Two new pieces of research have confirmed the information contained in The Prostate Playbook. The danger of publishing health advice is that more recent research might not support the advice given. When it does support my book, however, I am really chuffed. Two research projects published in the International Journal of Epidemiology have confirmed that coffee consumption is not linked to prostate cancer (2019), and circulating levels of Vitamin D are likewise not linked to the incidence of prostate cancer (2018).
So my advice in the book remains current and once again supported by published research.