The United Nations food agency's world price index fell in June to its lowest level in more than two years, pushed down by a drop in the cost of sugar, vegetable oils, cereals and dairy products. The Food and Agriculture Organization's (FAO) price index, which tracks the most globally-traded food commodities, averaged 122.3 points in June against a revised 124.0 for the previous month, the agency said on Friday...FAO said the higher forecast was almost entirely driven by better prospects for global wheat production, with the forecast lifted by 0.9% to 783.3 million tonnes.