A Typical Multivitamins Content

The majority of one-a-day multivitamins usually contain vitamin B-complex, along with variable levels of vitamins A and D, depending on the type of multivitamin. As the body does not require as many minerals as vitamins, most multivitamins include small amounts of essential minerals including copper, zinc, and iron.

Nutrients that typically make up a complete multivitamin include:

Vitamin A
Vitamin B–complex – including thiamine, riboflavin, niacin and/or niacinamide, vitamin B6, folate, vitamin B12, pantothenic acid, and biotin.
Vitamin C
Vitamin D
Vitamin E
Vitamin K
Calcium
Magnesium
Zinc
Iodine
Selenium
Copper
Manganese
Chromium
Molybdenum

While iron may be included in a good multivitamin supplement, it is not necessary. Phosphorus is also another essential mineral required by the body, but so much is consumed in the human diet that additional amounts, via supplements, are not needed.