There has been rapid development in the Asia-Pacific region, leading to improvements in the food supply and nutrition. The high prevalence of low birth weight has been a problem in many countries and continues to be a problem in some parts of the region. In the past few years an epidemic of obesity and chronic disease has emerged. The fetal origins hypothesis links the high prevalence of low birth weight and recent increasing obesity to explain the emerging epidemic of chronic disease. One public health strategy to challenge this epidemic is the promotion of breastfeeding of all infants. Breastfeeding has been shown to protect against childhood obesity, and is "dose related", that is, the longer an infant is breastfed, the lower the risk of obesity.