You are what you eat. Everybody who loves good food understands this instinctively. But now, a piece in New Scientist by Ferris Jabr offers some proof.
It turns out that we don't entirely break down our food. A study by Chen-Yu Zhang of Nanjing University found microRNA from plants floating in the blood of people and cows. One of type of microRNA, which is particularly abundant in rice and members of the brassica family, can change gene expression in mice.