“It is Ian’s regular smoothie. A punnet of raspberries, a fistful of spinach, Icelandic yoghurt (Finnish, if they are out of Icelandic), spirulina, wheatgrass, acerola cherry powder, chlorella, kelp, acai extract, cocoa nibs, zinc, beetroot essence, chia seeds, mango zest and ginger. It is his own invention, and he calls it Keep It Simple.”