ちょっと調べてみた。日本人を対象にした研究だとちょっと古いけどこんなのがあった。
Egg consumption, serum total cholesterol concentrations and coronary heart disease incidence: Japan Public Health Center-based prospective study.
Nakamura Y, Iso H, Kita Y, Ueshima H, Okada K, Konishi M, Inoue M, Tsugane S., Br J Nutr. 2006 Nov;96(5):921-8.
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Conclusion
We found that eating eggs more frequently, up to almost daily,
was not associated with any increase in CHD incidence. We
found an inverse correlation between egg consumption and
the frequency of hypercholesterolaemia in both sexes in both
cohorts, probably because hypercholesterolaemic individuals
avoided eating eggs
(拙訳)
結論←我々はもっと卵を食おう。毎日食っても心臓病のリスクは上がらない。
卵を食えば食う程、高コレステロール血症が減ったぞ!
多分高コレステロール血症のひとは卵食ってないな?