The Highest-Protein Cheeses per 100g
When comparing cheeses by weight, hard, aged cheeses consistently rise to the top for protein density. This is primarily because the aging process reduces the moisture content, concentrating the protein and other nutrients into a smaller, more dense product. Here are some of the leading varieties:
- Parmesan (Parmigiano-Reggiano): Often holding the top spot, Parmesan boasts an impressive protein content of around 35-36 grams per 100g. It is a hard, Italian cheese with a nutty flavor, typically used grated over dishes.
- Pecorino Romano: A hard, salty Italian cheese made from sheep's milk, Pecorino Romano is a close second, with approximately 32 grams of protein per 100g. It offers a sharper, saltier flavor than Parmesan.
- Swiss (Emmental): Known for its mild, nutty flavor and distinct holes, Swiss cheese provides about 28 grams of protein per 100g. It is a versatile cheese that melts well.
- Gruyère: This hard Swiss cheese, aged for six to 24 months, has a rich, salty flavor and provides roughly 28 grams of protein per 100g.
- Provolone: A semi-hard Italian cheese, Provolone typically offers around 25-26 grams of protein per 100g, making it a good choice for sandwiches and other cooked dishes.
The Role of Serving Size: Cottage Cheese and Ricotta
While hard cheeses excel in protein density per 100g, it's also important to consider the typical serving size. Soft cheeses, like cottage cheese and ricotta, have a higher moisture content, but their standard serving size is much larger than the small amount of grated Parmesan one might use. As a result, a half-cup serving can deliver a substantial amount of protein.
- Cottage Cheese: Often praised by fitness enthusiasts, a half-cup of cottage cheese can offer 12 to 14 grams of protein, making it an excellent, low-calorie, and high-protein snack option.
- Ricotta: Similar to cottage cheese, a half-cup of ricotta contains a significant amount of protein, around 14 grams, and is a staple in many Italian recipes.
High-Protein Cheese Comparison
| Cheese | Protein (per 100g) | Typical Serving | Protein (per serving) | Key Notes | 
|---|---|---|---|---|
| Parmesan | ~35.8g | 1 oz (28g) | ~10g | Hard, aged, high in sodium; typically used as a garnish. | 
| Pecorino Romano | ~32.1g | 1 oz (28g) | ~9g | Hard, salty; also used grated. | 
| Swiss (Emmental) | ~28.4g | 1 oz (28g) | ~7.7g | Mild, nutty flavor; melts well. | 
| Provolone | ~25.6g | 1 oz (28g) | ~7g | Semi-hard; good for cooking. | 
| Cheddar | ~25g | 1 oz (28g) | ~6.5g | Versatile, popular; protein varies with aging. | 
| Cottage Cheese | ~11g | ½ cup (113g) | ~12-14g | Soft, creamy; lower in fat and calories. | 
| Ricotta | ~10.1g (part-skim) | ½ cup (124g) | ~14g | Soft; high in calcium. | 
Considerations Beyond Protein Content
When selecting a cheese for its protein content, it's essential to look at the whole nutritional picture. While hard cheeses offer high protein density, they are also typically higher in sodium and saturated fat. Cottage cheese, while lower in protein per 100g, often contains less fat and can be a good source of probiotics depending on the brand. Other factors to consider include:
- Sodium: Cheeses vary widely in sodium content, with hard, brined cheeses often containing more. Those watching their sodium intake should opt for lower-sodium varieties.
- Fat Content: Full-fat versions provide a richer flavor but more calories, while low-fat options can fit better into a calorie-controlled diet. The fat in cheese aids in the absorption of fat-soluble vitamins.
- Digestibility: Aged cheeses like Parmesan contain very little lactose, making them easier to digest for individuals with lactose intolerance.
- Serving Use: Consider how you plan to use the cheese. A small sprinkle of protein-dense Parmesan can elevate a dish, while a scoop of cottage cheese can serve as a satisfying, protein-rich meal on its own.
Conclusion
For the highest protein source per 100g, Parmesan cheese is the clear winner, followed closely by other aged, hard cheeses like Pecorino Romano and Swiss. Their low moisture content concentrates the protein, making them exceptionally dense in this macronutrient. However, when considering a standard serving size, soft cheeses like cottage cheese and ricotta offer a high-protein, lower-fat alternative that is equally effective at contributing to your daily protein intake. Ultimately, the best choice depends on your specific dietary needs and how you plan to incorporate the cheese into your meals.
For a more detailed look at the nutritional profile of Parmesan cheese, see this detailed resource: Parmesan Cheese: Nutrition, Benefits, and Uses.