在谷类食物中添加叶酸是加拿大的一项公共卫生政策,补充叶酸可使未出生和新生儿中的神经管缺陷病例减半。 加拿大多伦多市的Dr.Joel Ray及其同事在Sunnybrook and Women’s学院的健康科学中心宣称,应鼓励孕妇在围产期增加叶酸的使用,且其他各国都应考虑采用在食物中添加叶酸的规划。这项研究是由美国纽约北约克总医院和加拿大的多伦多大学合作完成的。 The addition of folic acid to cereals is a Canadian public health policy that folic acid supplementation can halve the number of cases of neural tube defects in both unborn and newborns. Dr.Joel Ray of Toronto, Canada, and his colleagues at the Health Sciences Center at Sunnybrook and Women’s College declared that pregnant women should be encouraged to use folic acid during the perinatal period and that all other countries should consider planning for the addition of folic acid to their foods. The study was conducted in collaboration with North York General Hospital in New York, USA and the University of Toronto in Canada.