The consumption of monkey brains is not verified in any countries, but they are rumored to be served as a delicacy in China, Malaysia and Singapore. The brains are said to be removed from the monkeys while they are still alive.
The consumption of monkey brains has been linked to the risk of Creutzfeldt-Jakob (or mad cow) disease. This is because the disease is carried in the brains of hosts. When contracted, it causes brain function to diminish and ultimately leads to death. Some of those claiming to have sampled monkey brains are Princess Diana's butler and the pop star Jesse McCartney.