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Barbaba A. Underwood, PhD
National Eye Institute National Institutes of Health Bethesda, Md

JAMA. 1985;254(2):232-233.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

The caution of Dr Selhorst and colleagues¹ is justified and vitamin A intoxication from abnormally high habitual consumption of liver should be considered in pseudotumor cerebri. The potential for intoxication is compounded by the uncontrolled, over-the-counter availability of vitamin A supplements providing ten or more times the recommended daily intake and by the increased public awareness of largely unsubstantiated claims of benefits from megadose vitamin therapy. The concluding sentence of their letter, however, suggests that vegetables rich in vitamin A, which are often recommended in weight-reduction diets, may be worth our special concern. To my knowledge, there are no reported cases of vitamin A intoxication resulting from the ingestion of natural vegetable food sources that are rich in vitamin A activity derived from carotenoids, the only form of vitamin A found in vegetable products. In one reported fatal case, where a high intake of carrot juice . . . [Full Text PDF of this Article]

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