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.

In her bestselling memoir, Raynor Winn claims she and her husband endured homelessness, terminal illness and economic hardship. Now, her story might be unravelling

Penguin Michael Joseph has spoken about the recent allegations facing The Salt Path saying it “undertook all the necessary pre-publication due diligence” and that “prior to the Observer enquiry, we had not received any concerns about the book’s content”.