You will be surprised when you will get to know the benefits, an egg has in it.
An egg contains:
1- Vitamin A around 6% of RDA
2- Vitamin B5 around 7% of RDA
3- Vitamin B12 around 9% of RDA
4- Vitamin B2 around 15% of RDA
5- Phosphorus around 9% of the RDA
6- Selenium around 22% of the RDA
Eggs also contain decent amounts of Vitamin D, Vitamin E, Vitamin K, Vitamin B6, Calcium and Zinc so it is a very good habit to eat atleast one egg daily.