NEW BEDFORD — At Amaral's Market on Belleville Avenue on a busy Saturday afternoon, the aroma of spiced fish filled the air as nutritionist/chef Alison Miller of the UMass Extension demonstrated how it's possible to eat well on a budget and obtain healthy foods at the corner market. Small markets often can create what nutritionists call "food deserts," in which fresh, wholesome fruit and vegetables are hard to come by. (11/23/14 South Coast)