100g has 1 sea urchin because 100g is the weight of a sea urchin. Sea urchins contain gonads, which are orange and delicious, accounting for 8% ~ 15% of the total weight of sea urchins. Every 100g fresh sea urchin contains 4 1g protein and 32.7g fat. It also contains vitamins A and D, various amino acids and nutrients such as phosphorus, iron and calcium. It is delicious and nutritious. Sea urchin yellow pigment contains 17 kinds of amino acids, which is not only of good quality, but also of large quantity. Every gram of sea urchin contains 20g of protein, which is almost twice as much as chicken, lean meat, fish and egg products.