Morland et al. (2002): 3x as many supermarkets (e.g., defined as having the healthiest food options compared with other food stores existed in the wealthier neighborhoods, though more convenience stores, small grocery stores, and specialty food stores were in the lower wealth neighborhoods). Further, fast food restaurants were more prevalent in the lower and medium wealth neighborhoods than in the higher wealth neighborhoods. For comparisons by race, results indicated that more Black residents lived in lower SES neighborhoods than did White residents, and four times as many supermarkets were located in White neighborhoods than in Black neighborhoods. Unfortunately, they did not collect data on obesity risk, so they were unable to demonstrate a relationship between the differences in the socioeconomic distribution of food sources and obesity risk and SES stratification.