Because nutrients that would usually be found in the cereal grains are lost during the process that turns the grains into breakfast cereal. So once the grain has been turned into breakfast cereal, a coating of nutrients is sprayed back on, in order to regain it's nutritional value.
Also, fortification makes breakfast cereals appear healthier than they sometimes actually are, so it's good for marketing.
Actually the above answer is completely ridiculous. Number one, if you look at the nutrients in the grains that are in cereal and compare them to the nutrients that the cereal are fortified with, they're completely different. These aren't nutrients that are "lost during the process" in any way shape or form, that is 100% untrue.
Secondly, while it may be "good for marketing," they are not making the cereals "appear healthier than they sometimes actually are." All of the good and bad nutrition information is listed right there on the box. It's not some sly trick by the cereal companies, if it says 25% of your daily vitamin C, then that's exactly what it has in it. If it has a lot of sugar, it says that too, right on the same panel.
I would like to clarify - by "lost in the process" I was referring to the process of refining the grains into cereal, which (for most breakfast cereals) involves removing the germ and the husk from the grain. These are the parts of the cereal grain where most of the nutrients are kept. Perhaps "lost" gave the wrong impression. Also, I appreciate you opinion on "good for marketing", and that all the ingredients and nutritional analysis are on the box label. However, a cereal company is quite likely to market a cereal on it's "high calcium content" or "as a good source of folic acid" rather than the negatives - "high in sugar" etc... Hence fortification enhances marketing opportunities.
Typically, due to sleep, the longest period of time the human body goes without food is between dinner and breakfast. Therefore, a good breakfast would involve something more hearty and nutrient-filled than a lunch or dinner meal, to make up for that. In addition, it serves to properly "set" appetite at a "correct" level for the rest of the day, by providing a good amount of things the body needs early on in the day.
This is why breakfast cereals are fortified like this; it is to make them ideal breakfast foods.
They are fortified with vitamins and minerals because most people don't eat a regular diet with enough vitamins and minerals. The extra in the cereal helps.
breakfast cereals.
milk is fortified with vitamin D
Most cereals are iron fortified. Look at the nutritional value panel on the box. It will tell you if it is iron fortified or not.
cereal grainsfiber
Vitiamins
they purify it, break it down and put little bit in each box or bag. its good for you, but only eat it like that. if you add your own, you could die.
He fortified himself with a good breakfast. They fortified the walls to stop gunfire from penetrating.
breakfast
Nut 'n Honey and Nutri-Grain are breakfast cereals from Kellogg's.
Niacin
northern brazil
French kids often have milk and cereals for breakfast, or a bowl of chololate with some bread and jam or butter.