4. Vitamin D helps to absorb calcium
If you offer a person the choice of drinking a spoonful of fish oil or eating a boiled egg, the clear majority will prefer the latter. Especially if they find out that the content of vitamin D is the same in both cases. Moreover, scientists found a way to increase the amount of vitamin D content in eggs by feeding chickens special supplements. Vitamin D helps calcium better absorb and strengthen your bones and teeth.