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How much added sugar per day? The US and WHO limits

There is no single US number anymore. The Dietary Guidelines for Americans, 2025–2030 say no amount of added sugar is recommended as part of a healthy diet, and set a practical ceiling of 10 grams of added sugars per meal. The World Health Organization's limit is less than 10% of daily calories from free sugars, with a further step to below 5%. The Nutrition Facts label still uses a Daily Value of 50 grams of added sugars for a 2,000-calorie reference diet. Those three figures measure slightly different things, so it helps to know which one you are looking at.

Total, added, and free sugars are not the same number

A Nutrition Facts label shows two sugar lines. Total Sugars counts every sugar in a serving, including the lactose in milk and the fructose in fruit. Underneath it, the line "Includes X g Added Sugars" counts only part of that total.

FDA's labeling rule defines added sugars as sugars added during processing or sold as sweeteners on their own. That covers table sugar and other mono- and disaccharides, sugars from syrups and honey, and sugars from concentrated fruit or vegetable juice beyond what the same volume of plain juice would contain. A bag of sugar or a jar of honey counts as added sugar too.

WHO uses a slightly wider term, free sugars. It includes sugars added by a manufacturer, a cook, or you at the table, plus the sugars naturally present in honey, syrups, fruit juices, and juice concentrates. The practical difference is juice: a glass of 100% orange juice has no added sugars on a US label, but its sugar counts as free sugar under the WHO definition.

Neither definition covers the sugar inside whole fruit or plain milk. The 2025–2030 Dietary Guidelines make the same distinction and say those naturally occurring sugars are not added sugars.

What the 2025–2030 Dietary Guidelines say

The current edition, released in January 2026, changed the framing. The 2020–2025 edition set a daily limit: added sugars under 10% of calories starting at age 2. The new edition drops the percentage. It states that no amount of added sugars or non-nutritive sweeteners is recommended or considered part of a healthy diet, and then gives a working limit: one meal should contain no more than 10 grams of added sugars.

For snacks, it points to the limits in FDA's "healthy" claim. Its examples are 5 grams of added sugar per ¾-ounce whole-grain equivalent for grain snacks such as crackers, and 2.5 grams per ⅔-cup equivalent for dairy snacks such as yogurt. It also advises avoiding sugar-sweetened drinks like soda, fruit drinks, and energy drinks, and limiting 100% juice or diluting it with water.

The guidelines do not give a daily total in grams. Three meals at the per-meal ceiling would add up to 30 grams, but that is arithmetic, not a figure the document states. If you see "less than 10% of calories" quoted as the current US guideline, it is the 2020–2025 wording.

The WHO limit: under 10%, with 5% as a further step

WHO's guideline on sugars intake, published in 2015, makes two recommendations for adults and children. The first is to keep free sugars below 10% of total energy intake. WHO rates this a strong recommendation, based on evidence linking lower sugar intake to lower body weight and higher intake above 10% to more tooth decay.

The second is to go below 5% of energy, which WHO puts at roughly 25 grams, or about 6 teaspoons, a day. This one is labeled conditional. WHO explains that few studies have looked at populations eating that little sugar, and the dental evidence for the 5% level comes largely from population-level data collected around World War II, when sugar supplies dropped sharply.

Because WHO states its limits as a share of calories, the gram figure depends on how much you eat. The table below uses 4 calories per gram of carbohydrate, the general factor FDA allows for labels.

Daily calories

Under 10% (grams)

Under 5% (grams)

1,600

40

20

2,000

50

25

2,400

60

30

2,800

70

35

The 50 grams on the Nutrition Facts label

The %DV next to Added Sugars on a US label is based on a Daily Value of 50 grams, set for a 2,000-calorie reference intake for adults and children 4 and older. For children 1 through 3, labels use 25 grams on a 1,000-calorie reference. The 50 grams lines up with the 10% figure on a 2,000-calorie diet, so a product showing 12 grams of added sugars displays 24% DV.

That Daily Value is part of FDA's labeling regulation, not the Dietary Guidelines, so it did not change when the guidelines did. Read it as a reference point for comparing products rather than a daily target. If you want to apply the per-meal guidance, the grams line is more useful than the percentage: a breakfast cereal with 12 grams of added sugars per serving is already over the 10-gram meal limit before anything else goes in the bowl.

The added sugars line also has a rounding rule. Amounts are declared to the nearest gram, and a serving with less than 0.5 gram may be listed as zero. For more on how much leeway label numbers have, see how accurate nutrition labels are.

How much added sugar Americans eat

CDC, drawing on USDA's What We Eat in America data from NHANES 2017–2018, reports that adults 20 and older averaged 17 teaspoons of added sugars a day. Men averaged 19 teaspoons and women 15. These are dietary recall data from a national survey, so they describe averages across the population, not any one person's intake.

Even the women's average is well above WHO's 6-teaspoon reference for the 5% level, and it is hard to fit under a 10-gram-per-meal ceiling. That gap is the main reason the newer guidance focuses on specific sources: sugar-sweetened drinks, sweet packaged snacks, and flavored dairy.

Finding added sugar in what you eat

For packaged food, the label does most of the work. Check the Added Sugars line, compare it with the serving size you actually eat, and multiply if you eat two servings.

Without a label, the ingredient list helps. The Dietary Guidelines suggest looking for ingredients with "sugar" or "syrup" in the name or ending in "-ose," and list examples such as high-fructose corn syrup, agave syrup, rice syrup, dextrose, cane sugar, fruit juice concentrate, honey, and molasses.

Restaurant and homemade food is harder. Nothing on the plate tells you how much sugar went into a sauce or a dressing, and estimates of mixed dishes carry error whichever way you log them. The same is true of calorie logs in general, as covered in how far off calorie logs tend to be. Treat a per-meal number as a rough guide, and spend your attention on the items that carry the most added sugar.

Where CaRoot fits

CaRoot is a food logging app that estimates calories and macros (protein, fat, and carbs) from a photo of your meal. You can edit the estimate before saving, and if you correct a dish, the corrected values are used the next time. Sugars fall under carbohydrate, so the carbs figure includes them along with starch.

For packaged food, which is where the added sugars line is printed, you can scan the barcode (data from Open Food Facts, a community database; if an entry doesn't match your package, you can fix it to the printed values and the fix applies for everyone who scans that barcode) or scan the nutrition label directly. You can also search a food database built on USDA FoodData Central and other sources, look up restaurant and brand items, or enter a rough estimate by name. A weekly report shows your average calories, macro balance, and how consistently you logged.

CaRoot is free on iOS from the App Store, with ads in the free version, and you can start without an account. The Android version is in development; you can sign up at the Android waitlist to be notified when it launches.

Sources

This article is general nutrition information, not medical advice; if you have a health condition, talk with your doctor or a registered dietitian before changing how you eat.

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