The latest data from Statista suggests we should consider our water footprint alongside our carbon footprint, and they are not talking about watering the lawn or taking a long shower. How many of us think about H20 when grocery shopping? Well, depending on your diet, the food we buy can have a huge water footprint. If you buy 1kg of beef for a barbecue at the weekend, there has been an average of 15,415 litres of water used in its production, closely followed by nuts, with 9,063 litres of water needed to produce the average kilo. It looks like a healthy diet of fruits and vegetables, requiring only 962 and 322 litres per kilogram, respectively, will not only be good for our figures but the planet as well.