There is no such thing as whether eggs or duck eggs are better. The taste and nutrient content of the two are different.
Eggs and duck eggs are rich in nutrients. Every 100g of eggs contains 13.3g of protein, 8.8g of fat, 56mg of calcium and vitamin A, sodium, potassium and other nutrients. Duck eggs contain 12.6g of protein, 13g of fat, 62mg of calcium as well as vitamin A, potassium, magnesium and other nutrients per 100g.
Both can be a good source of protein and calcium, and moderate consumption can supplement protein, calcium and other nutrients.
Eggs and duck eggs are relatively similar in nutrient content, but there are differences in content, with eggs having a higher protein content and duck eggs having a higher fat and calcium content. Eggs are higher in protein and duck eggs are higher in fat and calcium. There is no difference between the two, so you can consume them in moderation according to your own preferences.