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How Many Carbs in a Chocolate Brownie?
Blog / Health and Nutrition / How Many Carbs in a Chocolate Brownie?

How Many Carbs in a Chocolate Brownie?

Ah, the indulgent chocolate brownie - a beloved treat many of us find hard to resist.

But in an age where we're becoming increasingly health-conscious and often counting our carbs, it's worth asking: just how many carbohydrates does a typical chocolate brownie contain?

Before you next bite into that gooey, fudgy slice, let's delve into the numbers and provide some clarity on the carb content of this delectable dessert.

How Many Carbs in a Chocolate Brownie?

The carbohydrate content of a chocolate brownie largely depends on its size, ingredients, and specific recipe.

In the UK, a standard homemade or shop-bought brownie slice (approximately 60g) typically contains:

  • Total Carbohydrates: Between 30g to 40g.
  • Sugars (a subset of total carbohydrates): Around 15g to 25g.

However, it's essential to bear in mind several factors:

  • Recipe Variations: Brownies made with alternative ingredients, such as almond flour instead of wheat flour, might have a different carb count. Similarly, those with added nuts, chocolate chips, or other fillings can alter the carbohydrate content.

  • Serving Size: The figures mentioned are for a standard serving size. A larger or more decadent slice could contain more carbs, while a petite bite-sized piece would have fewer.

  • Dietary or Low-Carb Brownies: There are recipes specifically designed for low-carb or keto diets. These brownies might use sugar substitutes and alternative flours, significantly reducing their carb content.

  • Packaged Brownies: If you're buying a pre-packaged brownie, always check the nutritional information on the label. Manufacturers are required to provide detailed nutritional data, including total carbohydrates and sugars, per serving.

So, while the classic chocolate brownie isn't exactly low in carbohydrates, variations cater to those monitoring their carb intake.

As with any treat, moderation is key.

And if you're following specific dietary requirements, it's always a good idea to check the nutritional information or make them at home, tailoring the ingredients to your preferences.

Nutrients in a Chocolate Brownie

Nutritional Chart: Chocolate Brownie (per standard 60g slice):

Nutrient Amount
Total Carbohydrates 30g-40g
- Of which Sugars 15g-25g
Protein 2g-4g
Total Fat 8g-12g
- Saturated Fat 3g-6g
Fibre 1g-2g
Sodium 50mg-100mg
Cholesterol 20mg-35mg
Calcium 20mg-40mg
Iron 1mg-2mg


A typical chocolate brownie is, unquestionably, a treat full of indulgence. Here's a breakdown of the nutrients based on the above chart:

  • Total Carbohydrates: Constituting the primary calorie source in a brownie, carbs range from 30g to 40g. This includes sugars, which provide the sweetness and can range from 15g to 25g.

  • Protein: Brownies aren't known for their protein content, but they do offer a modest 2g to 4g, primarily from the eggs and any nuts that might be added.

  • Total Fat: This can range from 8g to 12g. Fats contribute to the rich, dense texture of brownies, with a significant portion being saturated fats, deriving from butter or other fats used in baking.

  • Fibre: Although brownies are not a significant source of fibre, they do contain between 1g to 2g, possibly more if they contain ingredients like nuts or cocoa powder.

  • Sodium: Depending on the amount of baking powder, baking soda, or salt used in the recipe, the sodium content can vary between 50mg to 100mg.

  • Cholesterol: Primarily coming from ingredients like eggs and butter, cholesterol content can range from 20mg to 35mg.

  • Calcium & Iron: These minerals are present in small amounts in a brownie, deriving from ingredients like chocolate, cocoa powder, and any added nuts.

In essence, while a chocolate brownie is a delightful treat, it's worth noting its nutritional profile.

Moderation is key, and for those monitoring specific nutrients, homemade versions can be tailored to suit dietary needs.

Whether enjoyed occasionally or as part of a balanced diet, there's no denying the pleasure a slice of brownie brings to the palate!

Recipe for a Low Carb Chocolate Brownie

Indulge in a rich and chocolaty treat without the guilt!

These homemade low-carb brownies are perfect for those watching their carb intake, whether you're on a keto diet or just aiming for healthier choices.


  • 150g unsalted butter.
  • 150g dark chocolate (at least 55% cocoa).
  • 3 large eggs.
  • 100g erythritol or another preferred low-carb sweetener.
  • 50g ground almonds or almond flour.
  • 1 tsp vanilla extract.
  • A pinch of salt.
  • 1/2 tsp baking powder (gluten-free if necessary).
  • Optional: 50g walnuts or pecans, roughly chopped for added texture and nutrition.


