In the article listed above, the serum FGF21 data presented in Supplementary Table 1 in the "lean (291.8 ng/L [144.5–512.0])” and "overweight/obese (208.7 ng/L [94.4–325.7])" columns were inversed due to a mistake in typing. It should have been presented as “lean (208.7 ng/L [94.4–325.7])” and “overweight/obese (291.8 ng/L [144.5–512.0]).” The authors apologize for this error.

The online version of the Supplementary Data for this article ( has been updated to correct this error.

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