Nestle is still weighing its options and may decide against a bid, Bloomberg said, citing two unnamed people with knowledge of the matter.
Nestle declined to comment.
Italian chocolate maker Ferrero and U.S.-based Hershey have teamed up and said on Wednesday they were reviewing a possible offer for Cadbury.
Analysts view Nestle as a potential suitor for Cadbury.
(Writing by Lisa Jucca; Editing by Jon Loades-Carter)