A 30g bowl of Sainsbury's Honey Nut Clusters contains 130 kcal, 5.5g of sugar (all of it free sugar), 1.4g of fibre and 2.7g of protein. With 125ml of semi-skimmed milk the bowl comes to 189 kcal and 11.4g of total sugar. It is classed as NOVA 4 (ultra-processed).
All 18.4g of sugar per 100g in Honey Nut Clusters counts as free sugar, because it comes from added sugars rather than whole fruit or milk. A 30g bowl gives 5.5g, about 1.4 teaspoons.
Honey Nut Clusters is classed as NOVA 4, ultra-processed, because its ingredients include glucose syrup. These are industrial ingredients you would not use in a home kitchen. 1 of its 14 ingredients is of this kind.
Boone classifies processing from the published ingredient list using the NOVA system. Added vitamins and minerals are not counted as a marker of ultra-processing.