LancelotSA
Banned
The situation is even more complicated by the fact that trace elements of melamine are very often found throughout the global food chain posing no risk to human health. Therefore, one of the challenges is distinguishing between existing traces of melamine, which pose no harm, and melamine which has been intentionally added into the food chain.
Understanding these facts is important in order to avoid panicking consumers. A risk assessment by the European Food Safety Authority (EFSA), for example, concluded that melamine contaminated food products such as biscuits and confectionery products posed very low health risk even if consumed in vast quantities.
To illustrate, EFSA derived a Tolerable Daily Intake (TDI) for melamine (and its analogous) of 0.5mg of melamine per kilogram of body weight per day. For a person weighing 70kg this would mean a daily intake of 35mg. The TDI applied by the U.S. Food and Drug Administration (FDA) is similar in magnitude of the EFSA limit at 0.63 mg/kg body weight/day. By using a worse case scenario, the U.S. FDA derived at the conclusion that levels of melamine and melamine-related compounds below 2.5 ppm do not raise public health concerns.
http://www.thejakartapost.com/news/2008/11/01/melamine-food-facts-and-risks.html