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KUANTAN, MALAYSIA, January 19, 2008: Rising prices for cooking oil are forcing some residents of Mumbai, India, to ration every drop. Bakeries in the United States are fretting over higher shortening costs. And here in Malaysia, brand-new factories built to convert vegetable oil into diesel sit idle, their owners unable to afford the raw material.

This is the other oil shock. From India to Indiana, shortages and soaring prices for palm oil, soybean oil and many other types of vegetable oils are the latest, most striking example of a developing global problem: costly food.

The food price index of the Food and Agriculture Organization of the United Nations, based on export prices for 60 internationally traded foodstuffs, climbed 37 percent last year. That was on top of a 14 percent increase in 2006, and the trend has accelerated this winter. In some poor countries, desperation is taking hold. Just in the last week, protests have erupted in Pakistan over wheat shortages, and in Indonesia over soybean shortages. Egypt has banned rice exports to keep food at home, and China has put price controls on cooking oil.

Palm oil prices have jumped nearly 70 percent in the last year because supply has grown slowly while demand has soared.

Biofuels accounted for almost half the increase in worldwide demand for vegetable oils last year, and represented 7 percent of total consumption of the oils, according to Oil World, a forecasting service in Hamburg, Germany. The growth of biodiesel, which can be mixed with regular diesel, has been controversial, not only because it competes with food uses of oil but also because of environmental concerns. European conservation groups have been warning that tropical forests are being leveled to make way for oil palm plantations, destroying habitat for orangutans and Sumatran rhinoceroses while also releasing greenhouse gases.