The Nutrition Facts food label gives you information about which nutrients (say: nu-tree-ents) are in the food. Your body needs the right combination of nutrients, such as vitamins, to work properly and grow. The Nutrition Facts food label is printed somewhere on the outside of packaged food, and you usually don’t have to look hard to find it. Fresh food that doesn’t come prepackaged sometimes has nutrition facts, too.

Most nutrients are measured in grams, also written as g. Some nutrients are measured in milligrams, or mg. Milligrams are very tiny — there are 1,000 milligrams in 1 gram.

Other information on the label is given in percentages. Food contains fat, protein, carbohydrates, and fiber. Food also contains vitamins, such as A and C, and minerals, such as calcium and iron. Nutrition specialists know how much of each one kids and adults should get every day to have a healthy diet. The percent daily value on a food label tells you how this food can help someone meet these daily goals.