Unlock the Health Benefits: How Eating Yogurt Weekly Can Reduce Your Risk of Colon Cancer
Recent studies indicate that incorporating yogurt into your diet may substantially reduce the risk of certain types of colon cancer. The probiotics found in yogurt serve as beneficial agents for your gut microbiome and play a crucial role in mitigating inflammation, both of which are vital factors in colon cancer development.
A new study published in Gut Microbes suggests that routinely consuming two or more servings of yogurt each week can lead to lower rates of proximal colorectal cancer. This type of cancer is linked to a specific bacterium, Bifidobacterium.
As explained by Dr. Peyton Berookim from Cedars-Sinai Medical Center, “Yogurt is a source of probiotics that can directly influence the gut microbiome. Regular consumption of yogurt could increase the population of beneficial bacteria in the gut.”
Proximal colorectal cancer is found on the right side of the colon and is known to be more lethal than distal colon cancer, which develops on the left side.
According to the research findings, the Bifidobacterium type of colorectal cancer is relatively common, accounting for approximately one-third of all colorectal cancers, as stated by study author Dr. Shuji Ogino from Harvard’s T.H. Chan School of Public Health.
Understanding the Link Between Yogurt Consumption and Colon Cancer
While the health benefits of yogurt are well-documented, the specific connection to colon cancer risk had previously faced scrutiny. This study aimed to clarify that relationship by evaluating long-term dietary data from a broad participant base.
The researchers utilized information gleaned from two extensive longitudinal studies: the Nurses’ Health Study (NHS) and the Health Professionals Follow-up Study (HPFS). Initiated in the 1970s and 1980s, these studies have monitored the dietary habits of over 150,000 individuals, focusing on various factors, including sugar, alcohol, fiber intake, and yogurt consumption.
Through this research, scientists collected tissue samples to pinpoint which participants went on to develop colorectal cancer. Ultimately, data from over 132,000 participants were analyzed.
From this analysis, the researchers found that among participants diagnosed with colorectal cancer, 31% were positive for Bifidobacterium, whereas 69% tested negative.
The researchers then employed multivariable-adjusted hazard ratios (a statistical method for evaluating risk) to investigate the potential link between yogurt consumption and colorectal cancer. While eating two or more servings of yogurt weekly did not correlate with a reduced risk of colorectal cancer in general, it was associated with a 20% lower risk of developing the Bifidobacterium-positive type.
Should You Increase Your Yogurt Consumption?
Although the research shows promise, it is essential to note that the connection between yogurt intake and colorectal cancer risk is still being explored. The research is in its early stages and presents some notable limitations.
- It remains uncertain whether the study establishes a causative relationship or merely an association.
- The researchers relied on self-reported dietary habits, which could lead to inaccuracies.
- The participant base (health professionals) predominantly consisted of white individuals, raising questions about the findings’ applicability to the wider population.
Nonetheless, there is growing evidence that the live and active cultures in yogurt and other fermented foods can positively influence gut health. Dr. Berookim noted, “Consuming yogurt regularly may contribute to a balanced gut microbiome.” A balanced microbiome may help reduce inflammation and dysbiosis, both of which have been associated with the development of colon cancer.
Including probiotic-rich foods, such as yogurt, could be a valuable addition to your overall healthy lifestyle. However, it’s crucial to remember that yogurt consumption—and diet in general—is just one potential factor in preventing colon cancer. Various elements such as genetics, physical activity, alcohol consumption, body weight, environmental factors, and more may influence cancer risk.
If you choose to increase your yogurt intake, experts unanimously suggest opting for varieties with minimal added sugars. Dr. Berookim cautioned, “Many flavored yogurts contain added sugars, which can negate the health benefits of the probiotics and other nutrients. Excess sugar can lead to weight gain, inflammation, and a heightened risk of metabolic conditions—factors often linked to an increased risk of certain cancers, including colon cancer.”
