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Original Cheerios Vs. Corn Flakes (Which Are Best?)

In this article, I’ll be comparing General Mills Original Cheerios against Kellogg’s Corn Flakes to find out which is best for nutrition, price, and flavor to help you make an informed choice on which is best for you.

Includes easy-to-use comparison tables to help you quickly find what you’re looking for – so read on to see who’s the winner!

Cheerios Vs. Corn Flakes Nutritional Comparison

In this section, I’ll be comparing Cheerios and Corn Flakes in a like-for-like comparison for each nutritional category. We need to look at like-for-like weights for each cereal to get the most accurate information. Recommended serving sizes can vary between products, so I’ve included both for information.

Please note that this information is based on Cheerios sold in the USA (produced by General Mills) and Kellogg’s Corn Flakes; the nutritional values of these cereals may vary slightly between different countries if another brand company makes them.

image to show cheerios on the left & corn flakes on the right with vs in the middle

Best for Calorie Content

Both original Cheerios and corn flakes are very close when it comes to calories, with Cheerios containing just 2kcal more per 100g of cereal than Corn Flakes.

If you consider recommended serving sizes, Corn Flakes contain more calories per serving because the serving is larger; however, weight-for-weight Cheerios contain slightly more calories.

Cereal TypeCalories Per 100gCalories Per Serving
Original Cheerios359kcal140kcal (39g)
Corn Flakes357kcal150kcal (42g)
The table shows the calories per 100g and serving of Original Cheerios and Kelloggs Cornflakes.

Best for Carbs & Sugar Content

If you’re keeping track of your carb and sugar content, then both kinds of cereal are relatively high, with Corn Flakes being the highest with 10.9g more carbohydrates than Cheerios per 100g as well as higher sugar content.

Carbohydrates Per 100g

Cereal TypeCarbs Per 100gOf Which Are Sugars (Per 100g)
Original Cheerios73.2g4.5g
Corn Flakes84.1g9.5g
The table shows the carbohydrate and sugar content per 100g of Original Cheerios and Kelloggs Cornflakes.

Carbohydrates Per 100g Per recommended Serving

Cereal TypeCarbs Per ServingOf Which Are Sugars (Per Serving)
Original Cheerios (39g)29g2g
Corn Flakes (42g)36g4g
The table shows the carbohydrate and sugar content per recommended serving of Original Cheerios and Kelloggs Cornflakes.

Best for Protein Content

Moving on to protein content per cereal, Original Cheerios win this category with 4.6g more protein per 100g of cereal than Corn Flakes.

Cereal TypeProtein Per 100gProtein Per Serving
Original Cheerios12.4g5g (per 39g of cereal)
Corn Flakes7.5g3g (per 42g of cereal)
The table shows the protein content per 100g and per serving to compare Cheerios and Corn Flakes.

Best for Fat Content

If you’re tracking fat consumption, Corn Flakes is the clear winner with only 0.4g of fat per 100 and only a nominal amount per serving. Although Original Cheerios have slightly more fat, they are still low in fat at 2.5g per serving.

The tables below show how much fat is in Original Cheerios and Corn Flakes per 100g and per recommended serving.

Fat Per 100g

Cereal TypeFat Per 100gOf Which Are Saturates (per 100g)
Original Cheerios6.6g1.3g
Corn Flakes0.4g0g
The table shows the amount of fat and saturated fat per 100g of Original Cheerios and Corn Flakes.

Fat Per recommended Serving

Cereal TypeFat Per ServingOf Which Are Saturates (Per Serving)
Original Cheerios (39g)2.5g0.5g
Corn Flakes (42g)0g0g
The table shows the amount of fat and saturated fat per serving of Original Cheerios and Corn Flakes.


After comparing both kinds of cereal, I found that neither one contains any cholesterol (as confirmed by the USDA).

Best for Fiber Content

Fiber is often a key consideration for breakfast cereal, with many people opting for higher-fiber choices to help up their intake for the day, but which is highest when it comes to Cheerios and Cornflakes?

Weight-for-weight Cheerios are the winner for dietary fiber, with 6.8g more fiber per 100g than Corn Flakes.

