Croissant glycemic index
Croissant has a glycemic index of 56, which is medium. A 60 g serving (1 croissant) has a glycemic load of 15 (medium).
- Serving60 g
- Available carbs26 g
- Fiber1.6 g
- Sugars6.8 g
- Protein4.9 g
- Calories244 kcal
Serving: 1 croissant.
What to know
Croissants have a medium GI because their butter slows digestion, but they are high in saturated fat and calories. A lower GI here is not a sign of a healthy choice.
Glycemic load by portion size
GI stays the same whatever you eat, but glycemic load scales with the amount: eating twice as much doubles the effect on blood sugar.
| Amount | Available carbs | Glycemic load | |
|---|---|---|---|
| 50 g | 22 g | 12 | Medium |
| 100 g | 43 g | 24 | High |
| 60 g · 1 croissant | 26 g | 15 | Medium |
| 120 g · double serving | 52 g | 29 | High |
What the studies found
The value of 56 is the mean calculated by the authors of the International Tables of Glycemic Index (2021) across 4 studies. Results are fairly consistent (45 to 68).
Each dot is one study. Green dots followed the ISO 26642 standard method.
- 45 · Australia 2013
- 65 · Oman 2020
- 67 · Oman 2020
- 68 · Canada 1992
Croissant compared with other bread & bakery
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Frequently asked questions
Is croissant low glycemic?
No. With a GI of 56, croissant is in the medium range (56 to 69). Low GI is 55 or less.
What is the glycemic load of croissant?
A 60 g serving (1 croissant) has a glycemic load of 15, which is medium. Glycemic load combines GI with the amount of carbohydrate in the portion: 10 or less is low, 11 to 19 medium and 20 or more high.
Can people with diabetes eat croissant?
With a GI of 56 and a medium glycemic load per serving, croissant can be part of a diabetes-friendly diet with attention to portion size and pairing it with protein, fat or fiber. Everyone responds differently, so talk to your doctor or dietitian about your plan.
How many carbs are in croissant?
A 60 g serving has about 27 g of total carbohydrate, including 1.6 g of fiber, leaving 25.9 g of available carbohydrate (the part that raises blood sugar). Per 100 g: 45.8 g of carbohydrate.
Nutrition facts
| per 100 g | Serving (60 g) | |
|---|---|---|
| Calories | 406 kcal | 244 kcal |
| Carbohydrates | 46 g | 27 g |
| Available carbs | 43 g | 26 g |
| Fiber | 2.6 g | 1.6 g |
| Sugars | 11 g | 6.8 g |
| Protein | 8.2 g | 4.9 g |
| Fat | 21 g | 13 g |
Source: USDA FoodData Central, Croissants, butter (SR Legacy, FDC 174987). Available carbohydrate = total carbohydrate minus fiber.
Sources: Atkinson FS, Brand-Miller JC, Foster-Powell K, Buyken AE, Goletzke J. International tables of glycemic index and glycemic load values 2021: a systematic review. Am J Clin Nutr. 2021;114(5):1625–1632. USDA FoodData Central. How we calculate each value: Methodology & sources.
Data last reviewed 2026-09-29.