How to Read a Nutrition Label in 60 Seconds
A quick order for reading any US food label: serving size, percent daily value, added sugars, then the ingredients, with worked examples.
To read a nutrition label quickly, go in this order: check the serving size against what you really eat, scan the percent daily value for saturated fat, sodium and added sugars, look for fiber and protein, and finish with the first few ingredients. That order catches most of what matters. A container of fruit yogurt can hold 20.4 g of added sugar, 41% of the daily value, and one tablespoon of soy sauce holds 1,005 mg of sodium, 44% of the daily value. Those are the numbers worth a few seconds in the aisle.
Why start with the serving size?
Every other line on the label depends on it. The label tells you what is in one serving, and one serving may be less than you pour, or less than the whole package. The figures below come from USDA data through our food pages, and they show how far the same food moves when the portion changes.
| Food | Smaller portion | Larger portion |
|---|---|---|
| Frosted corn flakes | 3/4 cup (31 g): 121 kcal, 11.5 g added sugar | 1.5 cups (62 g): 241 kcal, 22.9 g added sugar |
| Granola | 1/4 cup (30 g): 147 kcal, 3.6 g added sugar | 1/2 cup (61 g): 298 kcal, 7.3 g added sugar |
| Microwave popcorn | 1 cup popped (8 g): 43 kcal, 1.2 g sat fat | 1 bag (87 g): 465 kcal, 12.7 g sat fat |
| Cola | 1 can (355 ml): 155 kcal, 38.3 g added sugar | 1 bottle (500 ml): 218 kcal, 53.9 g added sugar |
Microwave popcorn is the clearest case. One cup looks modest, and a whole bag gives 64% of the daily value for saturated fat and 29% for sodium. If you usually eat the bag, multiply the label by the servings per container before you judge it. Bowls of cereal and granola drift the same way, so weighing your usual pour once is a useful experiment.
What does percent daily value mean?
The percent daily value (%DV) shows how much of a reference amount one serving supplies, based on a 2,000 kcal diet. It saves you from remembering grams and lets you compare lines that use different units. Your own needs may be higher or lower, so treat it as a yardstick. These are the reference amounts behind the lines that matter most, with an example from our data.
| Label line | Daily value | Example per portion | %DV |
|---|---|---|---|
| Saturated fat | 20 g | Chocolate hazelnut spread, 2 tbsp: 10.5 g | 53% |
| Sodium | 2,300 mg | Salami, 1 oz: 487 mg | 21% |
| Added sugars | 50 g | Flavored instant oatmeal, 1 packet: 12.5 g | 25% |
| Fiber | 28 g | Oats, 1/2 cup dry: 4.2 g | 15% |
| Protein | 50 g | Greek yogurt, 1 container: 17.3 g | 35% |
For saturated fat, sodium and added sugars, a lower percentage leaves more room for the rest of the day. For fiber, a higher percentage helps. Protein often appears in grams only, with no percentage printed, so divide by 50 if you want the figure.
Small servings can add up as well. Two tablespoons of ketchup give 308 mg of sodium, 13% of the daily value, on top of whatever they are served with. Three slices of bacon give 404 mg, or 18%.
What is the difference between total sugars and added sugars?
Total sugars counts everything, including the natural sugar in milk and fruit. Added sugars counts what was put in during processing, and it is the line with a daily value. The two can tell very different stories.
| Food, portion | Total sugars | Added sugars |
|---|---|---|
| Greek yogurt, plain, 170 g | 5.5 g | 0 g |
| Fruit yogurt, 170 g | 31.7 g | 20.4 g (our estimate) |
| Apple, 1 medium | 18.9 g | 0 g |
| Frosted corn flakes, 3/4 cup | 12.2 g | 11.5 g |
Plain yogurt has sugar on the label because milk contains lactose, so a small total sugars figure with no added sugars is expected. The USDA data we use does not report added sugar, so figures like the fruit yogurt one are our estimates from ingredients. The line on the package in your hand is the better number for that product.
A medium apple has plenty of natural sugar, and it comes with 4.4 g of fiber. Juice is the awkward case: 100% orange juice shows no added sugars on a US label, yet a cup holds 20.8 g of sugar with very little fiber. The WHO counts sugar in juice as free sugar, and so do we.
Should you compare per serving or per 100 g?
Use per 100 g when two products have different serving sizes. Bread shows why. Two slices of whole wheat bread (64 g) have 291 mg of sodium, and two slices of white bread (50 g) have 245 mg, so the white loaf looks less salty. Per 100 g the order flips: 455 mg for whole wheat and 490 mg for white. The whole wheat slices are simply heavier, and they bring 6 g of fiber per 100 g against 2.7 g.
US labels list the serving weight in grams, so a phone calculator gets you there. European labels already give values per 100 g, and they usually list salt instead of sodium, so the numbers do not line up directly with a US label.
What should you ignore on the front of the package?
The front is marketing, and the panel on the back is regulated in much more detail. “Multigrain” means more than one grain, and those grains may or may not be whole. In our data multigrain bread does well, with 7.4 g of fiber per 100 g, but loaves differ a lot, so check the fiber line and the first ingredient. “Natural” has no strict definition on most foods. Granola often has a wholesome image, and half a cup of ours still gives 298 kcal and 7.3 g of added sugar, along with 5.4 g of fiber. It can be a good food in a smaller portion.
Ingredients are listed by weight, largest first. If whole grain flour leads, the product is mostly whole grain. If sugar shows up early, or under several names such as syrup, dextrose or honey, the added sugars line will usually confirm it. A long ingredient list is one sign of a more processed food, though it tells you less than the numbers do.
The 60-second checklist
- Serving size. Compare it with what you really eat, and multiply if needed.
- Saturated fat, sodium, added sugars. Read the %DV and keep the total for the day in mind.
- Fiber and protein. Useful tie-breakers between similar products.
- Different serving sizes? Compare per 100 g.
- First few ingredients. Check whether the front of the package matches them.
No single food has to pass every line. A salty soy sauce used by the teaspoon (335 mg, 15% of the daily value) can sit comfortably in a meal built on vegetables and beans. For easy comparisons across categories, see our healthy swaps for 20 everyday foods.