“…The first of Davis's influences were the works of Sydenstricker andKing (1921a, 1921b), which he used to define the measurement per equivalent adult male, a unit that takes into account the age and the gender of the members of a household in order to identify their dietary needs in relation to the needs of an adult male. Edgar Sydenstricker and Willford King were statisticians with close ties to economics, whose work, among other things, orbited the making of index numbers and the application of statistics to health economics (see King 1930;Clarke and Erreygers 2022). In the case of the equivalent-adult-male scale, they start from a sample of 1,500 selected families living in the South Carolina cotton-mill villages in 1917 to establish the "fammain" unit, which stands for "food for adult male maintenance" (Sydenstricker & King, 1921a, p. 588;1921b, p. 847).…”