<p>Common in the US but banned in the EU, this animal feed additive makes for muscular pigs and beefy international trade disputes. </p>

Common in the US but banned in the EU, this animal feed additive makes for muscular pigs and beefy international trade disputes.

<p>Common in the US but banned in the EU, this animal feed additive makes for muscular pigs and beefy international trade disputes.&nbsp;</p>

Ractopamine: Chemistry in its element

A weekly tour of the periodic table, from Chemistry World, the magazine of the Royal Society of Chemistry.

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