casual_cyclist wrote:Back to the science, the Harvard Healthy Eating Plate - Harvard’s New Guide to Healthy Eating
Something that surprised me is:Limit milk and dairy products to one to two servings per day, since high intakes are associated with increased risk of prostate cancer and possibly ovarian cancer.
There is more info on their Calcium and Milk: What’s Best for Your Bones and Health? page
http://www.hsph.harvard.edu/nutritionsource/calcium-full-story/A diet high in calcium has been implicated as a probable risk factor for prostate cancer. In a Harvard study of male health professionals, men who drank two or more glasses of milk a day were almost twice as likely to develop advanced prostate cancer as those who didn’t drink milk at all. The association appears to be with calcium itself, rather than with dairy products in general: A more recent analysis of the Harvard study participants found that men with the highest calcium intake—at least 2,000 milligrams a day—had nearly double the risk of developing fatal prostate cancer as those who had the lowest intake (less than 500 milligrams per day).
The link with ovarian cancer is tenuous at best. I am in the process of chasing up the references with regard to prostate cancer. One of them suggests a link between tomato sauce and prostate cancer.
The bottom line I would say is "moderation in all things"