Global food prices dropped for a fifth-straight month after a seasonal rise in supplies took place and demand dropped for some products. The northern hemisphere wheat harvest is helping to ease supply concerns as more grain moves out of Ukraine. A U.N. index of world food costs dropped 1.9 percent in August and remains at its lowest level since January. While consumers will feel some relief, the declines arenâ€™t as sharp as they were in July, when food prices dropped the most since 2008. Food prices do remain higher than last year. Food costs fell across the board last month, with vegetable oils dropping slightly below last yearâ€™s level. More palm oil supplies from Indonesia and seasonally rising outputs in southeast Asia helped to lower prices. Import demand for sunflower oil is subdued. Dairy stocks remained adequate. Major poultry importers reduced purchases, and domestic bovine meat demand in key exporters was weak.