The FDA's emergency assessment of the industrial chemical melamine said Americans don't need to worry, eating a tiny bit of the chemical won't harm people.
But there is an exception.
The government agency said even a tiny bit of melamine could be dangerous to babies, if it's found in infant formula.
This latest report will help investigators charged with checking for contaminated foods from China as it enters the United States and will provide a framework for making decisions.
Melamine is added to milk products when food makers want to hide the fact that milk has been diluted. It is also a chemical used in making plastic, so food processed in plastic equipment may be exposed to it.
In the U.S., regulators said infant formula doesn't include any ingredients from China.
