Taking a look at vitamin A

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CLINICAL OPINION

Taking a look at vitamin A

Shaun Holt

Shaun Holt

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The widespread belief that carrots are good for our vision and particularly our night vision can be traced back to British propaganda from World War II

Bottles of multivitamins are a common sight on New Zealand pharmacy shelves. But what is the clinical evidence backing up their use? Each month, complementary medicine expert Shaun Holt takes a look at the science in his A to Z of Vitamins series.

Vitamin A is the name given to a group of fat-soluble retinoids, including retinol and retinal, which are involved in immune function, vision, repr
References

1. Wesseler J, Zilberman D. The economic power of the Golden Rice opposition. Environ Dev Econ 2014;19(6):724–42.
2. Age-Related Eye Disease Study Research Group. A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E and beta carotene for age-related cataract and vision loss: AREDS report no. 9. Arch Ophthalmol 2001;119(10)1439–52. Study correction in Arch Opththalmol 2008;126:1251.
3. Rodahl K, Moore T. The vitamin A content and toxicity of bear and seal liver. Biochemical J 1943;372):166–68.