Vitamin K3

Vitamin K3

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Credit: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY

Caption: Vitamin K3. Polarised light micrograph of vitamin K3 (or menadione) crystals. Vitamin K3 is a synthetic form of vitamin K which is essential for blood clotting. It is regularly added to the diets of pigs and chickens in order to prevent vitamin K deficiency. However, vitamin K3 has to be alkylated in the liver before it becomes biologically active. For this reason it is less effective at treating deficiencies than natural vitamin K and is less likely to be used on humans. Magnification unknown.

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Keywords: biochemical, biochemistry, chemical, chemistry, compound, compounds, crystal, crystals, menadione crystals, plm, polarised light micrograph, synthetic, vitamin k3

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