14 of the 69 M&S cereals have no free sugar at all. M&S Honey Nut Corn Flakes has the most, with 26.6g per 100g, or 8g in a 30g serving. Below are all 69 ranked from least to most free sugar, in seven groups.
All 9 M&S cereals in this group, ranked from least to most free sugar. M&S Only 1 Ingredient Corn Flakes comes first with 0g of free sugar per 100g and M&S Honey Nut Corn Flakes comes last with 26.6g of free sugar per 100g.
All 9 M&S cereals in this group, ranked from least to most free sugar. M&S Only 5 Ingredients Multigrain Hoops comes first with 3.8g of free sugar per 100g and M&S Choco Hazelnut Pillows comes last with 22g of free sugar per 100g.
All 6 M&S cereals in this group, ranked from least to most free sugar. M&S Only 3 Ingredients Bran Flakes comes first with 2.1g of free sugar per 100g and M&S Bran Sticks comes last with 12.3g of free sugar per 100g.
All 11 M&S cereals in this group, ranked from least to most free sugar. M&S No Added Sugar Grain Free Granola comes first with 0g of free sugar per 100g and M&S Made Without 4 Nut & Flame Raisin Granola comes last with 16.5g of free sugar per 100g.
All 8 M&S cereals in this group, ranked from least to most free sugar. M&S Made Without Fruit & Nut Muesli comes first with 0g of free sugar per 100g and M&S Mixed Berry Muesli comes last with 7g of free sugar per 100g.
All 7 M&S cereals in this group, ranked from least to most free sugar. M&S High Protein Vegan Chocolate Crunch comes first with 5.7g of free sugar per 100g and M&S Triple Chocolate Crunch comes last with 21.7g of free sugar per 100g.
All 19 M&S cereals in this group, ranked from least to most free sugar. M&S Jumbo Oats comes first with 0g of free sugar per 100g and M&S Cafe Latte Porridge comes last with 15.1g of free sugar per 100g.
Cereals are ranked by free sugar per 100g, not total sugar. Free sugars are the sugars NHS daily limits apply to: added sugar, honey, syrups and fruit juice. Sugar that comes from whole or dried fruit and from milk is not free sugar, so a fruit muesli can have plenty of total sugar but less free sugar.
Boone works out free sugar from the ingredients list and nutrition panel on Ocado's M&S listings. The percentages are for a 30g serving against the daily limit for the age you pick: 30g for anyone 11 or over, 24g for 7 to 10 year olds and 19g for 4 to 6 year olds. Milk is not included.