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Vitamin C crystals

Vitamin C crystals

A612/0264

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Credit

M.I. WALKER / SCIENCE PHOTO LIBRARY M.I. WALKER / SCIENCE PHOTO LIBRARY

Caption

Polarised light micrograph of crystals of ascorbic acid, the common vitamin C. Vitamin C is a water soluble vitamin and plays an essential role in the activity of many enzymes within the human body. It is important for the growth and maintenance of healthy bones, gums, teeth, ligaments and blood vessels. It is also involved in the production of neurotransmitters and in the stimulation of the immune system against infections. The main dietary sources of vitamin C are citrus fruits and green vegetables. The recomended daily intake for an adult is 30mg. Severe deficiency of vitamin C leads to scurvy, characterised by swollen bleeding gums and anaemia. Magnification: x25 at 35mm size.

Release details

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