In Jainism, many followers avoid cheese and other dairy products because of ahimsa (non-violence) toward animals and because dairy production involves animal suffering in many contexts. Here are the key points:

• Cheese generally comes from milk, and many Jains prefer to avoid all milk products as a precaution against harm to cows and calves.
• A major practical concern is that traditional rennet (used to curdle milk in many cheeses) is derived from animal sources, which makes such cheeses incompatible for many Jains. Some cheeses use vegetarian or microbial rennet, but these are not always clearly labeled, and practices vary.
• Some Jains distinguish between dairy that is produced with non-violent, carefully managed methods and dairy that involves exploitation or cruelty. Even so, many choose to avoid dairy entirely as a simplification of ahimsa in daily life.
• There is variation between Digambar and Shwetambar communities. Digambar generally adopts stricter rules and many avoid dairy altogether, while some Shwetambar Jains may consume dairy products produced in ways they consider non-harmful. However, the common conservative stance is to avoid dairy and cheese.

Bottom line: if you are following a strict Jain practice, cheese is usually avoided. If you are unsure, consult your local Jain guru or community guidelines, and check whether the cheese you buy uses vegetarian rennet and is produced in a cruelty-free, Jain-acceptable manner.