If you don’t always eat right, a multi can be a helpful way to fill in nutrient gaps, says the CDC. True nutrient deficiencies are rare in the United States, with fewer than 10 percent of Americans affected.
According to info gathered between 2003 and 2006 by the CDC. For the most part, these deficiencies are limited to four nutrients: vitamin B6, vitamin D, iron, and — to a lesser extent — vitamin C.
Research on multivitamins has concluded that taking one won’t likely protect against chronic diseases, the NIH does note that most of those studies aren’t high quality.
That’s not nearly as reliable or effective as studies where researchers give someone a daily multi and then follow them for decades to see if they develop heart disease or cancer.
Cancer The largest and longest randomized trial on multivitamins, known as the Physician’s Health Study, looked at multivitamin use among 14,000 American male physicians age 50 or older.
Heart disease When it comes to heart health, the Physician’s Health Study was even less optimistic.
Brain health reported a reduction in cognitive decline, but the Physicians Health Study did not report the same effect.”
Bone health Even though the findings are mixed, Michels is still a fan of taking a multivitamin for strong bones.