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Previous Volume 341:1396-1397 October 28, 1999 Number 18 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: In their article on hydrogenated fats and serum cholesterol levels, Lichtenstein et al. (June 24 issue)¹ apparently did not consider variations in the ratio of polyunsaturated to saturated fatty acids (P:S) in the six experimental diets. The P:S ratio is well established as a mediator of serum cholesterol concentrations.^2,3 Linear regression analysis shows that the P:S ratio in each of the five diets containing vegetable oil (calculated on the basis of data in Table 3 in the article by Lichtenstein et al.) explains considerably more of the variation in total cholesterol, low-density lipoprotein (LDL) cholesterol, and the . . . [Full Text of this Article]

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