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Vitamins - Fat Soluble (Vitamin A (Functions (Proper development of cells,…
Vitamins - Fat Soluble
Vitamin A
Food Sources
Animal: Retinoids
Plants: Caratenoids
Functions
Proper development of cells
Maintenance of vision
Antioxidant behaviour
Reproduction & growth
Deficiency
Night blindness
Blindness
Susceptibility to Infections
Toxicity
Causes bone defects
Causes birth defects
Vitamin D
Food Sources
Animal sources
Function
Bone growth
Deficiency
Children: Rickets
Adults: Osteomalacia
High risk - elderly
Toxicity
Over-absorption of calcium
Vitamin E
Food Sources
Widespread in plants and animals
Function
Antioxidant
Maintain membrane integrity
Complementary roles
Deficiency
Haemolytic anaemia
Toxicity
Inhibit Vit K role in clotting mechanism
Vitamin K
Functions
Blood clotting
Bone mineralisation
Food Sources
Plant sources
Oils & margarine
Deficiency
Haemorrhage
Toxicity
Rare: readily excreted