Vitamin-D which is a fat-soluble vitamin is closely related to Osteoporosis.
Osteoporosis is a disease related to the bone, in which bones lose their density due to which the bones weaken and become prone to breakage.
The deficiency of Vitamin-D can be compensated by the intake of cod liver oils, cheese, egg yolks, and mushrooms as well as body also absorbs it from exposure to Sunlight.
The deficiency of Vitamin-A leads a person to Nightblindness & Xeropthalmia which is common in Africa and South-Asia and this deficiency could be fulfilled by the intake of the Beef liver, Spinach, Black-eyed pea, Brocolli, and various others.
The deficiency of Vitamin-B causes Beri-Beri and this deficiency could be fulfilled by the intake of meat, fish, whole grains, nuts, cereals, and others.
The deficiency of Vitamin-C causes Scurvy and this deficiency could be fulfilled by the intake of citrus fruits like kiwi, orange, lemon, guava as well as broccoli, and cauliflower.