose typically used for treating diagnosed iron deficiency rather than general maintenance. The three bottle, 300 tablet pack is built for sustained use.

Specifications

BrandMAJOR
Supplement TypeIron
FormTablet
DietGluten Free
AllergensCorn-Free, Dairy Free, Gluten Free, Lactose Free, Nut Free
Count300
FlavorUnflavored
BenefitsIron supplement

Frequently asked questions

How much elemental iron is in each MAJOR Ferosul tablet?

Each 325 mg ferrous sulfate tablet provides 65 mg of elemental iron.

How many tablets come in this pack?

It ships as three bottles of 100 tablets each, 300 tablets total.

Is this iron supplement free of common allergens?

Yes, it's listed as corn free, dairy free, gluten free, lactose free and nut free.