Why Micronutrients Matter

For Everyone

At a glance

Micronutrients, also called "vitamins and minerals," are vital to healthy development, and disease prevention. We only need small amounts of micronutrients, but getting the recommended amount is important. Learn more about six micronutrients and why they are important to our health.

Six children's blocks in different colors with the letters I, A, Z, F, and D. The letter I is repeated.

Six essential nutrients

I

Iron helps the body produce muscle cells and red blood cells that carry oxygen to the body. Iron deficiency is a leading cause of anemia, a condition that can cause fatigue, and serious health conditions. Iron also supports brain development and immune function. For children, iron supports their ability to grow, pay attention, and learn. During pregnancy, iron helps develop the brain of a child.

F

Folate is a B vitamin that helps the body make new cells. Folate is essential in the earliest days of pregnancy to help the baby’s brain and spine develop. Folic acid is the form of folate found in supplements and fortified foods.

Vitamin A helps protect our eyesight and is important for our immune system.  Vitamin A also supports cell growth, playing an important role in forming and maintaining many organs such as the heart, lungs, and eyes. Children who are deficient face an increased risk of blindness and death from infections such as measles and diarrhea.

The body needs iodine to make thyroid hormones, which control the body’s metabolism and many other important functions. Iodine is especially important for infants and women who are pregnant or breastfeeding.  This is because iodine is important for an infant’s healthy growth and cognitive development.

Zinc is important for immune function, wound healing, and the sense of taste. Children and babies need zinc to grow and develop. This mineral is also important for healthy pregnancies.

Vitamin D helps the body’s bones and immune system stay strong. It is also needed for muscle and nerve functions.

Content Source
National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP)
About This Page
Published: May 15, 2024
Updated: August 28, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: August 28, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.