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Soya: the health protector - The health effects of Soya

Prostate Cancer


Prostate cancer
The low rates of prostate cancer seen in Asian countries have encouraged scientists to look at the role soya plays in this and other hormone-related cancers. Prostate cancer rates vary widely around the world, tending to peak in developed, wealthy countries. Japan is the exception, where prostate cancer rates are surprisingly low despite the high standard of living. Some evidence suggests that dietary soya may be responsible.

In 1998, a large-scale study across 59 countries concluded that soya products were significantly protective against the disease (Hebert et al., 1998). This study found that men eating an affluent diet, including dairy milk, meat and poultry, were more likely to die from prostate cancer than those eating a diet based on cereals, soya beans, nuts and oilseeds.

More recently, another study showed how soya foods could lower the risk of prostate cancer by up to 26 per cent. Interestingly, this research found that while non-fermented soya foods, such as tofu and soya milk, lowered the risk, fermented ones such as miso and soya sauce, did not (Yan and Spitznagel, 2009). So, there are no human studies that show an increased risk of cancer due to soya but plenty of evidence suggesting that it provides protection.

 

The Soya Story - Contents


Resources:


The Soya Story
Read the online version of our guide to soya
Download the pdf
Buy the guide

The Safety of Soya
Read our fully-referenced soya fact sheet
Download the pdf
Buy the factsheet

Soya-Based Infant Formula
A safe alternative to cow's milk formula
Download the pdf

The Soya Saga
Should we be running scared or welcoming this little bean into our hearts and stew pots?
Read this article on soya from VeggieHealth issue 4

Myth-Busting
The VVF examines the soya scare-mongering stories and investigates what, if any, scientific basis there is behind them

Soya and the Environment
Soya farming is devastating the Amazon, but where does all the soya go? It's not for human consumption…

FAQs
What worries you most? Read some of our most frequently asked nutritional enquiries

Soya research
Read the scientific evidence for yourself…

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