How to Read a Nutrition Facts Label in 60 Seconds
The Nutrition Facts label is on nearly every package in the grocery store, and most of us glance past it. It is not hard to read, though. A few habits make it quick, and they turn a wall of numbers into a clear yes, no or maybe.
Step 1: Check the serving size and servings per container
This is the step people skip, and it changes everything else on the label. All the numbers below it refer to one serving, not the whole package.
The FDA gives a good example. A lasagna label lists one serving as 1 cup. If you eat 2 cups, every number doubles:
| Lasagna label (FDA example) | 1 serving (1 cup) | 2 servings (2 cups) |
|---|---|---|
| Calories | 280 | 560 |
| Saturated fat | 4.5 g (23% DV) | 9 g (46% DV) |
| Sodium | 850 mg (37% DV) | 1,700 mg (74% DV) |
| Dietary fiber | 4 g (14% DV) | 8 g (29% DV) |
Source: U.S. Food and Drug Administration, "How to Understand and Use the Nutrition Facts Label."
Two servings of that lasagna carry almost three quarters of a full day's sodium. That is the kind of thing you will only notice if you start with the serving size.
Step 2: Use the 5 and 20 percent rule
The percent Daily Value, written %DV, tells you how much one serving contributes to a full day's recommended amount of a nutrient. The FDA offers a simple guide:
- 5 percent DV or less of a nutrient per serving is considered low.
- 20 percent DV or more per serving is considered high.
The Daily Values are based on a 2,000 calorie diet, so treat them as a handy yardstick, not a personal prescription. Total sugars and trans fat do not have a %DV.
Step 3: Pick the right direction for each nutrient
Whether high or low is good depends on the nutrient. The FDA groups them this way:
| Aim for a higher %DV | Aim for a lower %DV |
|---|---|
| Dietary fiber | Saturated fat |
| Vitamin D | Sodium |
| Calcium | Added sugars |
| Iron | |
| Potassium |
The FDA says Americans generally eat too much saturated fat, sodium and added sugars, and often too little fiber, vitamin D, calcium, iron and potassium. The label is there to help you tilt the balance.
The Daily Values worth remembering
You do not need to memorize the label's math. These five are enough to make the grams and milligrams meaningful:
| Nutrient | Daily Value |
|---|---|
| Dietary fiber | 28 g |
| Added sugars | 50 g |
| Saturated fat | 20 g |
| Sodium | 2,300 mg |
| Potassium | 4,700 mg |
Source: FDA, "Daily Value on the Nutrition and Supplement Facts Labels." For fiber goals by age and sex, see how much fiber you need per day.
Step 4: Look closely at added sugars
Added sugars have their own line on the label, and it is worth a second look. They include sugars added during processing, such as table sugar, syrups and honey, and sugars from concentrated fruit or vegetable juices. They do not include sugars that occur naturally in milk, fruits and vegetables.
The Dietary Guidelines for Americans recommend keeping added sugars below 10 percent of total calories. On a 2,000 calorie diet, that is 200 calories, or 50 grams a day. The FDA notes that for most Americans, the main sources are sugar-sweetened drinks, baked goods, desserts and sweets.
That is why the added sugars line is more useful than the total sugars line. For example, a plain yogurt can show several grams of total sugar and 0 grams of added sugar, because all of it comes from the milk.
Step 5: Compare two products fairly
The label is most useful when you are choosing between two similar foods, like two cereals or two cans of soup. The FDA's advice is to use the %DV to compare, but make sure the serving size is the same first. A cereal that lists a half-cup serving will look better than one that lists a full cup, even if the foods are identical.
The 60-second routine
- Serving size. How much am I really going to eat?
- Sodium, saturated fat and added sugars. Are any of them 20% DV or more?
- Fiber. Is it 20% DV or more? Then that is a point in its favor.
- Added sugars in grams. Is one serving using up a big share of your 50 grams?
- Ingredient list. Is it short and made of foods you recognize? Our guide to ultra-processed foods explains what to look for.
The takeaways
- Start with the serving size. Every number is per serving.
- 5% DV or less is low. 20% DV or more is high.
- Look for more fiber, vitamin D, calcium, iron and potassium.
- Look for less saturated fat, sodium and added sugars.
- Compare two foods using the same serving size.
Nutrition label questions people ask
What does %DV mean on a nutrition label?
What is a good percent Daily Value for sodium?
How many grams of added sugar are okay per day?
What is the difference between total sugars and added sugars?
Which nutrients should I look for more of on a food label?
Sources
- U.S. Food and Drug Administration. How to Understand and Use the Nutrition Facts Label.
- U.S. Food and Drug Administration. Daily Value on the Nutrition and Supplement Facts Labels.
- U.S. Food and Drug Administration. Added Sugars on the Nutrition Facts Label.
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This guide is for general education. It is not medical advice and is not intended to diagnose, treat, cure or prevent any disease. Talk to your doctor or a registered dietitian before changing your diet, especially if you take medication or manage a health condition.