Figures from KitKat UK product page, collected by Boone. Free sugar calculated by Boone. Last checked 17 October 2026. Data checks are led by Murray Dare.
KitKat’s page gives no kJ figure, so Boone converts from kcal.
Colours use the Food Standards Agency front-of-pack thresholds per 100g. RI is the adult reference intake.
One bar (41.5g) of KitKat Cookie Dough 4 Finger. Figures from Nestlé; portion figures calculated by Boone. How
Sugar in milk and whole or dried fruit is not free sugar. NHS →
The NHS free sugar limit is 19g a day at age 4 to 6, 24g at 7 to 10 and 30g from 11. There is no limit for under 4s: they should avoid free sugar.
#27 of 40 Nestlé chocolate for least free sugar per portion.
The 2018 model indicates this portion is less healthy: it scores 23, at or above the line of 4.
Higher is less healthy; 4 or more would be classed as less healthy under this model. How the score works →
#5 of 40 Nestlé chocolate for this score (lower is better).
14 ingredients; 3 are additives or industrial ingredients (orange).
The ingredient list does not include any fortification.
Group 4 because the ingredient list includes the industrial ingredients below. Added vitamins and minerals are not counted. How NOVA works →
Per 100g as sold, and per portion.
| Per | 100g | One bar (41.5g) |
|---|---|---|
| Energy | 512 kcal | 212 kcal |
| Fat | 26.4g | 11g |
| of which saturates | 14.8g | 6.1g |
| Carbohydrate | 61.1g | 25.4g |
| of which sugars | 44.7g | 18.6g |
| Free sugar (Boone) | 44.7g | 18.6g |
| Fibre | 1.9g | 0.8g |
| Protein | 6.5g | 2.7g |
| Salt | 0.2g | 0.08g |
212 kcal in one bar (41.5g). Per 100g it is 512 kcal.
One bar (41.5g) has 18.6g of sugar, and Boone calculates 18.6g of it is free sugar, about 4.6 teaspoons. That is 98% of the 19g daily limit for a child aged 4 to 6 and 62% of the 30g adult limit.
One bar (41.5g) gives 0.8g of fibre and 98% of a 4 to 6 year old’s free sugar limit. Nestlé Blue Riband has 9.1g of free sugar per portion.
Yes, NOVA group 4. The ingredient list includes modified starches and sugars, emulsifiers, flavourings.
23 on the UK Nutrient Profiling Model 2018, calculated by Boone per 100g. Scores run from -20 to 40; 4 or more would be classed as less healthy.
Source. KitKat UK product page, nutrition panel and ingredient list, per 100g as sold.
Collected. Copied by Boone from Nestlé’s published figures. Data checks are led by Murray Dare.
Calculated by Boone. Free sugar, portion figures, traffic lights and the nutrient profile score. Labelled where they appear.
Limits. NHS free sugar and salt limits by age; UK reference intakes for adults.
Track your day in the Boone appCookies on Boone
We use analytics cookies to see how people use the site so we can improve it. They are only set if you accept. Cookie policy