The answer is simple. Whether you need extra multivitamins depends on whether your diet is balanced. It is certainly a good choice to supplement multivitamins when necessary.

Fitness does increase the body's demand for certain vitamins and minerals, so the RDA of athletes is often higher than that of ordinary people.

In a variety of vitamin supplements, there are generally a certain amount of vitamins and minerals. In order to know whether and how much you need to supplement, you need to know the function of each vitamin and mineral and the recommended daily intake (RDA).