By Plateresca / Getty Images For several years now, we have been hearing about the health benefits of fermented foods. But they could also be beneficial for the planet, helping us make our diet more sustainable. It is precisely this aspect that France is investing in with a vast new research and innovation project. For several years now, we have been hearing about the health benefits of fermented foods. But they could also be beneficial for the planet, helping us make our diet more sustainable. It is precisely this aspect that France is investing in with a vast new research and innovation proj…