Do we REALLY have to take our vitamins? Aside with the nutrients acquire from the foods we eat, for me we really have to take our vitamins. It depends on the condition of one's body, what particular vitamins needs. In my case, I'm taking MX Vitamin C for almost 1 year now. Vitamin C is recommended for the whole family to balance any dietary deficiency. We all know that Vitamin C helps protect us against colds and flu. That's my main reason why i take Vitamin C. For my immune system. Because before I'm frequent on having sick the doctors told me that i'm lack with vitamin c.