The study found that a higher intake of fermented soy products, such as miso and natto – staple items in the Japanese diet – is associated with a lower risk of death.
In Asian countries, especially Japan, several types of soy products are widely consumed, such as natto (soybeans fermented with Bacillus subtilis), miso (soybeans fermented with Aspergillus oryzae), and tofu (soybean curd).
Researchers had hitherto not established a link between soy products, especially fermented soy products, and specific health effects.
To remedy this, a team of researchers in Japan set out to investigate the association between several types of soy products and death from any cause (“all cause mortality”) and from cancer, total cardiovascular disease (heart disease and cerebrovascular disease), respiratory disease, and injury.
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