Did you ever notice how TV commercials for breakfast cereal always mention vitamins
and minerals? But when you think of minerals, food isn't the first
thing that comes to mind. Aren't minerals something you find in the earth, like iron
and quartz?
Well, yes, but small amounts of some minerals are also in foods — for instance,
red meat, such as beef, is a good source of iron.
Just like vitamins,
minerals help your body grow, develop, and stay healthy. The body uses minerals to
perform many different functions — from building strong bones
to transmitting nerve
impulses. Some minerals are even used to make hormones or maintain a normal heartbeat.
Macro and Trace
The two kinds of minerals are: macrominerals and trace
minerals. Macro means "large" in Greek (and your body needs larger
amounts of macrominerals than trace minerals). The macromineral group is made up of
calcium, phosphorus, magnesium, sodium, potassium, chloride, and sulfur.
A trace of something means that there is only a little of it. So even though your
body needs trace minerals, it needs just a tiny bit of each one. Trace minerals includes
iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
Let's take a closer look at some of the minerals you get from food.
Calcium
Calcium is the top macromineral when it comes to your bones. This mineral helps
build strong bones, so you can do everything from standing up straight to scoring
that winning goal. It also helps build strong, healthy teeth,
for chomping on tasty food.
Which foods are rich in calcium?
- dairy products, such as milk, cheese, and yogurt
- canned salmon and sardines with bones
- leafy green vegetables, such as broccoli
- calcium-fortified foods — from orange juice to cereals and crackers