The difference between sea duck eggs and duck eggs is as follows:1. The duck breeds that lay eggs are not the same: duck eggs are the eggs of domestic ducks, which can hatch into ducklings. Sun-dried duck egg cover is ducks eating grass on the beach to lay eggs, foraging for fish, shrimp, shellfish, algae on the beach.2. Distribution areas are different: sea duck eggs are eggs produced by sea ducks farmed on the beaches of coastal areas such as Zhanjiang, Guangdong, Fangchenggang, Beihai, Qinzhou, Weihai, Taishan and other coastal areas. They are the national mangrove reserve in Bei Ze Bay of the South China Sea.3. Nutritional composition is different: duck eggs mainly contain protein, fat, calcium, phosphorus, iron, potassium, sodium, chlorine and other nutrients. Each 100 grams of sea duck eggs contain 4056 mg of lecithin, protein 12.84 grams, the total number of essential 18 amino acids up to 11.53 grams, but also contains calcium, phosphorus, iron, zinc, iodine, magnesium, potassium, selenium and other beneficial trace elements and more than 10 kinds of vitamins.4. Different groups of people: duck eggs are sweet and cool, nourishing yin and clearing the lungs, suitable for post-disease body weakness, dry throat, sore throat patients. Duck eggs have unclogged blood vessels, enhance memory, prevention of Alzheimer's disease, young and old.