Minerals
Ferrous Gluconate
A ferrous salt with less elemental iron per dose, which some people find easier on the stomach than sulfate. A reasonable middle-ground option when sulfate is too harsh.
Best for
A gentler salt option
Absorption
Moderate
Tolerability
Often easier to tolerate than sulfate
Typical timing
With vitamin C; away from calcium, coffee, and tea
How to take Ferrous Gluconate
A typical dose of Iron: Only when deficient; commonly 18–65 mg elemental iron. Best timing: With vitamin C; away from calcium, coffee, and tea. The form you choose mainly affects absorption and how easily it sits with your stomach, not the overall dose.