Sour-milk cheeses are a type of cheese that is made from milk that has been allowed to sour. The cheese has a tangy, slightly sour taste and is often used in cooking or eaten on its own. Some synonyms for sour-milk cheeses include curd cheese, cottage cheese, and quark cheese. These cheeses are typically high in protein and low in fat, making them a healthy choice for those who are looking to reduce their calorie intake. They are also rich in calcium, making them a great choice for those who are looking to build strong bones and teeth. Overall, sour-milk cheeses are a versatile and tasty addition to any diet.