If there's an overarching theme to the healthy eating landscape this year, it's the convergence of health and sustainability. Where these used to be two separate conversations relating to food, now they are one and the same. The health of the planet and the health of the people on it are being considered together.

This is really good news. There are no healthy people on a ravaged planet. As a report in the Lancet earlier this year pointed out, we can't consider the issues of obesity, undernutrition and climate change separately any more, since they each impact on each