Does eating dairy foods increase the risk of prostate cancer?

Recent headlines have warned a diet high in dairy foods may increase men’s risk of prostate cancer.
The news is based on a recent review published in the Journal of the American Osteopathic Association, which claimed to find eating high quantities of plant-based foods may be associated with a decreased risk of prostate cancer, while eating high quantities of dairy products may be associated with an increased risk.
This study was a review, which means the researchers collated the findings of a number of existing studies to reach their conclusions.
They looked at 47 studies, which they claim constitute a comprehensive review of all available data from 2006-17. These studies examined prostate cancer risk and its association with a wide variety of foods, including vegetables, fruits, legumes, grains, meat (red, white and processed), milk, cheese, butter, yoghurt, total dairy, calcium (in foods and supplements), eggs, fish and fats.