Parmigiano Reggiano
The undisputed Italian "king of cheeses" (Parmigiano Reggiano PDO): a hard cheese patiently aged for two full years until natural glutamic acid and crunchy calcium crystals form. Its net carbohydrate is zero, so a glycemic index does not apply, and it is a concentrated source of protein that delivers energy and bold flavour with no effect on blood sugar.
Glycemic index
Glycemic load
Calories
Protein
💡 Smart Nutritional Guidance
Consumption advice
Grate a tablespoon over pasta, soups and leafy salads; its fat and protein slow the absorption of the meal's starch and give an immediate sense of fullness and satisfaction.
Best preparation methods
Eat it at room temperature, shaved into thin flakes with a little traditional balsamic vinegar, and keep the hard Parmesan rind to simmer in soups for a deep umami flavour.
Important Nutritional Note
Ageing for 24 months breaks down the milk sugar completely, so it is entirely lactose-free and a rich, easily digested source of calcium for everyone.
Nutrition facts
| Nutrient | Per 100 g | Per typical portion (15 g) |
|---|---|---|
| Calories | 431 kcal | 64.6 kcal |
| Protein | 38 g | 5.7 g |
| Carbohydrate | 4.1 g | 0.6 g |
| Available carbohydrate | 4.1 g | 0.6 g |
| Fat | 29 g | 4.3 g |
| Dietary fibre | 0 g | 0 g |
The typical portion is approximate, for comparison purposes.
Comparison & smarter alternatives
It provides 8.8 g of protein per 100 kcal, ranking 6 of 25 in Dairy & cheese (highest first).
Related foods from the same family:
Frequently asked questions
Is Parmigiano Reggiano good for weight loss?
Parmigiano Reggiano provides 431 kcal per 100 g, so it is high in calories and fits a weight-loss plan only in small, measured amounts; a 15 g portion gives 65 kcal.
How does Parmigiano Reggiano affect blood sugar?
Parmigiano Reggiano contains only 4.1 g of available carbohydrate per 100 g, so the glycemic index does not apply and its direct effect on blood sugar is minimal. The meal’s effect depends on what you eat with it, such as bread, rice or sweetened sauces.
What is the nutritional value of a typical portion of Parmigiano Reggiano?
A typical 15 g portion of Parmigiano Reggiano provides about 65 kcal, 5.7 g protein, 0.6 g carbohydrate, 4.3 g fat and 0 g fibre.
Reviewed by the WiBo Health medical team · Last reviewed 13 October 2026
Disclaimer: This guidance is for nutritional lifestyle orientation and does not constitute a diagnostic medical device under EU Regulation MDR 2017/745.