Natural Factors Super Multi Iron Free - Ideal anyone who does not require additional iron in their diet. Natural Factors Super Multi Iron Free is a complete Multi with Calcium Citrate and Extra Lipotrophics and Minerals, but without the iron. The majority of Vitamins and Minerals are not synthesized within the body, and must be obtained through diet, or nutritional supplementation. In today's world of over- processed foods and poor dietary habits, a daily multi-vitamin and mineral supplement provides "extra insurance" that your body is getting all the vitamins and nutrients it needs for optimal health and immune system support.