Gallagher, Mari. “USDA Defines Food Deserts.” Nutrition Digest. American Nutrition Association, 2010. Web. 22 Mar. 2016. <http://americannutritionassociation.org/newsletter/usda-defines-food-deserts>.
This scholarly work provides information on the food desert problem in the United States. A food desert is described as a one mile radius where no supermarkets or access to fresh foods are available. This is a growing problem, and it poses a threat to those that are unable to drive. For people that rely on public transportation, the time it takes them to get to a grocery store is multiplied many times over when being compared to the time it would take them to dive there. Those that are stranded in these food deserts tend to be surrounded by places like gas stations or small food shops which have an abundance of processed foods with high sugar, saturated fats, and low nutrition.

Gallagher, Mari. “USDA Defines Food Deserts.” Nutrition Digest. American Nutrition Association, 2010. Web. 22 Mar. 2016. <http://americannutritionassociation.org/newsletter/usda-defines-food-deserts>.

Michelle Obama has brought attention to the food desert problem, and the Healthy Food Financing Initiative (HFFI) is working to supply these small shops with nutritious and fresh foods. Although action is taking place, it will be many years before the affected families will have access to the nutrition they need.
This source is a helpful reference for the explanation of and background information is has about food deserts.