How many carbs does a blueberry donut have?

Donuts are a classic bakery treat that many people enjoy. However, with increased attention being paid to healthy eating and managing carbohydrate intake, some donut lovers wonder just how many carbs are in their favorite donut varieties. One popular type of donut is the blueberry donut. This fruit-filled option provides a sweet taste of summer in every bite. But does the addition of blueberries impact the carbohydrate content? Let’s take a closer look at how many carbs are found in a typical blueberry donut.

What are Carbohydrates?

Before diving into the specifics on blueberry donuts, it helps to have an understanding of carbohydrates. Carbohydrates, or carbs for short, are one of three main macronutrients found in food, along with protein and fat. Carbs are the main source of energy for the body and brain.

There are three main types of carbohydrates:

  • Sugars – These are simple carbs like glucose, fructose, sucrose, and lactose. They are found naturally in many foods like fruits and dairy.
  • Starches – Starches are complex carbs found in grains, legumes, and starchy vegetables like potatoes. The starch molecules are made up of long chains of glucose molecules.
  • Fiber – Fiber is the indigestible part of plant foods. It passes through the body undigested but plays an important role in digestive health.

When looking at nutrition information, carbs include all three of these components. The amount of total carbs, fiber, and sugars will be listed. Knowing the differences between these types of carbs can help inform healthy food choices.

Carbs in Donuts

In general, donuts are considered a high carb food. A standard glazed or jelly donut can contain between 20-35 grams of total carbs per donut. The majority of these carbohydrates come from added sugars and refined flour.

Let’s look closely at the typical ingredients in a basic donut recipe:

  • Refined Flour – Regular all-purpose flour is mostly starch, which is broken down into glucose molecules during digestion. A donut made with refined flour will spike blood sugar levels.
  • Sugar – Granulated sugar and other added sugars account for a large portion of the carbohydrates in donuts. These simple carbs cause a rapid rise in blood sugar.
  • Eggs and Milk – These dairy ingredients provide a small amount of naturally occurring lactose sugar.
  • Fat – Donuts are fried in oil, which contributes calories but no carbs.
  • Leavening Agents – Baking soda or baking powder help donuts rise when cooked. They do not contain carbs.
  • Salt and Flavorings – These additional ingredients are carb-free.

As you can see, the main sources of carbs in standard donuts are added sugar and refined flour. The preparation method of frying also increases the calorie density. This combination of refined carbs and high calories is why donuts are considered an unhealthy food choice, even though they taste delicious!

Impact of Blueberries

Now that we know the basics around carbs in donuts, how does adding blueberries to the mix impact the numbers? Fresh blueberries are relatively low in carbohydrates, with about 15 grams of carbs per cup. This includes 10 grams of sugar and 3 grams of fiber.

When added to a donut recipe, the blueberries do slightly increase the total carbohydrate content. However, if the baker reduces the amount of refined flour or sugar in the recipe to compensate, the blueberry donut may end up with a similar carb count as a non-berry donut.

Some key points on how adding blueberries impacts carbs:

  • Blueberries add natural fructose from the fruit.
  • If extra sugar is added to sweeten the blueberry filling, carbs go up.
  • Berries displace some flour or sugar that would normally be in a donut.
  • Fiber increases slightly due to the blueberry skins, but not by a significant amount.
  • The extra moisture from berries means less flour is needed in the dough.

Overall, the effect on net carbs is relatively neutral. While blueberries do add some sugars, they also offset refined carbs to some degree. Much depends on the specific recipe the baker uses.

Exact Carb Counts

Now let’s look at some actual nutrition numbers for blueberry donuts from major food chains and brands. The carb content can vary quite a bit depending on factors like donut size and specific ingredients.

Krispy Kreme

  • Original Glazed Donut: 24g carbs
  • Blueberry Glazed Donut: 33g carbs

Krispy Kreme’s fruit-filled donuts are larger than their original glazed donuts. The additional blueberry glaze and larger size does put these at 9 more grams of carbs per donut.

