Foie gras
The technique of gavage dates as far back as 2500 BC, when the ancient Egyptians began keeping birds for food and deliberately fattened the birds through force-feeding. Today, France is by far the largest producer and consumer of foie gras, though it is produced and consumed worldwide, particularly in other European nations, the United States, and China.
Caviar
China has emerged as the leading producer, accounting for 60% of the world production in caviar. The largest caviar company in the world is the Chinese brand Kaluga Queen, which cultivates sturgeon at Qiandao Lake in Zhejiang.