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The Vitamin Update

Quick guide to Vitamin C

Read the full guide

Essential For

  • the manufacture of collagen, a protein which forms the basis of connective tissues such as bones, teeth and cartilage
  • wound-healing
  • healthy immune and nervous systems
  • adrenal hormone production
  • as an antioxidant to help prevent disease

Absorption and metabolism
Daily intake is necessary.

Deficiency
Severe deficiency leads to scurvy with symptoms of bleeding gums, joint pain, easy bruising, dry skin, fluid retention, and depression. Marginal deficiencies may play a role in the development of cancer, cardiovascular disease, high blood pressure, lowered immunity, diabetes and cataracts.

Sources
Good sources include fruits and vegetables.

Daily recommended dietary intakes

  • Men - 60 mg
  • Women - 60 mg
  • Pregnancy - 70 mg
  • Lactation - 95 mg

Toxic effects of excess intake
These include diarrhea, nausea, stomach cramps and skin rashes.

Therapeutic uses of supplements
These include the treatment and prevention of many disorders including cardiovascular disease, high blood pressure, cancer, gallstones, cataracts, diabetes, asthma and infections.

Interactions
It aids iron absorption and acts with other antioxidant vitamins. Smoking, pollutants, aspirin, alcohol, estrogen, antibiotics and steroids raise requirements.

Cautions
Large doses may cause kidney stones in kidney disease sufferers and may also affect blood and urine test results.

Read the full guide