About Blue cheese 

Blue cheese is a type of cheese that has spots or veins throughout the cheese in shades of blue or green. It has a strong, salty flavor and is made from cultures of the edible mold Penicillium.

Blue cheese is a great source of protein. Researchers also believe that the fat in certain dairy products, such as blue cheese, may have a neutral or even positive effect on cardiovascular health. Blue  is also an excellent source of calcium.

Yes, blue cheese is made with mold. Some people find this concerning (some even go so far as to describe it as tasting like feet) despite the fact that this particular mold is not only safe for human consumption but might even be healthy.