Understand the two label lines

FDA defines Total Sugars as all sugars in the serving, including sugars naturally present in foods such as fruit or milk plus any added sugars. The Added Sugars line reports the subset added during processing or preparation under the labeling definition. Because added sugars are already included in total sugars, adding the two lines together double-counts them.

Scale the labeled values

Read the serving size and determine how many servings you ate. Multiply Total Sugars and Added Sugars by the same factor. If one serving lists 12 grams total sugars including 7 grams added sugars, two servings contain 24 grams total sugars including 14 grams added sugars—not 38 grams of sugar.

Use the ingredient list as context, not arithmetic

The ingredient list can identify sweetening ingredients, but it generally does not state how many grams each contributes. Ingredient order reflects weight under labeling rules but does not provide a recipe. Use the declared Added Sugars line for the packaged serving rather than trying to reverse-engineer grams from ingredient order.

Handle homemade and restaurant foods

For a recipe, calculate added sugars from the measured sweetening ingredients and divide by the consumed share, while recognizing that some packaged ingredients contribute their own added sugars. For an unlabeled restaurant meal or photographed dessert, exact separation of added and naturally occurring sugars is often impossible. Report total-sugar or added-sugar scenarios only when the reference supports them.

Interpret percent Daily Value

Labels display percent Daily Value for Added Sugars, not Total Sugars. FDA describes the Daily Value as a general reference for how one serving contributes to a daily diet. It is not an individualized prescription, and the rest of a food's nutrient profile and the broader eating pattern still matter.

Avoid common tracking errors

Do not treat fruit's naturally occurring sugar as added sugar, do not assume ‘no added sugar’ means sugar-free, and do not infer an exact added-sugar value from taste or appearance. Check product versions and serving sizes, since reformulation or a different container can change the current label.

Limits and cautions

  • Added sugar usually cannot be separated exactly in an unlabeled mixed meal without a known recipe.
  • Label values are serving-specific and can change when a product is reformulated.
  • This resource is educational and does not provide individualized medical or nutrition treatment.
  • Methods and product behavior are reviewed periodically; the displayed review date indicates the current editorial version.

Sources and further reading

  1. Added Sugars on the Nutrition Facts Label — U.S. Food and Drug Administration Accessed 2026-08-01.
  2. Serving Size on the Nutrition Facts Label — U.S. Food and Drug Administration Accessed 2026-08-01.
  3. Daily Value on the Nutrition and Supplement Facts Labels — U.S. Food and Drug Administration Accessed 2026-08-01.
  4. Feast - Caloric Intelligence — Apple App Store Accessed 2026-08-01.