Salted duck egg yolk is rich in lutein and zeatin, both of which belong to carotene, and carotene can maintain normal visual function, because carotene is a component of photosensitive substances in visual cells, and proper eating of carotene can improve vision, especially dark vision. 2 prevention of iron deficiency anemia

Duck egg yolk is rich in iron ions, and iron ions can promote the composition of hemoglobin in the body, thus achieving the effect of enriching blood. It is very suitable for people with anemia. Eating salted duck egg yolk often can also prevent iron deficiency anemia, but it should not be eaten excessively. Ordinary people can eat 1-2 egg yolks a day. 3 Anti-aging

Salted duck egg yolk contains antioxidant components such as vitamin A, vitamin B2, selenium and zinc. After eating, these antioxidant components can help remove free radicals in the body, thus protecting the skin and delaying aging. 4 puzzle and brain tonic

salted duck egg yolk is rich in lecithin, which will release a choline component after being digested by the body, which can be transmitted to the brain through blood, thus helping to enhance memory, play the role of puzzle and brain tonic, and can also help prevent Alzheimer's disease if eaten regularly.