They have many ...
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Olives (one 100g serving) contain Vitamin E and Vitamin K. They also contain Vitamin A and a bit of C.
Vitamin A is a fat soluble vitamin that is essential for eye health. Not having enough may cause night blindness.
Vitamin C, also called ascorbic acid, is water soluble and is said to be good for your immune system. If you don't have enough you may develop scurvy and have other problems like wound healing.
Vitamin K is a fat soluble vitamin that is essential for blood clotting. As you may have guessed having a definciency may lead to problems with bleeding.
Vitamin-e, is good for bone and blood health, along with being good for vision and the immune system so it would be a great addition to a healthy diet to include olives.
Eat and be healthy.
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