Abstract: | This paper tests portions of a new theory of immigrant health by focusing exclusively on latent biomarkers of future health risks. Using data from the National Health and Nutrition Examination Survey III, 1988–1994 – we uncover the typically observed immigrant health advantage among recent immigrants that diminishes among long‐term immigrants. In addition, we observe worse health among U.S.‐born Mexican Americans relative to non‐Hispanic Whites. Finally, although our theory suggests that recent immigrants may have latent health risks due to disadvantaged childhood experiences, we do not find evidence in support of this theory. |