In a nutshell, itís wise to make sure your diet is complete with all the nutrients needed for health and wellness.
Healthy eating remains the best source of vitamins, minerals, and nutrients. A multivitamin is not a substitute for healthy food or a healthy lifestyle, but it can provide a nutritional back-up for a less-than-ideal diet. "If your diet eliminates whole food groups or you donít eat enough variety of foods -- you would benefit from a once-daily multivitamin," says Karen Ansel, spokeswoman for the American Dietetic Association.
The 2010 Dietary Guidelines for Americans identified calcium, vitamin D, dietary fiber, and potassium as nutrients of concern for inadequate intake in adults and children. All of these nutrients, except fiber, come packaged in a multivitamin. Fiber can be obtained as a separate supplement, which may be found here