A step-by-step label reading guide with a serving-size example.
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1. Check the serving size
Nutrition numbers may be shown per serving, per package or per 100 g. Decide how much you actually eat before comparing products.
- Compare products using the same basis.
- A package may contain more than one serving.
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2. Separate total and added sugars
On a US Nutrition Facts label, “Includes X g Added Sugars” is part of Total Sugars, not an amount to add on top. Other countries may not require a separate added sugars line.
- Illustrative example: a label lists 12 g total sugars, including 8 g added sugars, per serving.
- For two servings, that is 24 g total sugars, including 16 g added sugars—not 40 g total sugars.
- The FDA label Daily Value for added sugars is 50 g on a 2,000-calorie diet. It is a labeling reference, not an individualized target.
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3. Read the ingredient list
Examples of ingredients contributing added sugars include sugar, sucrose, dextrose, honey, molasses, and corn syrup. Ingredient names help identify sources, but do not reveal exact grams of added sugar by themselves.
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4. Check the original label after scanning
A scanner can make logging easier, but product recipes, serving sizes and estimates can differ. Compare the app result with the package and correct your record when needed. A photograph of a meal cannot establish its exact recipe.
Sources & further reading
General educational information; not a medically reviewed treatment plan. Our editorial approach.