There are a few reasons why Fila Brasileiro is banned in the UK. One reason is that the breed is considered to be aggressive and dangerous. Another reason is that the Fila Brasileiro is not a recognized breed by the Kennel Club, so they are not allowed to be imported into the UK. Finally, this breed is also banned in the UK because of the Breed Specific Legislation that was put in place in 2001. This legislation bans any dog that is considered to be a "pit bull type" dog, and the Fila Brasileiro falls into this category.