As the name implies, "black-bone eggs" are eggs laid by black-bone chickens. Compared with ordinary eggs, it belongs to rare varieties of eggs.

It is also based on the test data of black eggs and ordinary eggs in China Food Composition Table:

Compared with ordinary eggs, the contents of carbohydrates, vitamin E, vitamin B2, iron, zinc and selenium in black-bone eggs are slightly higher, while the contents of nicotinic acid are slightly lower, and the differences of other nutrients (such as protein, fat, vitamin B 1, calcium) are not great.

It can be seen that black eggs and ordinary eggs are similar in nutrition.