Nutrition labels help students compare foods and make informed choices about what they eat and drink. This cheat sheet explains how to read serving size, calories, nutrients, percent Daily Value, and ingredient lists. Students need these skills to understand portions, spot hidden sugars, and choose foods that support energy, growth, and health.
It is useful for grocery shopping, meal planning, and evaluating snacks.
Key Facts
- Serving size tells you the amount of food the nutrition facts are based on, so all numbers on the label apply to that serving.
- Servings per container tells you how many servings are in the whole package, and total amount eaten = amount per serving x number of servings eaten.
- Total calories eaten = calories per serving x number of servings eaten.
- Percent Daily Value, or %DV, shows how much one serving contributes to a daily diet, and 5% DV or less is low while 20% DV or more is high.
- Choose foods higher in fiber, vitamin D, calcium, iron, and potassium because these nutrients support digestion, bones, blood, and body function.
- Limit foods high in saturated fat, sodium, and added sugars because too much can increase health risks over time.
- Ingredients are listed from greatest amount to least amount by weight, so the first few ingredients tell you what the food contains most.
- Added sugars are sugars put into food during processing, and total sugars = natural sugars + added sugars.
Vocabulary
- Serving Size
- The amount of food used as the basis for all nutrition numbers on the label.
- Calories
- A measure of the energy your body gets from one serving of food or drink.
- Percent Daily Value
- The percentage of a recommended daily nutrient amount that one serving provides.
- Added Sugars
- Sugars added during processing or preparation rather than sugars naturally found in foods like fruit or milk.
- Sodium
- A mineral found in salt that the body needs in small amounts but should not be eaten in excess.
- Ingredient List
- A list of everything in a food, ordered from the largest amount by weight to the smallest amount.
Common Mistakes to Avoid
- Ignoring serving size is wrong because the calories and nutrients may only describe a small part of the package, not the whole package.
- Thinking %DV means percent of the package is wrong because %DV compares one serving to a full day of recommended intake.
- Only looking at calories is wrong because a food can be low in calories but also low in important nutrients like fiber, calcium, or iron.
- Assuming all sugars are added sugars is wrong because total sugars can include natural sugars from fruit, milk, or other whole foods.
- Skipping the ingredient list is wrong because it can show whether a food is mostly whole grains, sugars, oils, or other main ingredients.
Practice Questions
- 1 A granola bar has 140 calories per serving and the package contains 2 servings. If you eat the whole package, how many calories did you eat?
- 2 A soup label lists 30% DV sodium per serving. If you eat 2 servings, what percent Daily Value of sodium did you eat?
- 3 A cereal has 4 grams of fiber per serving and 8% DV added sugars. Is fiber considered low or high if the label shows 14% DV fiber?
- 4 Two snacks have the same calories, but one has more fiber and less added sugar. Explain which snack is usually the better everyday choice and why.