Collagen supplements are used by a range of celebrities to supposedly improve the health of skin, hair and joints.
But this new craze is fuelling deforestation of the Amazon rainforest – the green lungs of the Earth.
An investigation by The Bureau of Investigative Journalism found that tens of thousands of cattle, which were being raised on farms that were damaging tropical forests, were processed at abattoirs connected to the international collagen supply chain.