Cereal Type Dietary Fiber Per 100gDietary Fiber Per Serving
Original Cheerios10.1g3.9g (per 39g of cereal)
Corn Flakes3.3g1.4g (per 42g of cereal)
Table to show the amount of dietary fiber in 100g or a serving of Cheerios or Corn Flakes to compare the two.

Best for Sodium/Salt Content

If sodium (salt) intake is something that you need to monitor in your diet, the good news is that both kinds of cereal contain relatively low amounts per serving.

If you’re looking for a lower sodium option between the two, then Cheerios is the winner of this category as they contain 232mg less sodium per 100g of cereal.

Cereal TypeSodium/Salt Per 100gSodium/Salt Per Serving
Original Cheerios497mg194mg (per 39g of cereal)
Corn Flakes729mg306mg (per 42g of cereal)
Table to show the amount of Sodium/Salt in 100g or a serving of Cheerios or Corn Flakes to compare the two.

Best for Vitamins/Minerals

Breakfast Cereals are generally fortified with vitamins and minerals to help increase the consumer’s daily intake. Both Cheerios and Corn Flakes are fortified cereals, but is there any difference between the two?

After comparing both kinds of cereal, I found that Cheerios contain more vitamins and minerals per 100g and more types of vitamins and minerals that Corn Flakes don’t have.

On the plus side, Corn Flakes contain much more Vitamin D and similar amounts of essential vitamins like Vitamin C and B6 and contain the same amount of Iron as Cheerios.

The table below shows how much of each vitamin and mineral there are in 100g of Cheerios and Cornflakes so that you can compare the two.

Vitamin/Mineral TypeAmount Per 100g of CheeriosAmount Per 100g of Corn Flakes
Vitamin D3.6mcg 7.1mcg
Vitamin B61.7mg1.79mg
Vitamin C21.4mg21mg

Best for Flavor/Texture

When it comes to being the best for flavor and texture, this is down to the individual who’s eating them and is subjective.

Both kinds of cereal taste different and have different textures; when paired up with ice-cold milk, they’re probably both as popular as each other.

So the only way to find the true winner for this category is by taking a poll across a wide number of impartial voters.

You can help find the winner of this category by voting in the simple poll below (no personal details required), and once you’ve voted, you will be shown the percentage of votes for each cereal.

Which do you prefer?

Best for Price

At the time of writing this article at Walmart, an 18oz family-sized pack of Original Cheerios costs $3.98, and the exact size pack of Kellogg’s Corn Flakes costs $3.28.

In Target, a family-sized box of Original Cheerios costs $4.19, and Kellogs Corn Flakes are $3.49.

So in both superstores, Kellogg’s Corn Flakes are cheaper than Original Cheerios, and you can also go cheaper again by buying a non-brand version.

Overall Winner

Now we’ve compared Original Cheerios, and Corn Flakes in each category, the winner in the Cheerios vs. Cornflakes contest is Cheerios!

Cheerios are Lower in Carbs and sodium higher in protein, fiber, vitamins, and minerals. However, in some categories, Corn Flakes weren’t far behind, and it’s important to note they are lower in fat calories (slightly) and cost less.

Comparison CategoryWinner (Cheerios or Corn Flakes)
Best for Calorie ContentCorn Flakes
Best for Carbs & Sugar ContentCheerios
Best for Protein ContentCheerios
Best for Fat ContentCorn Flakes
Best for Fiber ContentCheerios
Best for Sodium ContentCheerios
Best for Vitamins/MineralsCheerios
Best for PriceCorn Flakes
Overall WinnerCheerios

Related Articles

I hope this article has helped you to find the information you were looking for; you might also find the following articles helpful too:

Cheerios Vs. Weetabix (Which is the Best?)

Shredded Wheat Vs Weetabix – Which is Best?

Pringles Vs. Doritos (Which is the Best?)

Coco Pops Vs. Rice Krispies (What’s the Difference?)

Corn Flakes Vs. Frosted Flakes (Which is Best?)

References Used for this Article

To ensure the nutritional information used in this article is accurate, I have used data from both the original producers and the USDA; the links below contain the source information:

Original Cheerios (General Mills) Product Information

USDA Cheerios Nutritional Information

Kelloggs Corn Flakes Smart Label

USDA Kellogs Corn Flakes Nutritional Information