In an era where a great variety of cuisines are just a restaurant away, it has become difficult to choose what to eat. Food products labelled ‘healthy’ one day are abruptly dismissed as ‘lethal’ the very next, while crash diets and celebrity regimens are trashed by nutritionists. So what is the correct, balanced diet for your body? How do you know if you are eating your way to well-being or ill-health? The answer, simply enough, lies within.