A 30g bowl of M&S No Added Sugar Swiss Style Muesli contains 110 kcal, 4.2g of sugar (no free sugar), 2.2g of fibre and 3.2g of protein. With 125ml of semi-skimmed milk the bowl comes to 169 kcal and 10.1g of total sugar. It is classed as NOVA 4 (ultra-processed).
No Added Sugar Swiss Style Muesli has 14.0g of sugar per 100g but no free sugar. M&S labels it no added sugar: its sugar comes from the fruit, grain and any milk in it. None of it counts towards the NHS daily free sugar limit.
No Added Sugar Swiss Style Muesli is classed as NOVA 4, ultra-processed, because its ingredients include whey. These are industrial ingredients you would not use in a home kitchen. 1 of its 6 ingredients are 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.