  • Preparation: Preheat your oven to 180°C (160°C fan-assisted or Gas Mark 4). Line an 8-inch square baking tin with parchment paper or grease it lightly.

  • Chocolate & Butter Melting: In a heatproof bowl, break the dark chocolate into pieces and add the butter. Melt them together using a microwave in 20-second bursts, stirring in between, or over a pan of simmering water (double boiler method).

  • Mix Wet Ingredients: In another bowl, whisk the eggs, vanilla extract, and erythritol (or your chosen low-carb sweetener) together until smooth and slightly frothy.

  • Combine: Gradually pour the melted chocolate and butter mixture into the egg mix, stirring continuously to ensure the eggs don't scramble from the heat.

  • Dry Ingredients: Gently fold in the ground almonds or almond flour, baking powder, and a pinch of salt until well combined. If you're using nuts, stir them in now.

  • Bake: Pour the batter into the prepared tin, smoothing out the top with a spatula. Bake in the preheated oven for 18-20 minutes. The brownies should still be soft in the middle, so a toothpick inserted will not come out completely clean.

  • Cool & Serve: Remove from the oven and let them cool in the tin for about 15 minutes. Transfer to a wire rack and let them cool completely. Slice into squares and enjoy!

These low-carb brownies offer a guilt-free alternative to traditional recipes without compromising on taste.

Pair with a cuppa for a delightful afternoon treat!

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Some Notes From an Expert Chocolatier

Navigating the world of chocolates and sweet treats, especially as an expert chocolatier, has given me profound insights into the intricate relationship between taste and nutrition.

When indulging in or crafting these delectable items, it's essential to be mindful of their carbohydrate content and nutritional impact.

Let me share a few thoughts from my years in the chocolate world:

  • The Darker, The Better: Dark chocolate, especially those with a cocoa content above 55%, typically contains fewer sugars and carbs than its milk or white chocolate counterparts. Additionally, it's richer in antioxidants and essential minerals. When crafting or choosing a brownie or a chocolate treat, opting for dark chocolate not only offers a robust flavour but also a healthier profile.

  • Natural Sweeteners: Over the years, I've experimented with various sweeteners. While sugar is traditional, there are alternatives like erythritol, stevia, and monk fruit that can significantly reduce the carb count without compromising on the sweetness.

  • Nut Flour Over Refined Flour: When we discuss chocolate brownies and other baked treats, the type of flour used is pivotal. Nut flours, like almond or hazelnut flour, are not only lower in carbs but also impart a delightful nutty undertone to your treats.

  • Mindful Additions: Ingredients like nuts, seeds, and berries can be wonderful additions to chocolate creations. They not only add texture and flavour but also bring down the net carb count due to their fibre content.

  • Portion Control: One of the most significant lessons I've learned is that moderation is key. Savouring a smaller, well-crafted piece of chocolate brownie can be more satisfying than indulging in a larger, overly sweet portion.

  • Transparency in Labelling: If you're purchasing rather than making, always read labels. It's essential to understand the carb content and source of those carbs. Look for products that are upfront about their ingredients and nutritional values.

  • Balanced Pairings: Pairing your sweet treats with low-carb beverages or foods can balance out the meal. For instance, a piece of dark chocolate brownie paired with a cup of unsweetened green tea or black coffee can be both satisfying and balanced.

  • Educate and Enjoy: As an informed consumer or chocolatier, educate yourself about the effects of carbs and sugars. Knowledge allows for informed choices, ensuring that indulgence doesn't come at the expense of health.

Carbs in sweet treats, especially in delicacies like chocolate brownies, should be approached with mindfulness.

By making sensible decisions, one can enjoy the pleasures of chocolate without excessive carb intake.

After all, the true art of chocolatiering lies in crafting delights that are as good for the soul as they are for the body.

Final Notes On Carbs in Chocolate Brownies

Chocolate brownies, a timeless indulgence, have become emblematic of the balance between pleasure and nutritional mindfulness.

When it comes to carbs in these treats, the takeaway is clear: knowledge empowers.

Understanding the source and amount of carbs in your brownies allows for informed choices, ensuring that pleasure doesn't overshadow well-being.

Opting for ingredients like dark chocolate, natural sweeteners, and nut flours can transform a classic brownie into a treat that's both delicious and lower in carbs.

However, moderation remains essential.

Savouring a brownie, even a low-carb version, should be an occasional delight rather than a daily occurrence.

In the end, the joy of a chocolate brownie lies not just in its taste but also in the satisfaction of knowing it's made with care and consideration for one's health.