These are not your ordinary vitamins. They contain ingredients from actual plants (veggies, fruits, mushrooms, etc,) and other nutrients, so you get more than just vitamins and minerals. You can chose with or without iron. One serving equals 3 tablets, but even if I take only 1 or 2, I still feel better than I would if I took a regular multivitamin. Very potent and absorbable. Worth the cost. The tablets are big, though, so if you have trouble swallowing large tablets, you may want to consider crushing them or trying their shake formula.