The disease tends to develop slowly, so there may not be any signs of the cancer for years.
You could lower your risk of prostate cancer by exercising regularly and by losing weight, if you’re obese.
But, adding foods rich in lycopene and calcium to your diet could lower your risk of the deadly disease.
“There is evidence that a diet high in calcium is linked to an increased risk of developing prostate cancer,” said the NHS.
“In addition, some research has shown that prostate cancer rates appear to be lower in men who eat foods containing certain nutrients including lycopene, found in cooked tomatoes and other red fruit, and selenium, found in brazil nuts.”
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Tomatoes are rich in the antioxidant lycopene.
The nutrient may help to prevent prostate cancer, as well as reduce tumour growth in patients with the disease.
“Lycopene may decrease cell damage and slow cancer cell production,” said medical website Healthline.
“But, because lycopene is tightly bound to cell walls, our bodies have a difficult time extracting it from raw tomatoes.
“Cooked or pureed tomato products may be better options.”
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Cruciferous vegetables may help to lower your risk of developing prostate cancer, studies have claimed.
Broccoli contains the phytochemical sulforaphanate, which some scientists think targets and kills cancer cells.
“Higher consumption of vegetables in general may protect against some diseases, including some types of cancer,” said the National Cancer Institute.
But, more research is needed to confirm the link, it added.
Soy is rich in phytoestrogens, which some studies have claimed prevents certain types of cancer - including prostate cancer.
“Legumes, such as beans, peanuts, and lentils, contain biologically active plant compounds known as phytoestrogens,” said Healthline.
“Isoflavones are one such phytoestrogen. They may contain cancer-fighting properties.
“This could suppress tumour growth in prostate cancer cells.”
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Prostate cancer: Pomegranates are rich in antioxidants
Pomegranates are packed full of antioxidants, which target prostate cancer cells, scientists have claimed.
“Much like red wine or green tea, pomegranate is a rich source of antioxidants,” said Healthline.
“It’s been touted as a ‘miracle fruit’ in preventing chronic diseases related to oxidative stress.”
Brazil nuts contain the nutrient selenium, which may work to destroy prostate cancer cells, some studies have reported.
Other foods rich in selenium include tuna, beef, chicken and spinach.
“Selenium may also play a role in cancer,” said the National Cancer Institute.
“Animal and epidemiological studies have suggested there may be an inverse relationship between selenium supplementation and cancer risk.”