Beef from Brazil, avocados from Mexico, lamb from New Zealand, wines from South Africa and green beans from Kenya – food shopping lists have a distinctly international flavour. And with many questioning the sustainability of importing so much food from so far away, we are beginning to ask if switching to a vegetarian diet to cut emissions caused by meat production is as sustainable as one might think.
People who regularly go on diets tend to lose weight initially but bounce back and even gain weight after stopping the regime. This phenomenon – dubbed yo-yo dieting – is associated with changes in metabolism and is one reason why the vast majority of calorie-based diets fail. But exactly what causes these metabolic changes has remained a mystery – until now.
When it comes to carbon emissions, certain unhealthy snacks may carry an unexpected blessing compared to healthier options.
As humankind faces the threat of global warming, we are becoming increasingly aware that our every indulgence will leave its mark on the environment. This is particularly true of the food we put in our mouths.