Multivitamins and Minerals A multivitamin is a blend of nutrients which are used to bridge any gaps in nutrition, and improve general health. It can be difficult to get all of the nutrients we require from our food, due to poor dietary choices, and food being commonly grown in nutrient-depleted soil Multivitamins are helpful for those who want to look after their general health and ensure adequate nutrient intake; who are looking for an energy boost; who need immune system support; and improved fertility.