Dunkin Donuts

  • Glazed Donut: 29g carbs
  • Blueberry Donut: 38g carbs

Dunkin also shows a significant carb jump when comparing plain glazed to blueberry. The blueberry variety has 9 more grams.


  • Classic Donuts: 26g carbs
  • Blueberry Donuts: 30g carbs

For packaged baked goods like Entenmann’s, the difference is a bit smaller at only 4 more grams of carbs for the blueberry option.

Grocery Bakery

Looking at donuts sold at large grocery store chains, the numbers for their bakery departments include:

  • Kroger Blueberry Donut – 23g carbs
  • Safeway Blueberry Donut – 26g carbs
  • Albertsons Blueberry Donut – 24g carbs

These fresh bakery donuts have carb counts in line with other non-berry varieties. The blueberry flavor does not seem to increase carbs significantly.

Tips for Reducing Carbs in Blueberry Donuts

While blueberry donuts may sound like a healthier choice compared to other flavored donuts, most still contain high amounts of refined carbs and sugar. However, there are some easy ways to reduce the net carbs in homemade blueberry donuts:

  • Use whole wheat or almond flour instead of all-purpose flour.
  • Add extra blueberries and reduce the amount of added sugar.
  • Mix in oats, coconut flour, or protein powder to increase fiber.
  • Bake donuts instead of frying to eliminate empty calories from oil.
  • Top with reduced-sugar glaze or lemon zest instead of drizzling with sugary icing.
  • Portion into donut holes instead of large full-size donuts.

With some simple substitutions and preparation tweaks, you can definitely make blueberry donuts with fewer carbs and more nutrition than what you’ll find in most bakeries.

Other Factors Influencing Carb Content

It’s important to remember nutrition information is an estimate, and the actual carb content of any particular blueberry donut can vary. Here are some factors that play a role:

  • Donut Size – A larger donut automatically has more of all nutrients compared to a smaller one.
  • Serving Size – Nutrition numbers may be listed for one donut or multiple donuts.
  • Fillings and Toppings – Jelly, icing, and glazes add more carbohydrates.
  • Specific Blueberry Type – Wild blueberries have slightly more carbs than cultivated blueberries.
  • Time of Year – Seasonal changes in blueberry quality and size impacts carbs.
  • Preparation Method – Baked donuts generally have fewer carbs than fried.

Even donuts from the same restaurant can vary day to day. The nutrition information gives an estimate, but it’s impossible to be exact with a baked good.

The Bottom Line

So, what’s the final answer on how many carbs are in a blueberry donut? On average, a commercial blueberry donut contains about 30-40 grams of total carbohydrates per donut. This is slightly higher than plain cake or glazed donuts.

The extra grams of carbohydrates come primarily from the natural sugars in blueberry filling or glaze. But other ingredients like flour, sugar, and milk still make up the bulk of the carbs.

While the blueberry flavor might lead some to believe these are healthier, most still contain high amounts of refined flour and added sugar. Making adjustments when baking homemade blueberry donuts can reduce the carb content. But overall, most types of donuts should still be viewed as a high carb indulgence.


Donuts are a beloved breakfast treat, but their high carb count can be of concern for some consumers. While fruit-filled varieties like blueberry may sound healthier at first glance, they still contain abundant refined carbohydrates. The blueberries do add some additional natural sugars, resulting in slightly higher carb totals around 30-40g per donut.

Yet even without berries, plain cake and glazed donuts also provide 20-30g carbs. So the extra carbs from blueberries are only a relatively small portion. Those looking to reduce carb intake can make modifications when baking donuts at home, like using whole grain flours or reducing sugar. But ultimately, most donuts should be still be considered high-carb foods rather than daily diet staples. The sweet taste of a blueberry donut may seem appealing, but their hefty carb load can add up quickly.

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