Nature Made Iron 65 mg 365 Tabs for Iron Deficiency Gluten Free ???????? Import. Nature Made Iron 65 mg (325 mg Ferrous Sulfate)* Tablets are for those with Iron deficiency and are vital for red blood cell formation. This Iron supplement also supports healthy cognitive function. Sourced from high-quality ingredients, this gluten free 65 mg Iron supplement has no synthetic dyes and no artificial flavors. These Nature Made Iron 65 mg tablets provide Iron for premenopausal women that need this essential nutrient during their reproductive years, and help support adequate Iron in the body. 1 in 10 US adult premenopausal women (ages 15-49) are deficient in Iron.