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New Imperatives for an Old Vitamin (A)^{1 ,2}

VII E. V. McCollum International Lectureship in Nutrition

International Center for Epidemiologic and Preventive Ophthalmology, Dana Center, Wilmer Institute 120, Johns Hopkins Hospital, Baltimore, MD 21205

This year marks the 75th anniversary of the discovery of vitamin A by E. V. McCollum. Interest over the past 40 years has focused almost exclusively on the ocular complications of deficiency. Recent data from Indonesia, India, Thailand, Tanzania, Guatemala and elsewhere are reorienting concerns. Observational studies indicate that vitamin A-deficient children grow poorly, are more anemic, have more infections and are more likely to diet than their peers, and that the magnitude of many of these consequences is directly related to the severity of the deficiency, even after adjusting for other variables. The few supplementation trials completed to date support these conclusions. Even after excluding children with frank deficiency at baseline, vitamin A-supplemented children have grown faster, developed higher hemoglobin values, and died less frequently (by 30–60%) than their nonsupplemented peers. The great surprise is not the central role vitamin A plays in each of these areas (McCollum and others recognized this long ago), but that this single nutrient can so profoundly affect children who are subject to multiple adverse influences.

KEY WORDS: • vitamin A • mortality • anemia • xerophthalmia • E. V. McCollum

¹ Presented as part of the symposium, "Biological Actions of Carotenoids," given at the 72nd annual meeting of the Federation of American Societies for Experimental Biology, Las Vegas, NV, May 2, 1988, and supported by grants from the BASF Corporation, Hoffmann-LaRoche Inc., and the National Dairy Council.

² This work was carried out under Cooperative Agreement DAN0045A5094 from the Office of Nutrition, USAID, with additional support from Task Force Sight and Life, the World Health Organization, the Thrasher Research Fund, and the Eleanor Naylor Dana Charitable Trust.

Manuscript received 13 July 1988. Revision accepted 6 September 1988.

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				A. Sommer Vitamin A Deficiency and Xerophthalmia Arch Ophthalmol, March 1, 1990; 108(3): 343 - 344. [Abstract] [PDF]