I think you should look into it some more and do some research online before you supplement.
I have been researching vitamins and minerals for several years. There is no doubt that vitamin and mineral deficiencies are at the core of many symptoms of illness and do indeed help people to feel better in some instances.
But, in a healthy individual without illness symptoms, who knows the need for the particular supplement. In many cases overdosing on them can have the same negative effects of deficicency. For an example, both deficiency in Calcium, and hypercalcemia, can cause Arthritis symptoms.
The interesting thing about vitamins is the way they interact and play on each other. Over cunsumption of one, can cause a problem with the other. This one needs that one for uptake. still others (calcium/magnesium) need eachother "in balance" to do what they are suppose to be doing for the body. There is only one way we can ensure this symphony is taking place, and that is by getting your requirements through (good) food. I am amazed at how the Lord puts the perfect complement of vitamins into each food so that balance and uptake is assured. Poor food and chemicals in drinks can leach out nutrients while delivering high levels of metals. (cellular bacteria loves heavy metals)
Scientists have written medical papers that excess folic acid, b12, vit D, and iron all feed bacteria. If the person is infected with the particular bacteria that feeds on any of these , disease follows. Now, keep in mind that many or most produced, Processed and milled foods have these added to them at high levels, and are also contaminated with metals, carcinogens, and fungal spores.
Iron has another issue. Unlike vit c or magnesium, in which the body can flush the extra out, Iron does NOT flush out. It accumulates in children and is highly dangerous, even fatal in some circumstances. You should never supplement Iron without doctor's approval, and even then, the doctor should be testing Iron levels before he gives a supplement! There is absolutely no need for excess Iron in the body. Baby formulas, infant cereals and poly visol drops with Iron, are in my opinion, not only un needed but contribute to disease. So many children have constipation due to Iron buildup from supps/iron enriched foods and low magnesium due to excessive calcium intake.(calcium is another one that they are adding to a lot of foods.Many of us already get so much calcium from our high milk product consumption that our magnesium levels are deficient).
Iodine is one supplement that I do feel is needed for health that our American diet is deficient in, because we dont eat the sea vegetables and fish that contain it. Look up iodine deficiency online.
Zinc- I will touch on this one since it was mentioned. Zinc elimination from the body is slow. Long periods of high zinc can cause zinc buildup and can cause anemia. It reduces ability to absorb Iron and antibiotics, and excessive amounts blocks copper assimilation.
If it were me, I would do as another mom suggested and choose the BEST most fresh food in it's natural form.(organics for produce). And, because of what I know about Soy, I would stay miles away from it. Avoid corn syrup, which is in everything processed. Then you should have no need to supplement unless there were symptoms of imbalance and/or I felt they might have a deficiency or a diet deficient in a certain need. Keep in mind that any medication a child takes: asprin, antibiotics, and heaven forbid Mylanta, Mirilax, and SSRI's (and most prescription drugs)cause malabsorption problems with nutrients and they indeed CAN become deficient under these circumstances.
My opinions are based on the medical research I have read. I advise you to use this information as a springboard to do your own research, and make your own decisions. Do not subsitiute my email for a doctor's advice.