A recent study from the United Kingdom has revealed that a daily intake of 300 milligrams of calcium can significantly reduce a woman's risk of developing colorectal cancer. The research, published in Nature, indicates that this amount—equivalent to a glass of milk—can lower the risk by approximately 17%. Conducted over 16 years and involving more than half a million women, the study highlights the potential protective effects of dairy products and calcium supplements against bowel cancer. However, researchers caution that not all dairy products offer the same benefits, with cheese and ice cream showing no significant impact on cancer risk.

The findings underscore the importance of calcium in mitigating the risk of colorectal cancer. Led by Dr. Keren Papier from Oxford University and Cancer Research UK, the study examined the dietary habits and health outcomes of over 542,000 women. Researchers discovered that calcium may protect against cancer by binding to bile acids and free fatty acids in the colon, reducing their potentially harmful effects. This binding action is believed to diminish the carcinogenic properties of these substances, thereby lowering the risk of developing colorectal cancer.

In addition to calcium's protective role, the study also identified other factors influencing cancer risk. Higher consumption of red and processed meats was associated with an increased risk, particularly for processed meats, which showed a stronger correlation. Alcohol consumption was also found to raise the risk by 15%. These findings emphasize the importance of a balanced diet in maintaining overall health and reducing the likelihood of developing colorectal cancer.

While the study primarily focused on dairy milk as a source of calcium, experts note that alternative sources are available for those who do not consume animal products. Dr. Lisa Wilde from Bowel Cancer UK suggests that individuals can obtain sufficient calcium from plant-based foods such as broccoli and tofu. This flexibility in dietary choices allows people to reduce their cancer risk while adhering to personal or dietary preferences. Ultimately, the study provides valuable insights into the role of nutrition in preventing colorectal cancer, highlighting the significance of calcium-rich diets in promoting better health outcomes.