There's no shady claims to nutritional know-it-all, nor totally impractical cheffy ideas involving blowtorches and elderberries picked from the mane of a unicorn. It's real, it's achievable and it encourages a genuine balance so hard to come by now. "I'm an omnivore, and part of being an omnivore means I'll eat anything,' she says. Nigella, never leave us again. Please?