Retail inflation moved up marginally to 5 percent in December, as prices of some food items, including fruits and vegetables increased. In November, retail inflation based on the Consumer Price Index was at 4.38 percent. In December 2013, retail inflation was at 9.87 percent. Food inflation rose to 4.78 percent in December 2014, showed the official data, today. Retail prices of vegetables increased by 0.58 percent. Fruits were costlier by 14.84 percent. Category under food and beverages witnessed a rise of 5 percent in December. Inflation in protein-rich items like eggs, fish and meat was down at 5.24 percent in December. In the pulses and products category, retail inflation in December stood at 7.24 percent. For items in fuel and lights, inflation softened to 3.41 percent during the month. For milk and its products, the rate of price rise stood at 9.62 per cent in December.