What are vitamins and why do we need them?

What are vitamins and minerals?

Vitamins and minerals are substances that are found in foods we eat. Your body needs them to work properly, so you grow and develop just like you should. When it comes to vitamins, each one has a special role to play. For example:

  • Vitamin D in milk helps your bones.
  • Vitamin A in carrots helps you see at night.
  • Vitamin C in oranges helps your body heal if you get a cut.
  • B vitamins in leafy green vegetables help your body make protein and energy.

There are two types of vitamins: fat soluble and water soluble:

When you eat foods that contain fat-soluble vitamins, the vitamins are stored in the fat tissues in your body and in your liver. They hang around in your body fat until your body needs them. Fat-soluble vitamins are happy to stay stored in your body for awhile - some stay for a few days, some for up to 6 months! Then, when it's time for them to be used, special carriers in your body take them to where they're needed. Vitamins A, D, E, and K are all fat-soluble vitamins.

Water-soluble vitamins are different. When you eat foods that have water-soluble vitamins, the vitamins don't get stored as much in your body. Instead, they travel through your bloodstream. And whatever your body doesn't use comes out when you urinate.
So these kinds of vitamins need to be replaced often because they don't like to stick around! This crowd of vitamins includes vitamin C and the big group of B vitamins - B1 (thiamin), B2 (riboflavin), niacin, B6 (pyridoxine), folic acid, B12 (cobalamine), biotin, and pantothenic acid.

Why do we need vitamins?

Your body is a powerful machine, capable of doing all sorts of things by itself. But one thing it can't do is make vitamins. That's where food comes in. Your body is able to get the vitamins it needs from the foods you eat because different foods contain different vitamins. Though some people take a daily vitamin, most don't need one if they're eating healthy foods.

Vitamin A

This vitamin plays a big part in eyesight. Vitamin A helps you see in color, too, from the brightest yellow to the darkest purple. In addition, it helps you grow properly and aids in healthy skin.

Which foods are rich in vitamin A?

  • eggs
  • milk
  • apricots
  • nectarines
  • cantaloupe
  • carrots
  • sweet potatoes
  • spinach

The B Vitamins

There's more than one B vitamin: B1, B2, B6, B12, niacin, folic acid, biotin, and pantothenic acid.
The B vitamins are important in metabolic activity - this means that they help make energy and set it free when your body needs it. So the next time you're running for the bus, thank those B vitamins. This group of vitamins is also involved in making red blood cells, which carry oxygen throughout your body. Every part of your body needs oxygen to work properly, so these B vitamins have a big job.

Which foods are rich in vitamin B?

  • whole grains, such as wheat and oats
  • fish and seafood
  • poultry and meats
  • eggs
  • dairy products, like milk and yogurt
  • leafy green vegetables
  • beans and peas
  • citrus fruits, such as oranges

Vitamin C

This vitamin is important for keeping body tissues, such as gums and muscles in good shape. C is also key if you get a cut or wound because it helps you heal. This vitamin also helps your body resist infection. This means that even though you can't always avoid getting sick, vitamin C makes it a little harder for your body to become infected with an illness.

Which foods are rich in vitamin C?

  • citrus fruits, like oranges
  • cantaloupe melon
  • blueberries
  • strawberries
  • tomatoes
  • broccoli
  • cabbage

Vitamin D

Vitamin D is the vitamin you need for strong bones! It's also great for forming strong teeth. Vitamin D even lends a hand to an important mineral - it helps your body absorb the amount of calcium it needs.

Which foods are rich in vitamin D?

  • milk and other dairy products fortified with vitamin D
  • fish
  • egg yolks

Vitamin E

Everybody needs Vitamin E. This hard-working vitamin maintains a lot of your body's tissues, like the ones in your eyes, skin, and liver. It protects your lungs from becoming damaged by polluted air. And it is important for the formation of red blood cells.

Which foods are rich in vitamin E?

  • whole grains, such as wheat and oats
  • wheat germ
  • leafy green vegetables
  • sardines
  • egg yolks
  • nuts

Vitamin K

Vitamin K is responsible for clotting. When we get a cut our blood clots to aid in the healing and prevention of infection.

Which foods are rich in vitamin K?

  • leafy green vegetables
  • liver
  • pork
  • dairy products, like milk and yogurt


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