Really nice view on how we have become pre-occupied with the wrong thing. If diets were so revolutionary, life would be simple. Unfortunately, its about habits and behaviours which is considerably more hard work.
A food high in salt has more than 1.5g salt per 100g (or 0.6g sodium)
High GI carbohydrates or refined and processed foods contain few nutrients and can result in energy levels rising and falling throughout the day