A new study from Harvard University suggests that eating too many eggs might increase the risk of developing certain types of cancer, especially cancers linked to hormones such as breast, ovarian, and fatal prostate cancer.
The research was published in the British Journal of Nutrition and was led by scientist N. Keum and their team. They looked at many earlier studies and used a method called dose-response meta-analysis.
This helped them explore how the number of eggs people eat may affect their chances of getting cancer. They focused on cancers that are influenced by hormones in the body.
The study showed that people who ate five or more eggs each week had a higher risk of breast cancer compared to people who didn’t eat eggs at all. A similar link was found for ovarian cancer and deadly prostate cancer. However, the study did not find any clear connection between eating eggs and prostate cancer in general—only the kind that leads to death.
The researchers made it clear that their findings do not prove eggs cause cancer. Instead, they noticed a possible pattern that needs more study. They believe it is important to understand why this connection might exist and whether other things, such as overall diet or lifestyle, could also play a role.
Eggs are a popular food all over the world. They provide high-quality protein, vitamins, and other nutrients that are good for health. But eggs also have cholesterol and other substances that could affect hormones or the body’s cancer-related processes.
Other studies have also looked into how eating eggs might be related to cancers that are influenced by sex hormones. However, scientists still don’t fully understand how or why this happens.
This new research adds more information to the ongoing debate about whether eggs are completely safe to eat in large amounts. While many people enjoy eggs as part of a healthy diet, the study suggests that eating them in moderation might be better—especially for people who are already worried about hormone-related cancers.
In the end, the message is not to be afraid of eating eggs, but to be thoughtful about how many you eat. This is especially important for people with a family history or personal concern about certain types of cancer.
Scientists say more studies are needed to figure out exactly how diet, lifestyle, and cancer are connected. Until then, eating a variety of healthy foods and staying informed can help people make smart choices about their health.
If you care about cancer, please read studies that a low-carb diet could increase overall cancer risk, and vitamin D supplements could strongly reduce cancer death.
For more information about health, please see recent studies about how drinking milk affects the risks of heart disease and cancer and results showing higher intake of dairy foods linked to higher prostate cancer risk.
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