Quick Answer: Can Prostate Cancer Be Prevented?
There is no guaranteed way to prevent prostate cancer. Several of the strongest risk factors—age, ancestry, family history and inherited genetic variants—cannot be changed.
What you can do is improve overall health and possibly reduce the risk of aggressive disease by maintaining a healthy weight, staying physically active, avoiding tobacco, following a healthy eating pattern and avoiding unnecessary high-dose supplements.
PSA screening is not prevention. Screening aims to detect clinically significant cancer earlier, when curative treatment may be possible. The decision about when to begin and how often to test should be based on age, ancestry, family history, germline mutations, life expectancy and previous PSA results.
Prevention and Early Detection Are Not the Same Thing
This distinction is essential.
Prevention means lowering the chance that prostate cancer develops in the first place.
Screening or early detection means looking for cancer before symptoms appear so that clinically significant disease can be found earlier.
A PSA test does not prevent cancer from developing.
But appropriate PSA screening can reduce the risk of metastatic disease and prostate-cancer death in selected populations.
Which Prostate Cancer Risk Factors Cannot Be Changed?
| Risk factor | What current evidence shows |
|---|---|
| Age | Risk rises substantially with age. Prostate cancer is uncommon before age 50. |
| Black ancestry | Black men have a higher incidence of prostate cancer and a higher risk of dying from the disease than White men. |
| Family history | A father, brother or son with prostate cancer increases risk, especially when several relatives are affected or cancer occurred at a young age. |
| Inherited mutations | BRCA2 and other inherited variants can substantially increase the risk of clinically significant prostate cancer. |
These factors cannot be removed, but they can help determine when screening should begin and how intensively risk should be assessed.
Can Lifestyle Lower Prostate Cancer Risk?
The evidence is less certain than it is for cancers such as lung cancer and smoking.
The American Cancer Society states that there is no sure way to prevent prostate cancer and that the effects of body weight, physical activity and diet are not completely clear.
Still, a healthy lifestyle is sensible because it improves cardiovascular and metabolic health and may reduce the risk of aggressive or fatal prostate cancer.
1. Maintain a Healthy Weight
Obesity does not clearly increase the overall chance of being diagnosed with prostate cancer.
However, observational studies suggest that men with excess body weight may have a higher risk of:
- advanced prostate cancer;
- more aggressive disease; and
- dying from prostate cancer.
Maintaining a healthy weight also lowers the risk of diabetes, cardiovascular disease and several other cancers.
2. Be Physically Active
There is no exercise program proven to guarantee prostate-cancer prevention.
But regular activity helps with:
- weight control;
- blood pressure;
- insulin sensitivity;
- cardiovascular health;
- muscle maintenance; and
- overall cancer prevention.
A practical goal is to combine regular aerobic activity with resistance exercise according to age and health status.
3. Follow a Healthy Eating Pattern
No single “prostate diet” has been proven to prevent prostate cancer.
ACS currently recommends a general healthy eating pattern emphasizing:
- a variety of vegetables and fruit;
- whole grains;
- beans and other plant proteins;
- fish and other minimally processed protein sources; and
- healthy unsaturated fats.
It is sensible to limit:
- processed meat;
- frequent large portions of red meat;
- sugar-sweetened beverages; and
- highly processed foods.
For more detail, see our prostate cancer diet and nutrition guide.
Does Grilling Meat Cause Prostate Cancer?
The old version of this page stated that charcoal grilling causes a high prostate-cancer rate.
That is too definite.
Cooking meat at very high temperatures—especially grilling over an open flame, pan-frying or broiling—can create chemicals called:
- heterocyclic amines (HCAs); and
- polycyclic aromatic hydrocarbons (PAHs).
These compounds can damage DNA in laboratory models.
Some epidemiologic studies have linked high intake of well-done or grilled meat with prostate cancer, while other studies have found no association.
The practical message is not that one barbecue causes prostate cancer.
It is reasonable to:
- avoid repeatedly charring meat;
- trim burned portions;
- use lower-temperature cooking more often;
- limit processed and excessive red meat; and
- include more fish and plant proteins.
Do Antioxidants Prevent Prostate Cancer?
No general antioxidant strategy has been proven to prevent prostate cancer.
The idea that antioxidants “clean toxins out of the body” is not an accurate explanation of human cancer prevention.
The liver and kidneys already process and eliminate many metabolic waste products.
More importantly, randomized trials have shown that antioxidant supplements can fail—and in some cases cause harm.
Vitamin E: Do Not Take It for Prostate Cancer Prevention
The large SELECT randomized trial found that men who took vitamin E alone had a 17% relative increase in prostate-cancer risk compared with placebo.
Vitamin E supplements should therefore not be recommended to prevent prostate cancer.
Selenium Does Not Prevent Prostate Cancer
SELECT also found that selenium supplementation did not lower prostate-cancer risk.
Men should not take selenium supplements specifically to prevent prostate cancer.
What About Lycopene and Tomatoes?
Tomatoes are healthy foods and can be included in a balanced diet.
But NCI concludes that evidence for lycopene and prostate-cancer prevention is inconsistent.
Lycopene supplements have not been proven to prevent prostate cancer.
Does Soy Prevent Prostate Cancer?
Soy foods are nutritious plant-protein sources.
Some studies have suggested possible protective effects from soy isoflavones, but the evidence is not strong enough to recommend soy supplements as prostate-cancer prevention.
Whole soy foods can simply be part of a healthy diet.
