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Published byEricka Jeffreys Modified over 10 years ago
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Vitamin K (napthoquinones) Menaquinone- Bacteria present in the intestine Phylloquinones- Plant sources e,g, spinach, cabbage Menadione-synthetic vitamin K
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Vitamin K - Napthoquinones Functions Constituent of prothrombin which is necessary in blood clotting Helps maintain calcium levels in bones Effects of deficiency Abnormal clotting, bleeding. Deficiency is rare
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Vitamin K - Napthoquinones Sources Dark green vegetables Liver Lean meat Eggs Manufactured by bacteria in intestine
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Vitamin K - Napthoquinones Properties Fat soluble Insoluble in water Stable to heat, unaffected by cooking Destroyed by light, strong acids, alkalis RDA No definite RDA
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