A new study has found that consuming dairy products may increase the risk of developing certain types of cancer.

The study, published in the Journal of the National Cancer Institute, analyzed data from over 200,000 people and found that those who consumed high amounts of dairy had a higher risk of developing prostate, breast, and ovarian cancer.

The Study

The study analyzed data from two large health studies: the Nurses’ Health Study and the Health Professionals Follow-up Study.

Both studies began in the 1980s and collected data on lifestyle factors, including diet, from thousands of participants over several decades.

The researchers looked at the participants’ intake of dairy products, including milk, cheese, and yogurt, and compared it to the incidence of cancer among the participants.

The study found that participants who consumed the most dairy had a 34% higher risk of developing prostate cancer, a 39% higher risk of developing breast cancer, and a 44% higher risk of developing ovarian cancer, compared to those who consumed the least amount of dairy.

The Possible Link

While the study does not provide an exact mechanism for why dairy consumption may increase cancer risk, the researchers offer a few possible explanations.

One is that dairy products contain high levels of calcium and may decrease the body’s production of a hormone called 1,25-dihydroxyvitamin D, which has been shown to have anticancer properties. Another possible explanation is that dairy products contain growth hormones and other compounds that may promote the growth of cancer cells.

The study’s lead author, Dr. Yin Cao of Harvard T.H. Chan School of Public Health, stated, “Our findings support the concept that high intake of dairy may be associated with increased risk of certain cancers.

However, we need more studies to confirm the findings and to investigate the potential mechanisms.”.

What Does This Mean for Dairy Consumers?

While this study does suggest a possible link between dairy consumption and cancer risk, it is important to note that the study does not prove causation.

The study simply found an association between high dairy consumption and increased cancer risk, but it did not prove that dairy consumption actually caused the cancer.

It is also important to note that there are many other factors that can contribute to cancer risk, such as genetics, age, and lifestyle factors like smoking and physical activity.

So, even if dairy consumption does increase cancer risk to some degree, it is just one of many factors that can contribute to the development of cancer.

That being said, this study does suggest that people who consume high amounts of dairy may want to consider reducing their intake, especially if they already have risk factors for certain types of cancer.

Moderation is key, and it is always important to discuss dietary changes with a healthcare provider.

Alternative Sources of Calcium

For those who are concerned about reducing their dairy intake but still want to ensure they are getting enough calcium, there are many alternative sources of this essential nutrient. Some great sources of calcium include:.

Leafy green vegetables like kale, spinach, and collard greens
Sardines and canned salmon (with bones)
Almonds and other nuts and seeds
Tofu
Calcium-fortified plant milks and juices

By incorporating these foods into their diet, people can still get the calcium they need without consuming high amounts of dairy.

Conclusion

The new study suggests that high consumption of dairy products may increase the risk of developing certain types of cancer, including prostate, breast, and ovarian cancer.

However, the study does not prove causation, and there are many other factors that can contribute to cancer risk. People who consume high amounts of dairy may want to consider reducing their intake, but it is important to discuss dietary changes with a healthcare provider.

There are also many alternative sources of calcium for those who are concerned about reducing their dairy intake.