A Dissenter's Journey.

After I studied medicine, my career took an early and unusual course when I was offered a clinical research post in Jamaica dealing with childhood malnutrition, of which I knew nothing. My subsequent nutritional explorations allowed gastrointestinal and metabolic analyses to have an impact on several public health policies. The biggest challenges came from unexpected political demands: coping with poor school performers in the Caribbean; addressing UK public health initiatives in health education; breaking the siege of Sarajevo; developing a Food Standards Agency as a sudden need for Tony Blair as incoming prime minister; dealing with widespread bovine spongiform encephalopathy in Europe; and responding to a United Nations request to assess global malnutrition. This last task revealed the need for a lifelong approach to nutrition, which also encompassed pregnancy. But perhaps the biggest challenge was establishing the criteria for obesity assessment, management, and prevention for policy makers across the globe.