Where in the world is legal to drink blood?

It is generally illegal to drink blood in most parts of the world, with some exceptions. In the United States, blood is regulated as a food by the Food and Drug Administration (FDA) and has strict regulations in place for the collection, storage, and distribution of blood for transfusion. Drinking unpasteurized blood is strongly discouraged due to the risk of transmitting blood-borne diseases such as HIV, hepatitis, and syphilis.

However, there are a few countries where drinking blood is legal and culturally practiced. One example is the Maasai people of Kenya and Tanzania, who traditionally consume blood from freshly slaughtered animals as part of their diet and cultural ceremonies. In some other parts of the world, such as certain Indigenous communities in the Americas and some religious rituals, the practice of blood drinking may also occur.

It's important to note that drinking blood poses health risks and is generally not recommended or regulated as a consumable beverage in most countries.