Food prices have been rising steadily lately in low-income countries, especially in Africa, due to food shortages. Governments in Egypt, the Philippines, Indonesia, Haiti and some other countries are already facing social unrest due to food price hikes.
"Hundreds of thousands could starve and children would suffer from malnutrition," Strauss-Kahn said on Saturday at the spring meetings of the International Monetary Fund and the World Bank.
The IMF chief urged the international community to address this problem more seriously.
"So, if we want to avoid this huge rise in commodity prices, and especially food prices, having terrible consequences, then we need to do much more about this problem than has been done until now," Strauss-Kahn said.