According to a confidential report prepared by a consultant to the World Health Organization, the food industry has followed the example of the tobacco industry, infiltrating the WHO and exerting "undue influence" over policies intended to safeguard public health by limiting the amount of fat, sugar and salt we consume. "The easy movement of experts - toxicologists in particular - between private firms, universities, tobacco and food industries and international agencies creates the conditions for conflict of interest," says the report by Norbert Hirschhorn.