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The Highest Protein Sainsbury's Own-Brand Cereals, Ranked

Sainsbury's High Protein Chocolate & Nut Granola comes first, with 24.4g of protein per 100g, and Sainsbury's Frosted Flakes comes last, with 5.8g of protein per 100g. Below are all 77 Sainsbury's own-brand cereals ranked from most to least protein, in seven groups.

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Flakes ranked from most to least protein

All 7 Sainsbury's own-brand cereals in this group, ranked from most to least protein. Sainsbury's Wholegrain Fruit & Fibre comes first with 8.8g of protein per 100g and Sainsbury's Frosted Flakes comes last with 5.8g of protein per 100g.

Sainsbury's Wholegrain Fruit & Fibre

381
5.6
0.56
12
8.8
kcal
g of
g protein
 Calories
(
(
0
 manufactured)
0.4
Teaspoons)
6
(
2.3
g per 100 calories)
6
6
5
3
0
% of an adult's daily calories
Energy and free sugars account for most of its 16 penalty points (5 and 5). It earns back credit for fibre (10). Its protein does not count, because it scores 11 or more penalty points.
% of ingredients are manufactured
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Sainsbury's SO Organic Cornflakes

381
2.1
0.8
5
7.8
kcal
g of
g protein
 Calories
(
(
1
 manufactured)
0.2
Teaspoons)
3
(
2
g per 100 calories)
6
2
5
4
20
% of an adult's daily calories
Energy and salt account for most of its 10 penalty points (5 and 3). It earns back credit for fibre (3) and protein (4).
% of ingredients are manufactured
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Sainsbury's Special Flakes with Red Fruits

366
12.6
0.29
8
7.5
kcal
g of
g protein
 Calories
(
(
0
 manufactured)
0.9
Teaspoons)
5
(
2
g per 100 calories)
5
13
4
1
0
% of an adult's daily calories
Free sugars and energy account for most of its 15 penalty points (10 and 4). It earns back credit for fibre (10). Its protein does not count, because it scores 11 or more penalty points.
% of ingredients are manufactured
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Sainsbury's Cornflakes

382
4.2
0.85
5
7.4
kcal
g of
g protein
 Calories
(
(
0
 manufactured)
0.3
Teaspoons)
9
(
1.9
g per 100 calories)
6
4
4
4
0
% of an adult's daily calories
Energy and free sugars account for most of its 12 penalty points (5 and 4). It earns back credit for fibre (3). Its protein does not count, because it scores 11 or more penalty points.
% of ingredients are manufactured
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Sainsbury's Special Flakes

369
11.9
0.28
6
7.4
kcal
g of
g protein
 Calories
(
(
0
 manufactured)
0.9
Teaspoons)
7
(
2
g per 100 calories)
6
12
4
1
0
% of an adult's daily calories
Free sugars and energy account for most of its 15 penalty points (10 and 4). It earns back credit for fibre (8). Its protein does not count, because it scores 11 or more penalty points.
% of ingredients are manufactured
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Sainsbury's Honey Nut Cornflakes

399
29.2
0.47
9
6.7
kcal
g of
g protein
 Calories
(
(
1
 manufactured)
2.2
Teaspoons)
13
(
1.7
g per 100 calories)
6
29
4
2
11
% of an adult's daily calories
Free sugars and energy account for most of its 16 penalty points (10 and 5). It earns back credit for fibre (3). Its protein does not count, because it scores 11 or more penalty points.
% of ingredients are manufactured
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Sainsbury's Frosted Flakes

396
26.9
0.7
5
5.8
kcal
g of
g protein
 Calories
(
(
0
 manufactured)
2
Teaspoons)
14
(
1.5
g per 100 calories)
6
27
3
3
0
% of an adult's daily calories
Free sugars and energy account for most of its 17 penalty points (10 and 5). It earns back credit for fibre (3). Its protein does not count, because it scores 11 or more penalty points.
% of ingredients are manufactured
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Puffs, hoops and pops ranked from most to least protein

All 11 Sainsbury's own-brand cereals in this group, ranked from most to least protein. Sainsbury's High Protein Caramel Flavour Crunch comes first with 23g of protein per 100g and Sainsbury's Caramelised Biscuit Boulders comes last with 5.9g of protein per 100g.

Wheat biscuits and bran ranked from most to least protein

All 8 Sainsbury's own-brand cereals in this group, ranked from most to least protein. Sainsbury's High Fibre Bran comes first with 13.7g of protein per 100g and Sainsbury's Free From Bran Flakes comes last with 6.8g of protein per 100g.

Granola ranked from most to least protein

All 16 Sainsbury's own-brand cereals in this group, ranked from most to least protein. Sainsbury's High Protein Chocolate & Nut Granola comes first with 24.4g of protein per 100g and Sainsbury's Tropical Granola comes last with 8.3g of protein per 100g.

Muesli ranked from most to least protein

All 8 Sainsbury's own-brand cereals in this group, ranked from most to least protein. Sainsbury's Free From Fruity Muesli comes first with 14.1g of protein per 100g and Sainsbury's Taste the Difference Fruit & Nut Muesli comes last with 7.8g of protein per 100g.

Clusters and crunch ranked from most to least protein

All 9 Sainsbury's own-brand cereals in this group, ranked from most to least protein. Sainsbury's High Protein Chocolate Crisp comes first with 22.5g of protein per 100g and Sainsbury's Triple Chocolate Crisp comes last with 8.4g of protein per 100g.

Porridge oats, sachets and pots ranked from most to least protein

All 18 Sainsbury's own-brand cereals in this group, ranked from most to least protein. Sainsbury's Nut & Maple Flavour Porridge Pot comes first with 21.6g of protein per 100g and Sainsbury's Golden Syrup Porridge Sachets comes last with 8.1g of protein per 100g.

Protein is per 100g as sold, from the nutrition panels on Sainsbury's own-brand listings. Porridge pots are labelled for the pot made up with water; Boone has converted them to the dry contents so they compare fairly. 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.

Frequently asked questions

Which Sainsbury's own-brand cereal has the most protein?+

Sainsbury's High Protein Chocolate & Nut Granola, with 24.4g of protein per 100g, or 7.3g in a 30g serving before milk.

Which Sainsbury's own-brand cereal has the least protein?+

Sainsbury's Frosted Flakes, with 5.8g per 100g.

How much protein does milk add?+

About 4.4g in 125ml of semi-skimmed milk and 4.1g with soya drink. Oat drink adds about 1.3g and almond drink 0.5g. Each product page adds the milk you choose.

What does protein per 100 calories mean?+

It shows how much of a cereal's energy comes from protein. A higher number means more protein for the same calories, which is more useful than protein per 100g when comparing a light flake with a dense granola.

Where does this data come from?+

The nutrition panels and ingredients lists on Sainsbury's own-brand cereal listings at sainsburys.co.uk, collected in October 2026. Branded cereals sold at Sainsbury's, such as Kellogg's or Weetabix, are not included. Boone works out free sugar, manufactured ingredients and nutrient profiling scores from them.