Understanding Vegetarianism and Cheese
Not all vegetarian diets are the same, and the term can encompass several different practices regarding the consumption of animal byproducts. The most common type is a lacto-ovo-vegetarian diet, which excludes meat, poultry, and fish but includes dairy products (lacto) and eggs (ovo). For individuals following this path, cheese is generally a staple and an accepted part of their diet. However, for a smaller subset of strict vegetarians, the decision to eat cheese can be more complex due to a key ingredient used in the cheesemaking process: rennet. Vegans, who avoid all animal products including dairy, do not eat traditional cheese, opting instead for plant-based alternatives.
The Role of Rennet: The Decisive Factor
Rennet is a complex set of enzymes that causes milk to coagulate and separate into solid curds and liquid whey. While many mass-produced cheeses today use microbial or plant-based rennet, traditional cheesemaking practices have long relied on animal rennet, which is extracted from the stomach lining of young calves. For vegetarians who choose their diet for ethical reasons related to animal welfare, consuming a product that relies on the slaughter of an animal is a non-starter.
For this reason, a vegetarian must be diligent when selecting cheese. Soft cheeses like cottage cheese, cream cheese, and paneer are typically made using an acid (such as lemon juice or vinegar) instead of rennet, making them a safe bet. However, many hard and artisanal cheeses still use animal rennet, and labels can sometimes be vague.
How to Identify Vegetarian-Friendly Cheese
- Read Labels Carefully: Look for labels that explicitly state "vegetarian rennet," "microbial rennet," or simply "suitable for vegetarians". If the label only says "enzymes" without further clarification, it's best to be cautious, as this could refer to animal-based rennet.
- Consider Cheese Type: Familiarize yourself with cheeses that are less likely to contain animal rennet. Soft, fresh cheeses like ricotta, mozzarella (though some traditional versions may use rennet), and paneer are often safer choices. Many mass-produced cheddar varieties also use microbial rennet.
- Avoid Tradition-Bound Cheeses: Some European cheeses, particularly those with a protected designation of origin (like Parmigiano Reggiano), are legally required to use animal rennet and are therefore not vegetarian.
- Consult the Cheesemonger: If you're purchasing from a specialty cheese shop, the staff can provide specific information about which cheeses are made with microbial or plant-based rennet.
Vegetarian vs. Vegan Cheese Options
For those who wish to avoid all dairy, the market for plant-based cheese has expanded significantly. Many restaurants now offer vegan cheese for pizza, made from ingredients like cashews, soy, and coconut oil. These alternatives are suitable for both vegans and any vegetarian who prefers to avoid dairy altogether. In a taste test, some of these vegan options have even been rated as high-quality choices for pizza.
Comparison of Common Pizza Cheeses
| Cheese Type | Vegetarian Status (Often) | Rennet Used (Typically) | Melts Well on Pizza? | 
|---|---|---|---|
| Mozzarella (Mass-Produced) | Usually Yes | Microbial | Yes | 
| Parmigiano Reggiano | No | Animal | Yes | 
| Ricotta | Yes | Acid (No Rennet) | Yes (Creamy, less 'melty') | 
| Feta | Mixed | Microbial or Animal | Yes (Crumbles) | 
| Vegan Mozzarella | Yes | N/A (Plant-Based) | Depends on Brand | 
| Cheddar (Mass-Produced) | Usually Yes | Microbial | Yes | 
Making an Informed Decision
Ultimately, whether a vegetarian eats cheese on pizza comes down to personal interpretation and ethical boundaries. For many lacto-ovo-vegetarians, the issue of rennet is not a major concern, but for those who strictly avoid any product requiring the death of an animal, it is a crucial detail. The rise of clear labeling and widely available vegetarian rennet cheeses means that enjoying a cheesy pizza without compromising one's values is now easier than ever. Simply being aware of the ingredients and asking the right questions can help any vegetarian make a confident and compassionate choice.
Conclusion
While the simple answer to whether do vegetarians eat cheese on pizza is yes, the full picture is more nuanced. The type of cheese and the method of its production are key. Lacto-ovo-vegetarians generally consume cheese, but need to be mindful of animal rennet, an enzyme derived from slaughtered animals used in some traditional cheesemaking. By checking labels for microbial or vegetable rennet, or opting for naturally rennet-free soft cheeses, vegetarians can navigate the complexities of their diet. With the expanding availability of high-quality vegan cheeses, delicious pizza remains a culinary pleasure accessible to everyone, regardless of their dietary principles.