Eating mushrooms three times a week cuts the risk of prostate cancer by nearly a fifth, a study suggests. Researchers in Japan found the fungi contain compounds that suppress a male hormone that boosts the cancer’s growth. The claim follows a study that followed more than 36 000 men, aged 40 to 79, over 13 years. Eating mushrooms just once or twice a week cut prostate cancer risk by 8%, the team found.
A total of 36,499 men, aged 40 to 79 years who participated in the Miyagi Cohort Study in 1990 and in the Ohsaki Cohort Study in 1994 were followed for a median of 13.2 years. During follow-up, 3.3% of participants developed prostate cancer. Compared with mushroom consumption of less than once per week, consumption once or twice a week was associated with an 8% lower risk of prostate cancer and consumption three or more times per week was associated with a 17% lower risk.
Those who ate mushrooms three times a week cut the likelihood of the disease by 17%. The effect was especially pronounced in men aged 50 or over, and in those with a low fruit and vegetable intake as well as a high meat and dairy intake. “Participants who consumed mushrooms frequently tended to be older, spend more time walking and have a higher intake of meat, vegetables, fruit, dairy products and energy. They were also less likely to be current smokers.””Since information on mushroom species was not collected, it is difficult to know which specific mushroom(s) contributed to our findings