A Nutrition Facts label makes more sense once you know what its numbers describe. Start at the top, check whether the figures refer to a serving or a package, and compare products on an equivalent basis. You do not need to turn every food into a score.
Start with serving information
The first question is not whether a nutrient number looks large or small. It is what amount of food that number describes. Look for serving size and servings per container at the top of the panel.
The FDA explains that serving sizes reflect amounts people typically consume; they are not instructions about how much you should eat. A package can contain more than one serving. Certain labels include two columns, one for a serving and another for the full container.
Write down the unit as displayed: a cup, piece or another household measure, often alongside a metric amount. Do not assume that the stated nutrients describe everything in the package.
Compare the same basis
When comparing two products, check serving amount, unit and column heading on both labels. The same nutrient name does not make unlike serving amounts directly comparable.
For a simple comparison, choose an equivalent amount or note that the amounts differ. If you have not made a valid conversion, leave the comparison unresolved rather than declaring one product better based on unequal portions.
Serving size describes the amount used for the Nutrition Facts panel. Your portion is how much you actually choose to eat. These concepts are related but not identical. This guide is for reading the label, not deciding the right portion for a particular person.
Understand % Daily Value
The % Daily Value (%DV) describes how much a nutrient in one stated serving contributes to the reference Daily Value used for labeling. It is not a measurement of your individual dietary needs.
The FDA’s general guide describes 5% DV or less as low and 20% DV or more as high for a nutrient per serving. That describes a nutrient in that serving, not a final good-or-bad verdict on the food.
Some nutrients have no %DV displayed. A missing percentage does not, by itself, mean the nutrient is absent. Read the actual amount and the label context.
Read total sugars and added sugars correctly
On US Nutrition Facts labels, added sugars are included in total sugars. Do not add the two lines together. The FDA guide to using the label explains the relationship.
The panel also lists nutrients such as dietary fiber, sodium and total fat. When comparing a specific nutrient, stay with the same question and equivalent amount; do not infer that a single line determines the overall value of a food.
This article does not provide personal nutrient targets. It does not determine whether a packaged food is suitable for a medical condition or safe for someone with an allergy. Nutrition Facts are not a substitute for checking relevant ingredient and allergen information.
Use a Nutrition Facts comparison worksheet
Choose two real packages, or begin with a single label. Copy the information as printed rather than estimating missing values.
| Label field | Product A | Product B |
|---|---|---|
| Product and label source | ______ | ______ |
| Serving size and units | ______ | ______ |
| Servings per container | ______ | ______ |
| Per-serving or per-package column | ______ | ______ |
| Nutrient being compared | ______ | ______ |
| Nutrient amount and units | ______ | ______ |
| %DV, if shown | ______ | ______ |
| Are the amounts equivalent? | ______ | ______ |
| What is missing or unverified? | ______ | ______ |
| What does this comparison not establish? | ______ | ______ |
If the serving amounts differ, explicitly mark the comparison as not yet equivalent. A blank is more accurate than an invented conversion.
Return to ordinary meal planning
Once you understand what the label says, you can make a regular household choice: what would you like to cook, and what do you need to buy? Build My Meals helps organize familiar meal ideas and shopping items. It does not read product labels, compute %DV, assess medical suitability or prescribe a diet.
For a simpler planning process, see meal planning when you hate cooking. Before shopping, check what is already in your pantry. When comparing package prices rather than nutrient values, use the grocery unit-price guide.
Frequently asked questions
Is serving size the amount I should eat?
No. Serving size describes a labeled reference amount based on what people typically consume, not a recommendation for you.
Should I add total sugars and added sugars?
No. Added sugars are already part of total sugars.
Can I compare two products with different serving sizes?
First put them on an equivalent basis or record that you have not done so. Comparing the printed numbers without that step can be misleading.
Does %DV tell me what my body needs?
No. It is a labeling reference, not an individualized dietary assessment.