It is the macro factors that we must first get right. Food choices are influenced first and foremost by availability and choice. Overwhelmingly in the EU these are determined by decisions on subsidy, price guarantees, on and some subsidies, within the CAP mechanism. These were never designed with nutrition strategy in mind. A first objective of an nutrition strategy with any hope of being effective must be getting healthy nutrition accepted as a driver of future CAP reform proposals (as environmental protection has now come to be accepted). It is not really worth bothering with micro factors until we get the big ones right!
Various factors may hinder implementation of nutritional strategy, first and foremost being the environment and situation in which the person is placed! Cultural background, family responsibilities, mental acceptance, financial condition, ate some of them! If maximum ate favourable, implementation becomes easy !