1, Bai Bei is a white shell; The shell of the flower nail has patterns and patterns. 2. Bai Bei is heavy and contains a lot of calcium carbonate; The flower shell is thin, so there are few minerals such as calcium carbonate. 3, the flower armor is delicious and rich in minerals and vitamins such as iodine, calcium, phosphorus and iron; White shells are heavier than meat. The difference between white shell and flower shell Bai Bei is a kind of white flower shell, also known as clam, and its nutritional components are basically the same. Clam meat is rich in nutritional value. 100g clam meat contains protein 10g, fat 1.2g, carbohydrate 2.5g, and various minerals and vitamins such as iodine, calcium, phosphorus and iron, while clam shell contains calcium carbonate, calcium phosphate, magnesium silicate, iodine and bromide. Flower armor is delicious, known as "the freshest in the world" and "the crown of all kinds of flavors", with comprehensive nutrition. It contains protein, fat, carbohydrate, iron, calcium, phosphorus, iodine, vitamins, amino acids, taurine and other ingredients, with low heat energy, high protein and low fat. It can prevent and treat chronic diseases of middle-aged and elderly people, so it is a cheap seafood.