HOKKAIDO, Japan — Prime Minister Brown and fellow world leaders provoked an outcry after they had a six-course lunch followed by an eight-course dinner at the G-8 summit where the global food crisis tops the agenda.

Mr. Brown was served 24 different dishes during his first day at the summit — just hours after urging the world to reduce the “unnecessary demand” for food and calling on British families to stop wasting food.

Mr. Brown and his wife, Sarah, were among 15 guests at the “blessings of the earth and the sea social dinner,” which consisted of 18 dishes in eight courses including caviar, smoked salmon, Kyoto beef, and a “G-8 fantasy dessert.”

The banquet was accompanied by five different wines including champagne, a burgundy, and sake.

African leaders, including the heads of Ethiopia, Tanzania, and Senegal, who had taken part in talks during the day, were not invited to the function.

The dinner came just hours after a “working lunch” consisting of six courses including white asparagus and truffle soup, crab, and a supreme of chicken.

The lavish dining arrangements — disclosed by the Japanese government, which is hosting the summit in Hokkaido — came at a time of concern over rising food prices triggered by a shortage of many basic necessities. On the flight to the summit, Mr. Brown urged Britons to cut food waste as part of a global drive.

Opposition politicians and charities condemned as extravagant the meals served.

Dominic Nutt, of Save the Children, said: “It is deeply hypocritical that they should be lavishing course after course on world leaders when there is a food crisis and millions cannot afford a decent meal to eat.”