1 piece (medium) of Croissant (55 g) has 223 calories. That works out to 406 calories per 100 g. It contains 25.1 g of carbs, 4.5 g of protein, 11.9 g of fat and 1.3 g of fiber. Its 6.1 µg of Selenium covers 11% of the Daily Value. Its glycemic index is 67 (high), so it raises blood sugar quickly.

What is Croissant?

A croissant is a crescent-shaped, yeasted pastry made by folding butter into dough in repeated layers. Closely associated with French baking, it emerges from the oven crisp and flaky outside, with a tender, airy centre. Its delicate layers are best enjoyed fresh, when they pull apart easily.

In France, it is a familiar breakfast pastry, often served with coffee; elsewhere, it is also a popular choice in cafés or for a quick breakfast. Croissants are rich in carbohydrates and fat, with 406 calories per 100 g. For a more filling meal, pair one with fruit and yogurt or eggs rather than adding another pastry.

Croissant Nutrition Facts

Selected: 100 g

406

KCAL / 100G

Carbs

45.6g

· 17% DV

Protein

8.2g

· 16% DV

Fat

21.6g

· 28% DV

Fiber

2.4g

· 9% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 45% · Protein 8% · Fat 47%

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Croissant Vitamins & Minerals

Vitamins

0.22mg · 17% DV

0.18mg · 15% DV

Vitamin A

120µg · 13% DV

2.1mg · 13% DV

Minerals

Selenium

11µg · 20% DV

Sodium

370mg · 16% DV

Phosphorus

95mg · 14% DV

Iron

2mg · 11% DV

Potassium ⭐

110mg · 3% DV

How Nutritious Is Croissant?

Nutrient density

Low

22/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Low

24/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Croissant Glycemic Index

GLYCEMIC INDEX

High

0 Low5570100

GLYCEMIC LOAD

High

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Croissant

To burn the 406 calories in 100 g:

🚶

100min

Walking (5 km/h)

🏃

41min

Running (8 km/h)

🚴

55min

Cycling

🏊

47min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Croissant Processed?

NOVA 3

Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Croissant Contain Allergens?

Contains these allergens:

Gluten yes

Dairy yes

Eggs yes

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Croissant Good For?

Vegan

— Not suitable

Vegetarian

— Not suitable

Gluten-Free

— Not suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Croissant Fat Profile

SATURATED

13.2g

MONOUNSATURATED

5.8g

POLYUNSATURATED

1.3g

⚖️

Omega 6:3 ratio 17.1:1

Above the ideal 4:1 (17.1:1).

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Frequently Asked Questions About Croissant

How do you pronounce croissant?

Croissant is commonly pronounced “kwah-SAHN” in English, with the final “t” silent. English speakers may also use a pronunciation closer to the French “krwa-sahn.” Both are widely understood when ordering the pastry.

What is a croissant made of?

A classic croissant is made from flour, water or milk, yeast, salt, a little sugar, and butter. The dough is folded around butter repeatedly, then shaped, proofed, and baked to create its crisp, layered texture.

Why are croissants crescent-shaped?

Croissants are often crescent-shaped because the form recalls the crescent-shaped Austrian kipferl, a pastry associated with the croissant’s origins. Many French bakeries also make straight croissants, often using shape to distinguish butter croissants from versions made with other fats.

Is a croissant French or Austrian?

The croissant is a French pastry with roots in the Austrian kipferl. French bakers developed the laminated, buttery dough that defines the modern croissant, so its history spans both culinary traditions rather than belonging neatly to just one.

What is the difference between a croissant and a crescent roll?

A croissant is made by laminating dough with layers of butter, which gives it a flaky, open crumb. A crescent roll is usually a softer, breadier dough that may contain fat but is not folded into the same distinct layers.

How do you keep croissants fresh overnight?

Keep croissants at room temperature in an airtight container or bag overnight. Avoid refrigerating them, because the cold can make the pastry stale faster. For a crisp exterior the next day, warm the croissant briefly in an oven before serving.

Can you freeze croissants, and how do you thaw them?

Yes, croissants freeze well. Freeze them once fully cool in a sealed freezer bag, then thaw at room temperature or warm them in the oven from frozen. A short oven reheat helps bring back the flaky exterior better than a microwave.

How do you make a croissant crispy again?

Warm the croissant in an oven for a few minutes to refresh its crisp outer layers. A microwave heats it quickly but tends to make the pastry soft and chewy. Keep an eye on it so the buttery layers do not over-brown.

What do you eat with a croissant?

Croissants pair well with coffee, tea, jam, or fruit for breakfast; savory fillings such as eggs, cheese, and ham also work well. Their buttery flavor suits both sweet and savory accompaniments, so serve them plain or split and filled.

Can you make a sandwich with a croissant?

Yes, croissants make good sandwiches when split horizontally and filled with ingredients that are not too wet. Eggs, cheese, ham, or smoked salmon are common choices. Add moist fillings shortly before serving to help keep the flaky pastry from turning soggy.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026