M&S Frosted Flakes comes first, with 6.3g of protein per 100g, and M&S High Protein Peanut & Oat Granola comes last, with 24g of protein per 100g. Below are all 69 M&S cereals ranked from least to most protein, in seven groups.
All 9 M&S cereals in this group, ranked from least to most protein. M&S Frosted Flakes comes first with 6.3g of protein per 100g and M&S Fruit & Fibre Flakes comes last with 9.1g of protein per 100g.
All 9 M&S cereals in this group, ranked from least to most protein. M&S Choco Pops comes first with 7.4g of protein per 100g and M&S Choco Crocos comes last with 11g of protein per 100g.
All 6 M&S cereals in this group, ranked from least to most protein. M&S Sultana Bran Flakes comes first with 10g of protein per 100g and M&S Bran Sticks comes last with 13.6g of protein per 100g.
All 11 M&S cereals in this group, ranked from least to most protein. M&S Made Without 4 Nut & Flame Raisin Granola comes first with 9.9g of protein per 100g and M&S High Protein Peanut & Oat Granola comes last with 24g of protein per 100g.
All 8 M&S cereals in this group, ranked from least to most protein. M&S Mixed Berry Muesli comes first with 9.1g of protein per 100g and M&S Totally Nuts Muesli comes last with 13.2g of protein per 100g.
All 7 M&S cereals in this group, ranked from least to most protein. M&S Made Without Triple Chocolate Crunch comes first with 8.3g of protein per 100g and M&S High Protein Vegan Chocolate Crunch comes last with 23.3g of protein per 100g.
All 19 M&S cereals in this group, ranked from least to most protein. M&S Made Without Wheat Gluten Free Apple & Chia Overnight Oats comes first with 10.1g of protein per 100g and M&S Made Without Wheat Gluten Free Mixed Berry & Almond Overnight Oats comes last with 21.2g of protein per 100g.
Protein is per 100g as sold, from the nutrition panels on Ocado's M&S listings. The figure in brackets is grams of protein per 100 calories, which shows how much of a cereal's energy comes from protein.
The percentages are for a 30g serving against the UK labelling reference intake of 50g a day for adults, with lower reference values for children. Milk adds protein and is not included here; each product page adds it.