British Medical Journal releases research reports London – Caroline Kent The British Medical Journal has released a new report saying that reducing sugar intake has a small but significant effect on body weight in adults. Although the effect is relatively small (an average reduction of 0.8 kg), the findings provide some support for international guidelines to cut sugar intake to less than 10 percent of total energy to help reduce the global obesity epidemic. Another BMJ report released on Wednesday suggests in vitro fertilization (IVF) is associated with an increased risk of pulmonary embolism (blockage of the main artery of the lung) and venous thromboembolism (blood clots) during the first trimester of pregnancy. IVF has been used since 1978 for the 10 percent of couples worldwide affected by infertility. Approximately five million individuals have so far been born after IVF.