Vitamin D is different than the other types of vitamins, since it is a fat-soluble vitamin. The reason it is different is because the human body can make most of this vitamin as per the need with exposure to sunlight. Vitamin D is known to act as a pro-hormone, since it has an effect on the balancing of the hormones along with regulation of the immune system in the body.
Below are the foods that are rich sources of vitamin D
Salmon
Eggs yolk
Orange Juice
Cheese
Whole milk
Tuna