Studies that examined the link between milk consumption and increased cancer risk are very contradictory. The results differed depending on the type of cancer. Vitamin B metabolites and calcium are considered components that promote tumor growth in prostate cancer. Men who consumed more than 1.25 liters of milk appear to be at particular risk. On the other hand, there are conflicting results in terms of influencing colorectal cancer: some studies suggest a protective effect, others suggest an increased risk. So only a rumor or the truth?