#fat-soluble_vitamin__fatsolublevitamin  any vitamin that is soluble in fats
  supertype:  vitamin  any of a group of organic substances essential in small quantities to normal metabolism
  subtype:  vitamin_A__antiophthalmic_factor__axerophthol__A  any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
     subtype:  vitamin_A1__retinol  an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene
     subtype:  vitamin_A2__dehydroretinol  a viscous alcohol that is less active in mammals than is vitamin A1
  subtype:  vitamin_D__vitamind__calciferol__viosterol__ergocalciferol__cholecarciferol__d  a fat-soluble vitamin that prevents rickets
  subtype:  vitamin_E__tocopherol__E  a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body
     subtype:  alpha-tocopheral__alphatocopheral  a potent form of vitamin E obtained from germ oils or by synthesis
  subtype:  vitamin_K__naphthoquinone__antihemorrhagic_factor__antihemorrhagicfactor  a fat-soluble vitamin that helps in the clotting of blood
     subtype:  vitamin_K1__phylloquinone  a form of vitamin K
     subtype:  vitamin_K3__menadione  a form of vitamin K

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