Vitamin C: Why we need it and how much

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Vitamin C: Why we need it and how much

By Noni Richards
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Health researcher Noni Richards delves into the recommended dietary intake of vitamin C, then examines the evidence for some of its therapeutic uses

Vitamin C, also known as L-ascorbic acid or ascorbate, is a water-soluble vitamin that is naturally present in some foods. Most animals can synthesise
References

1. National Institutes of Health. Vitamin C: Fact Sheet for Health Professionals. March 2021.

2. Australian Government Department of Health and Ageing and New Zealand Ministry of Health. Nutrient Reference Values for Australia and New Zealand. Canberra, ACT: National Health and Medical Research Council; 2006.

3. Hemilä H, Chalker E. Vitamin C for preventing and treating the common cold. Cochrane Database Syst Rev 2013;2013(1):CD000980.

4. Carr AC. Vitamin C in pneumonia and sepsis. In: Chen Q, Vissers MCM (eds). Vitamin C: New Biochemical and Functional Insights. Boca Raton, FL: CRC Press; 2020.

5. Waters DD, Alderman EL, Hsia J, et al. Effects of hormone replacement therapy and antioxidant vitamin supplements on coronary atherosclerosis in postmenopausal women: a randomized controlled trial. JAMA 2002;288(19):2432–40.

6. Gaziano JM, Glynn RJ, Christen WG, et al. Vitamins E and C in the prevention of prostate and total cancer in men: the Physicians’ Health Study II randomized controlled trial. JAMA 2009;301(1):52–62.

7. Hercberg S, Galan P, Preziosi P, et al. The SU.VI.MAX Study: a randomized, placebo-controlled trial of the health effects of antioxidant vitamins and minerals. Arch Intern Med 2004;164(21):2335–42.

8. University of Otago. The power of C. March 2016.