View full-size photo · Photo: Open Food Facts contributors, CC BY-SA
Opera
Opera by Thiriet provides 378 kcal per 100 g, with 26.4 g of sugars and 4.5 g of protein. Its Nutri-Score is E. It is listed in the Opera cake category and comes in a 500 g pack.
Nutrient levels per 100 g
Levels use UK front-of-pack reference thresholds.
Nutrition facts
| Nutrient | Per 100 g | Category avg |
|---|---|---|
| Calories | 378 kcal | 352 +7% |
| Total fat | 25.2 g | 22.8 +11% |
| Saturated fat | 15.4 g | 12.4 +24% |
| Carbohydrates | 32.2 g | 30.8 |
| Total sugars | 26.4 g | 25 +6% |
| Protein | 4.5 g | 4.6 |
| Salt | 0.1 g | 0.2 −28% |
*% Daily Value for 100 g, based on a 2,000-calorie diet (FDA reference values). Category average across 7 Opera cake products on Foodmetria.
Compared with other opera cake
Bar shows the share of products in this category that contain less of the nutrient.
Product details
- Quantity
- 500 g
- Sold in
- France
- Barcode
- 3292590896324
Prices reported by shoppers
Loading prices…
Frequently asked questions
How many calories are in Opera?
Opera contains 378 kcal per 100 g.
How much sugar is in Opera?
Opera has 26.4 g of sugars per 100 g, which is considered high by UK front-of-pack guidelines.
Is Opera healthy?
It has a Nutri-Score of E (A is best, E is worst). Scores describe nutritional quality and processing, not suitability for your individual diet.
Source: Open Food Facts (ODbL). Last updated March 23, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.
Reviews
Compare & rankings
Healthier alternatives
Best in category →Same category, meaningfully better on at least one measure and no worse on the others. Each card shows what improves.
More opera cake
View all →
e NOVA 4 
e 
e 
d 
More from Thiriet
View all →
d NOVA 4 
b NOVA 4 
c NOVA 4 
a NOVA 4 
c NOVA 4 
e NOVA 4