Nature Fit Easy Iron Is An Absorbable Iron Supplement. It Is Easy On Your Stomach And Will Not Cause Constipation Associated With Regular Iron Supplements (Common Side Effects Of Other Iron Supplements May Include Constipation, Diarrhea, Stomach Upset, Nausea, And Vomiting) One Capsule Daily, During Or Immediately After A Meal, Or As Directed By A Healthcare Professional.