For every 100 grams of duck eggs there is 161 kcal of food energy. And chicken eggs have 163 kcal. Meat contains 13.5 grams and the same amount of chicken eggs 13.3 grams. And duck egg fat 13.6 grams , chicken egg fat 13.3 grams. 100 grams of duck eggs contain 60 mg of calcium , 3 mg of iron and 269 micrograms of vitamin A. On the other hand, chicken eggs contain 60 mg of calcium , 2.1 mg of iron and 299 micrograms of vitamin A. By comparison , duck eggs contain slightly more nutrients , carbs, fats, sugars , iron , and calcium than chicken eggs. And chicken eggs contain slightly more vitamin A and vitamin B2 than duck eggs. In terms of hair, duck eggs can be said to be more nutritious.