Pharmacognosy - medicinal plants (herbs)
Pharmacognosy - medicinal plants (herbs)

Theme XIII: Vitamins

Vitamin C

Vitamin C. Description, chemical formula, role and characteristics. Sources of vitamin C.

It is well known its importance in the treatment and prevention of scurvy.


Vitamin C is involved in the formation of fundamental intercellular collagen, in body structures and particularly in the formation of bones and teeth. It enhances the absorption of iron from plant foods. It is essential in the healing of bone fractures.


Although the unused ascorbic acid is rapidly excreted in the urine, the prolonged use can lead to the formation of stones in bladder and kidney, can interfere with the effects of anticoagulants, in the destruction of vitamin B12 and in calcium bones loss.


The main sources of vitamin C are citrus fruits, fresh strawberries, pineapple, papaya and guava. Among the vegetables are broccoli, Brussels sprouts, tomatoes, spinach, green peppers, cabbage and turnips.

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