The leading body of scientists in the UK dealt a surprise blow to advocates of genetically modified food this week when it published a surprisingly critical report. The Royal Society had been widely expected to help allay consumer concerns over the safety of GM foods. Instead, the Society called for tougher regulations before GM food is passed as safe for human consumption. It also drew particular attention to the potential risks for babies, who are more susceptible to changes in the nutritional make-up of the food they eat. The Society's report went on to call for a thorough re-examination of UK and EU laws to ensure testing of any GM ingredients for use in infant formula is particularly stringent. It said the system for testing and approving ingredients should be made "more explicit and objective".