Slow Fe Slow Release Iron, Tablets 30 ea (Pack of 6) is the #1 doctor recommended iron supplement for iron deficiency. Iron is an essential mineral that is needed to make hemoglobin, the part of red blood cells that delivers oxygen throughout your body to carry out many important functions. Slow Fe slow release iron tablets feature a special controlled release system that delivers the high potency iron you need, while still being gentle on your stomach. Each Slow Fe iron tablet contains 45mg of elemental iron, which is equal to 142mg of ferrous sulfate. Simply take one easy-to-swallow Slow Fe tablet daily as recommended by a doctor. Slow Fe daily vitamin supplements can be taken with or without food, but they're best absorbed on an empty stomach, either one hour before or two hours after meals.