Concept:Scurvy results from a long-term lack of vitamin C in the diet.Explanation:Vitamin C is needed to form collagen and cartilage. Without it, symptoms like anaemia, bleeding gums, skin bruises, and swollen joints appear.Treatment involves eating citrus fruits or taking vitamin C supplements.The table below shows sources, deficiency diseases, and functions of related vitamins.
Vitamin
sources
Disease concerned with deficiency
Function
Vitamin K
Carrots, Lettuce, cabbage etc.
Haemorrhages and inability to form blood clots
Produces prothrombin essential for blood clotting.
Vitamin C
Citrus fruits.
Scurvy
essential for the formation of collagen and cartilage.
Vitamin A
Fish oil, Synthesised in liver and intestine.
Night Blindness
synthesis of visual pigments.
Vitamin D
Synthesised by our skin cells in the presence of sunlight.
Rickets
Absorption of calcium and phosphorous from the diet.