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24 Sep 2021

Kellogg's Crunchy Nut beaten by supermarket's own-label in Which? taste test

Several supermarket-brand honey nut flakes proved cheaper and tastier than Kellogg's - and they contain less sugar
Kellogg's Crunchy Nut next to bowl of cornflakes

If you have a honey nut cornflake habit, switching to a supermarket own-brand could save you nearly £50 a year - and reward you with a tastier and healthier breakfast bowl.

We asked a panel of 67 people to blind-taste seven supermarket brand honey nut cornflakes alongside Kellogg's Crunchy Nut.

We uncovered two Best Buys that stood out for their lovely crunchy texture and delicious honey nut flavour.

Both were cheaper than buying Crunchy Nut, and opting for our best-value pick could save you just over £47 a year over the branded version (based on one 30g serving per day).

If you're watching your sugar consumption, switching cereal can help here too. We checked the sugar content of each pack, and found supermarket honey nut cornflakes typically have around 20% less sugar than Kellogg's.

See our guide to the best honey nut cornflakes to discover our top picks.

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How much sugar is in Kellogg's Crunchy Nut?

Kellogg's Crunchy Nut is classed as high in sugar. It contains 35g per 100g - that's more than double the amount found in McVitie's digestive biscuits (15.1g per 100g).

Previous Which? research found people tend to eat bigger cereal portions than the recommended amount, so chances are you're consuming even more sugar than this in one serving.

When we compared it against other top-selling branded cereals, we found Kellogg's Crunchy Nut contains the most sugar per 100g, followed by Kellogg's Krave Milk Chocolate, which also has a high sugar rating.

Graphic comparing sugar per 100g in popular brande

Perhaps unsurprisingly, of the top 10, Weetabix and Nestle Shredded Wheat have the lowest sugar content - so they could be worth trying if you're keen to switch to a healthier option.

You could also try adding a smaller amount of sugar to plain cornflakes, which are also much lower in sugar.

Which honey nut cornflakes have the least sugar?

Bowl of cornflakes next to bowl of sugar cubes

All the supermarket honey nut cornflakes we tested contain less sugar than Kellogg's Crunchy Nut, so switching to an own label could be an easy way to reduce your sugar intake.

However, they aren't addictively tasty for nothing - most are still classed as high in sugar.

Of the cereals we tested, Lidl's Crownfield Honey Nut Flakes has the lowest sugar content, with 37% less than Kellogg's Crunchy Nut. It's therefore the only one that gets a 'medium' sugar rating, rather than high.

Honey nut cerealSugar per 100g (g)
Kellogg's Crunchy Nut35
Sainsbury's Honey Nut Cornflakes28.3
Asda Honey Nut Corn Flakes28
Aldi Harvest Morn Honey Nut Crunchy Cornflakes28
Tesco Honey Nut Cornflakes27.9
Morrisons Honey Nut Corn Flakes27.9
M&S Honey Nut Cornflakes27.9

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Do honey nut cornflakes have added vitamins?

Woman shopping for cereal

Like many cereals, own label honey nut cereals we tested are fortified with added vitamins including Vitamin D, Vitamin B12 and Iron.

The list below shows the typical Nutrient Reference Values for these cereals, which represents the proportion of your daily recommended amount in one 30g serving:

  • Vitamin D - 30%
  • Thiamin (B1) - 30%
  • Riboflavin (B2) - 30%
  • Niacin (B3) - 30%
  • Vitamin B6 - 30%
  • Folic Acid (B9) - 60% (Sainsbury's contains 30%)
  • Vitamin B12 - 30%
  • Iron - 30% (Sainsbury's contains 15%)

Kellogg's Crunchy Nut has more Vitamin D than the own-label cereals we tested, but contains a slightly lower amount of other vitamins.

Overall the amounts are relatively low versus an adult's daily requirements, but it's worth bearing in mind if you are taking high-strength supplements of, for example, vitamin D, which has a maximum recommended limit.

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How we tested honey nut cornflakes

Honey nut cornflakes packs

We asked 67 consumers who regularly eat cornflakes to blind taste Kellogg's Crunchy Nut alongside seven own label honey nut cereals.

They rated the flavour, texture, appearance and aroma, and told us what they liked and disliked about each one.

The order they sampled the products was fully rotated, and each panellist had a private booth so they couldn't discuss what they were tasting or be influenced by others.

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*Prices correct as of 23 September 2021