Publishing house Penguin has said it "undertook all the necessary due diligence" before releasing The Salt Path, after a series of claims about the book's veracity. A recent Observer investigation claimed English author Raynor Winn fabricated or gave misleading information about some elements of her 2018 non-fiction best-seller.

The publisher behind The Salt Path is delaying the author’s next book following allegations that she fabricated parts of the best-selling book, The i Paper has learned.The book’s author Raynor Winn, real name Sally Walker,

In a statement on Friday, Penguin Michael Joseph, which published The Salt Path in 2018, said Raynor Winn’s next book On Winter Hill, will be delayed.