The major components of human diet both past and present may be estimated by measuring the carbon and nitrogen isotope ratios (δ13C and δ15N) of the collagenous proteins in bone and tooth dentine. How
Spreadsheet containing all supplementary tables including; Table S1: Dairy Component Proportions used for creating Figure 1a, Table S2: Archaeological sample information, Table S3: Ancient protein res
The recent development of multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) notably in the disciplines of earth sciences, now allows the precise measurement of isotope ratios, e
