Nutrients from food, not supplements, linked to lower risks of death, cancer. Researchers have found that adequate intake of certain nutrients from foods -- but not supplements -- is linked to a reduction in all-cause mortality. There was no association between dietary supplement use and a lower risk of death. Source 4q.
Of course if you intake the right foods without the supplements you already have everything you need - unless you have some sort of born condition. Like anything else, even though you may have the vitamins and minerals if it's done in excess it will be bad or lethal.