The refill market is a supermarket where you get refills on all your consumer needs. You need to supply your own receptacles which you can fill with as much or little as you require.
As I researched my idea I found I was not the first to come with this idea, in fact there have been some really amazing efforts to make this concept a reality. Please see http://www.beunpackaged.com/ for more information.
I think this concept could be more successful if integrated with a wise home. Your kitchen can track your eating habits, to fine-tune your actual needs. This can then we translated into a shopping list, which can be communicated directly to the Refill market, or you can go in person to collect your food.
Conscious brands could play into this concept by designing and supplying custom receptacles that can keep food fro longer. Creating bespoke refill stations or supplying some other personalised service.