The elemental amount of iron in 325mg ferrous sulfate is
about 60mg. When reading labels, on OTC iron, the elemental is always listed. This is for poison control.
Most minerals have an elemental value, and a total weight value.
Here is a good monograph with detailed explanations.
Basically not all the iron in a tablet taken by mouth will be absorbed. This is true for almost all minerals. Calcium for example without D is only 20-25% absorbed per pill.
Very few people can tolerate iron on an empty stomach. Iron is best absorbed with ACID also...and the stomach secretes MORE acid with food present than on empty.
Originally Posted by barb02
Picked up the prescription for iron -- ferrous sulfate 325 mg -- one per day. I am confused because the directions say to take it on an empty stomach before or 2-3 hours after a meal with 8 ounces of water. It also says if this upsets your stomach take with crackers, bread, or small meal. I told the pharmacist I was concerned about getting sick and she suggested that I take it with a meal and if it does not bother me then to try it the next time an hour before eating. she said that my dose was a relatively low one and that some people have to take it three times per day.
I think I will wait until tomorrow to start. I am going to a movie and out to dinner later and do not want to get sick.
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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