A new study by Gneezy and Shafrin explores a longitudinal Dutch data set that permits them to track weight gains over 13 years, distinguishing between single people, cohabitors, “traditional” marriages, and marriages in which the parties had a prenuptial agreement–both with and without children.

The two scholars are looking to explain the one health measure in which married people do worse than singles:, i.e. “Why Does Getting Married Make You Fat?“ Their perhaps unsurprising conclusion? People in the dating market (either actually or potentially) try to stay slim and attractive to more random people than the securely married.

But to the creative interpreter, there is buried in this data another possible headline: “Prenups Make You Fat.”