The 'food deserts'.
Food deserts are insulated places where shops and other comforts are not so available.
Food deserts are very frequent in low populated countries and regions and it does not prevent local people (i.e. farmers) could work and produce foods; anyway their diet often is lacking of many important nutrient elements.
LINK: http://www.ers.usda.gov/amber-waves/201 ... -4KhpVZrZ5