Field guide · 9 minute read
How to Read Nutrition Labels and Added Sugar
Scale label values to your portion and keep serving sizes, total sugar, added sugar, %DV and %RI straight.
01
Choose the label system first
US Nutrition Facts and EU/UK declarations use different reference systems and sugar wording. Mixing them can turn correct arithmetic into a misleading explanation.
US values are often per labelled serving and may identify added sugar. EU/UK panels standardise values per 100 g or 100 ml and use “of which sugars” for total sugars.
02
Find the multiplier
For a US panel, multiply each per-serving value by servings consumed. For an EU/UK panel, divide your portion by 100, then multiply every per-100 value by that factor.
Apply the multiplier before calculating %DV or %RI. Those percentages are adult population references, not personalised targets or a food-quality score.
03
Total and added sugar are not interchangeable
US total sugar includes naturally occurring and added sugars; the added-sugars line is a subset. An EU/UK sugars line does not reveal how much was added.
For drinks, keep missing added-sugar values unknown. Calories from sugar can be described using 4 kcal/g, but that is not necessarily the drink’s total energy.
04
Check units before comparison
US sodium is stated directly in milligrams, while EU/UK labels usually declare salt. Do not compare salt grams directly with sodium milligrams. Keep the chosen jurisdiction and units visible.
Safe interpretation by label
| Label line | What it means |
|---|---|
| US Total Sugars | Naturally occurring plus added sugars |
| US Includes X g Added Sugars | A subset of total sugar |
| EU/UK of which sugars | Total sugars; do not infer added sugar |
| %DV / %RI | Population reference, not a personal target |
Fictional worked example
Put the arithmetic in view
- A cereal lists 180 kcal, 8 g added sugar and 210 mg sodium per 40 g. The portion is 60 g.
- Multiplier: 60 ÷ 40 = 1.5. Results: 270 kcal, 12 g added sugar and 315 mg sodium.
- 12 ÷ 50 × 100 = 24% added-sugar DV; 315 ÷ 2,300 × 100 = 13.7%, displayed as 14% sodium DV.
Questions readers ask
FAQ
Is total sugar the same as added sugar?
No. On a US label, added sugar is part of total sugar. An EU/UK “sugars” line usually does not identify how much was added.
Why does an EU label use values per 100 g?
The standard base makes products easier to compare. This tool multiplies those values by your portion divided by 100.
Does “no added sugar” mean sugar-free?
No. A product may still contain naturally occurring sugar; read the total-sugars line and ingredients.
Should %DV be multiplied for more than one serving?
Yes. This tool scales the nutrient amount first, then calculates the reference percentage for what was eaten.
Why can my result differ from the front of pack?
The package may use different rounding or a different reference basis. Check serving size, jurisdiction and whether values are per serving or per 100 units.
Evidence register
Sources and scope
These references support the method or context; they do not validate an individual result.
How to understand and use the Nutrition Facts Label
US Food and Drug Administration · Current
Supports: US serving and %DV interpretationRegulation (EU) No 1169/2011
European Union · 2011
Supports: EU declarations and Reference IntakesSomething needs correction? Tell the editorial team.