How to track added sugar in everyday food

01

Choose what your diary is measuring

A useful record can be a note, a spreadsheet or an app. Give it separate places for the food, portion, total sugars, added sugars and where the information came from. This keeps a copied label value distinguishable from a guess. Total and added sugars answer different questions, so do not combine their columns into one sum.

• Use one unit consistently: grams of sugar.
• Keep the product name or a label photo so you can check an entry later.
• A complete record of one familiar breakfast is a practical starting point.

02

Scale the label to your portion

Read the serving size before copying the sugar figure. For this invented cereal example, the label gives 6 g total sugars, including 4 g added sugars, per 40 g serving. If you eat 60 g, multiply each sugar figure by 60 ÷ 40, or 1.5. The resulting 6 g of added sugars is already inside the 9 g total; the overall sugar amount is not 15 g.

03

What if the label only says ‘of which sugars’?

UK nutrition labels report sugars per 100 g or 100 ml, sometimes with a portion column too. That sugars figure is not a separate added-sugars measurement. Ingredients can show that a sweetener is present, but they usually cannot tell you exactly how many grams it contributes. Write ‘unknown’ for added sugars when you cannot establish the amount; do not copy total sugars into that field.

• For a per-100-g figure, multiply by your portion in grams and divide by 100.
• A blank field is missing information, not a zero-sugar food.
• You can still compare the total sugars of similar products on the same basis.

04

Keep fruit, milk and toppings distinct

An apple and plain milk contain naturally occurring sugars. Adding honey to yogurt introduces a separate source of sugar even if the yogurt started unsweetened. Record the components you actually use instead of giving an entire bowl a single ‘natural’ label. For a homemade recipe, start from the measured ingredients and divide their sugar contributions across the portions the recipe makes.

• Do not assume every fruit-flavored food is unsweetened; read its ingredients.
• Honey and syrups contribute added sugars, even when described as natural.
• Free sugars is a different term from added sugars, especially when discussing juice.

05

Review the record without pretending it is exact

Look for one repeated food or drink you would like to compare. A subtotal made from three known entries plus two unknown entries is an incomplete subtotal, not your complete daily intake. If you use Sweet Off, its Processed and Natural categories are estimates and are not equivalent to verified label fields. Keep the original label available when that distinction matters to your goal.

• Pick one affordable alternative you would enjoy and compare equal portions.
• Keep ordinary meals in your routine; recording food is not a reason to skip it.
• If tracking becomes stressful or restrictive, stop and seek appropriate support.

Sources & further reading

• FDA: Added Sugars on the Nutrition Facts Label
• FDA: How to Understand and Use the Nutrition Facts Label
• NHS: Food labels

General educational information; not a medically reviewed treatment plan. Our editorial approach.