What Are the Pros and Cons of Milk's Effect on Cancer?

Pro: "Studies in animals have suggested that calcium may reduce the risk of colorectal cancer. We pooled the primary data from 10 cohort studies in five countries.

RESULTS: Milk intake was related to a reduced risk of colorectal cancer. CONCLUSION: Higher consumption of milk and calcium is associated with a lower risk of colorectal cancer."

Con:"New data from a long-term study suggest an association between consumption of higher quantities of dietary calcium and risk of prostate cancer... They [researchers] found a moderate elevation in risk of prostate cancer associated with higher intakes of dairy products and dairy calcium. The researchers also found that men who drank more than six glasses of milk per week had lower levels of the potentially protective form of vitamin D than men who drank fewer than two glasses of milk per week."