What
is a vitamin, mineral or trace element?
Do you know your vitamins from your minerals?
Have
you heard of a trace element?
This section
explains which types of food are good sources and helps you spot a
vitamin from a mineral.
What are vitamins?
Vitamins are essential nutrients that your body needs in small amounts
to work properly. There are two types of vitamins: fat-soluble and
water-soluble.
Fat-soluble
vitamins
Fat-soluble vitamins are found mainly in fatty foods such as animal
fats (including butter and lard), vegetable oils, dairy foods, liver
and oily fish. Your
body needs these vitamins every day to work properly. However, you
dont need to eat foods containing them every day.This is because,
if your body doesn'tt need these vitamins immediately, it stores
them in your liver and fatty tissues for future use. This means the
stores can build up so they are there when you need them. But, if
you have much more than you need, fat-soluble vitamins can be harmful. These
are all fat-soluble vitamins:
|
vitamin
A
|
vitaminD
|
vitamin
E
|
vitamin
K
|
Water-soluble
vitamins
Water-soluble vitamins are not stored in the body, so you need to have
them more frequently.If you have more than you need, your body gets
rid of the extra vitamins when you urinate. Because the body doesn'tt
store water-soluble vitamins, generally these vitamins arent harmful .Water-soluble
vitamins are found in fruit, vegetables and grains. But unlike fat-soluble
vitamins, they can be destroyed by heat or by being exposed to the air.
They can also be lost in the water used for cooking.This means that
by cooking food, especially boiling, we lose lots of these vitamins
from the food we eat. The best way to keep as much of the water-soluble
vitamins as possible is to steam or grill, rather than boil. These are
all water-soluble vitamins:
| vitamin
B6 |
vitamin
B12 |
vitamin
C |
biotin |
folic
acid |
| niacin |
pantothenic
acid |
riboflavin |
thiamin |
|
What
are minerals?
Minerals are essential nutrients that your body needs in small amounts
to work properly. We need them in the form they are found in food.
Minerals
can be found in varying amounts in a variety of foods such as meat,
cereals (including cereal products such as bread), fish, milk and
dairy foods, vegetables, fruit (especially dried fruit) and nuts. Minerals
are necessary for three main reasons: building strong bones and teeth controlling
body fluids inside and outside cells turning the food we eat into energy
These are
all essential minerals:
| calcium |
iron |
magnesium |
phosphorus |
potassium |
sodium |
sulphur |
What
are trace elements?
Trace elements are also essential nutrients that your body needs to
work properly, but in much smaller amounts than vitamins and minerals.
Trace elements
are found in small amounts in a variety of foods such as meat, fish,
cereals, milk and dairy foods, vegetables and nuts.
These are
all trace elements:
| boron |
cobalt |
copper |
chromium |
fluoride |
| iodine |
manganese |
molybdenum |
selenium |
silicon |
| zinc
|
|
|
|
|
|