How Soybean Can Reduce* the Risk of Prostate Cancer?

Soybean Can Reduce the Risk of Prostate Cancer
Editor's Note: This article has been recently updated with latest information and research studies.
 

Speaking of the most common kinds of cancers worldwide among the male population, prostate cancer ranks the first position. According to the American Cancer Society, it is the second most common cancer after that of the skin among males. Fortunately, this disease gets diagnosed in its early stages in most of the cases and so, mortality rate is controllable. In the United States alone, there are about 2 million cases of prostate cancer survivors till date. In this article we will help you know those prone to this cancer and how to reduce* the Risk of Prostate Cancer.

Who is at the Risk of Prostate Cancer?

Age, ethnicity and a positive family history are three important risk factors in the case of prostate cancer.

Age
According to Webmd.com, about 80 percent of the cases of this ailment are diagnosed in men who have reached around the age of 80 years. As you age, you might experience some signs of prostate cancer. The disease is quite rare in men below forty years.

Race
The Afro-Americans are more prone to develop prostate cancer as compared to any other racial group. The Latino Hispanics as well as the Asian Hispanics are particularly spared here, since these groups are relatively at a decreased* risk.

Family History
Anyone who has a positive family history for prostate cancer must certainly go for a genetic evaluation, since according to medical news today, a particular set of genes known as the BRCA-1 and BRCA 2, which are basically responsible for making one prone to develop ovarian and breast cancer, have also been observed to produce prostate cancer in genetically susceptible males.

Produce Prostate Cancer

What does Research have to say Regarding “Soybean for Prostate Cancer?”

We consume several food items in a day, being completely unaware of their nutritional values for most of the time, isn’t it so? Take the instance of soybean. How many of you already knew that the food has special cancer-fighting properties?

Prostate Specific Antigen (PSA) and Soybean:
It is a common phenomenon in patients of prostate cancer that they develop increasing* levels of PSA (prostate specific antigen) during the later prostate cancer stages. It is this very compound whose elevated presence in the blood plasma aids in making a diagnosis of the disease. Normal ranges of PSA levels nearly excludes the probability of prostate cancer.

Soy-containing products have been found to influence the PSA kinetics in few prostate cancer subjects. In a research work which is published in medscape.com, 10 male subjects affected with prostate cancer were treated with soy-containing products that are available commercially. These patients had increasing* PSA levels in blood as a consequence of the disease. They were already treated with radical prostatectomy and salvage radiotherapy.

What were the results? The patients were treated with soy products for around twenty-four months. It was observed that five out of ten test subjects, which means, 50% of the patients gained benefits.

Soy Products

Abnormal Cell-growth and Soybean:
Another research that was conducted in this regard proves that the isoflavones present in soybean are effective in preventing prostate cancer. Such a research work has been published in the “Japanese Journal of Clinical Oncology.”

In the study, the two potent isoflavone contents of soybean, namely, genistein and daidzein were tested. Genistein was observed to produce apoptosis and cell growth inhibition, a process which is essential to reduce* prostate cancer risk.

Daidzein for Prostate Cancer:
As mentioned earlier that daidzein is a potent isoflavone component present in soybean, thus it is also very effective when it comes to prevention of prostate cancer. A research work included about two hundred patients, as well as the same number of age-matched controls belonging to three different geographical areas of Japan. These subjects demonstrated that the higher is the intake of daidzein, the lower is the risk of prostate cancer.

Other Benefits of Soybean

Soybeans are a rich source of phytoestrogens. These compounds are well-known for their cancer-fighting properties. Recently, phytoestrogens have been an important part of biological and oncology research-works. Not only do they help in preventing prostate cancer, but are also effective against cancers that develop in relation to other sex hormones such as the ovarian and breast cancer.

Apart from phytoestrogens, soybean is a rich source of other nutrients, since they contain 35 % of dry weight protein (in case you were wondering why body builders consume more soy products, here is your answer). More to that, soybean contains huge amounts of alpha-linolenic acid and omega-3 fatty acids.

Soybean Rich Source

Conclusion

Asian foods contain much phytoestrogens as compared to the Western-style of diet. Hence to Risk of Prostate Cancer, make sure that your body is devoid of cancer-producing species, your plate should contain enough of green and other colored vegetables instead of red meat. The greater is your vegetable intake, the healthier you are, and the least is your risk of developing prostate cancer.

Apart from diet, your hygiene habits must also be proper, since keeping the organs clean also decreases* the chances of developing prostate cancer. Make sure that your habits of urination are good and regular.
In case you have a positive family history, get an evaluation and screening once you cross your forties.

References:

  • http://www.cancer.org/cancer/prostatecancer/detailedguide/prostate-cancer-risk-factors
  • http://cdn.intechopen.com/pdfs/39999/InTech-Soybean_and_prostate_cancer.pdf
  • http://www.ncbi.nlm.nih.gov/pubmed/19838933

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Author

Expert Author : Dr. Ahmed Zayed (Consumer Health Digest)

Dr. Ahmed Zayed Helmy holds a baccalaureate of Medicine and Surgery. He has completed his degree in 2011 at the University of Alexandria, Egypt. Dr. Ahmed believes in providing knowledgeable information to readers. Other than his passion for writing, currently he is working as a Plastic surgeon and is doing his masters at Ain shams University.