Vegetarians who eat fish could be greatly reducing their risk of colon cancer

Dropping red meat, and sticking to a plant-based diet that incorporates fish may be the key to preventing colorectal (colon and rectum) cancers, according to a seven-year study published Monday. Pescetarians, as they are commonly referred, had a 43% lower chance of getting the cancer compared to people with omnivorous diets.

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Why focus on colorectal cancer? It is the third most diagnosed cancer, and the third leading cause of cancer-related death in the US in 2014, according to American Cancer Society statistics. The disease is particularly dangerous because it is usually asymptomatic in its early stages, making it more difficult to detect when it’s less deadly. Only 59% of those recommended for screenings receive procedures that are in line with the American Cancer Society’s standards.

The study, which followed nearly 78,000 people and was published in the Journal of American Medical Association, adds to the growing body of evidence touting the health benefits of a plant-based diet. Another study, reviewing data from 39 separate studies showing that a plant based diet leads to an average drop in blood pressure similar to 30-60 minutes of exercise per day.

Nutritionist Lisa Drayer agrees. “In addition to other dietary factors, fish may provide added protection from its high content omega-3 fatty acids. This is consistent with previous research that has found omega-3s have anti-cancer activity and that they may be helpful in the prevention and treatment of colorectal cancer.”

But despite the caveat, Drayer is optimistic. “While the study is observational and cannot prove a cause/effect relationship, it is exciting to think that in addition to regular screenings, a diet rich in fish and fiber-rich foods may play an important role in reducing the risk of colorectal cancer.”

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