Professor Schwarcz of McMaster University in Hamilton, ON has aptly demonstrated through isotopic profiling that "you are what you eat", and has used the technique to solve a murder mystery.
<http://www.canada.COM/components/prints ... a25930bc4d>
Listen to an interview, in which he also explains how local rainfalll determines the O16:O18 ratio in your body which reveals where you have been living, at
<http://www.rcinet.CA/rci/en/emissions/1441.shtml>