Calcium and Dairy: Should Men Avoid Them?
Some observational studies suggest that very high dairy or calcium intake may be associated with a small increase in prostate-cancer risk.
But the relationship is not clear enough to recommend avoiding all dairy.
ACS advises avoiding excessive calcium intake, particularly unnecessary supplements.
This must be balanced against bone health, especially in men already receiving ADT, who may specifically need calcium and vitamin D under medical supervision.
Does Chronic Prostatitis Cause Prostate Cancer?
The old page presents chronic inflammation as though it creates “poisonous substances” that directly cause prostate cancer.
That is not established.
NCI notes that observational studies have sometimes found an association between prostatitis and prostate-cancer diagnosis, but prostatitis also raises PSA and can lead to more biopsies—creating detection bias.
A cause-and-effect relationship has not been established.
NCI patient guidance specifically states that prostatitis is not considered a prostate-cancer risk factor.
The same is true for BPH: benign prostate enlargement does not become prostate cancer and is not considered its precursor.
Do Male Hormones Cause Prostate Cancer?
Androgen signaling is essential to normal prostate biology and prostate-cancer growth.
Testosterone can be converted into dihydrotestosterone (DHT), which acts strongly on prostate tissue.
But that does not mean healthy men should suppress testosterone to prevent cancer.
Hormone suppression can cause:
- loss of libido;
- erectile dysfunction;
- bone loss;
- muscle loss;
- metabolic changes;
- hot flashes; and
- other significant adverse effects.
Can Finasteride or Dutasteride Prevent Prostate Cancer?
Finasteride and dutasteride are 5-alpha-reductase inhibitors (5-ARIs) that reduce conversion of testosterone to DHT.
Large prevention trials showed fewer prostate-cancer diagnoses among men taking these medicines.
NCI reports that in the Prostate Cancer Prevention Trial, finasteride reduced prostate-cancer incidence from about 24.4% to 18.4% over more than seven years.
However:
- the reduction was driven mainly by fewer low-grade cancers;
- it has not been shown that 5-ARIs reduce prostate-cancer mortality;
- they can cause sexual and breast-related adverse effects; and
- they lower PSA, which changes how screening results must be interpreted.
ACS notes that finasteride and dutasteride are not FDA-approved specifically to reduce prostate-cancer risk.
They should therefore not be started routinely as prostate-cancer prevention medicines.
Should Men Take Aspirin to Prevent Prostate Cancer?
No, not for this reason alone.
Some observational research has suggested a possible reduction in prostate-cancer risk or mortality among aspirin users.
But daily aspirin can cause gastrointestinal or other bleeding.
ACS states that most doctors do not recommend aspirin solely to lower prostate-cancer risk.
Aspirin should be taken when there is a separate cardiovascular or medical indication after considering bleeding risk.
Smoking and Prostate Cancer
Smoking is clearly linked to many cancers and cardiovascular diseases.
For prostate cancer specifically, most studies have not shown a strong association with simply developing the disease, but some research links smoking with a higher risk of prostate-cancer death.
Stopping smoking is therefore strongly worthwhile even though it cannot guarantee prevention of prostate cancer.
Alcohol
There is no strong evidence that simply avoiding alcohol will prevent prostate cancer.
But limiting alcohol supports:
- healthy weight;
- blood pressure;
- liver health;
- sleep; and
- overall cancer prevention.
Men should not start drinking alcohol for any supposed prostate benefit.
Screening: Early Detection, Not Prevention
The legacy article recommends an annual check-up for everyone after age 50.
Current guidelines use a more personalized approach.
AUA/SUO Approach
The AUA/SUO guideline states that clinicians may offer a baseline PSA at ages 45–50 for average-risk people.
For people at increased risk because of:
- Black ancestry;
- strong family history; or
- pathogenic germline mutations,
screening should be offered starting around age 40–45.
For ages 50–69, AUA/SUO recommends regular PSA screening approximately every 2–4 years, with intervals personalized according to PSA and risk.
EAU 2026 Approach
EAU recommends discussing early PSA testing from approximately:
- age 50 for men without other major risk factors;
- age 45 for men of African descent or with a family history of prostate cancer at a young age; and
- age 40 for BRCA2 carriers.
EAU also recommends risk-adapted follow-up intervals rather than automatic annual testing for everyone.
What About Digital Rectal Examination (DRE)?
DRE can provide useful additional information, especially when the prostate feels clearly abnormal.
But DRE is not a stand-alone prevention or screening test.
Modern early detection uses PSA as the primary blood test, with DRE as an adjunct in selected men.
Should a Newly Elevated PSA Immediately Lead to Biopsy?
Usually not.
AUA/SUO notes that a newly elevated PSA returns to a normal level on repeat testing in a substantial minority of men.
EAU 2026 now specifically recommends repeating PSA in asymptomatic men with a PSA between 3 and 10 ng/mL before moving on to further investigation.
If PSA remains elevated, modern evaluation may include:
- prostate MRI;
- PSA density;
- a validated risk calculator;
- selected blood/urine biomarkers; and
- biopsy when clinically indicated.
See our PSA test and prostate cancer screening guide.
Who Should Consider Genetic Counseling?
Genetic counseling or germline testing becomes particularly relevant when there is:
- more than one close relative with prostate cancer;
- prostate cancer diagnosed at a young age in the family;
- a relative who died from prostate cancer at a young age;
- known BRCA1/2 or other cancer-predisposition mutations in the family; or
- clusters of prostate, breast, ovarian, pancreatic or other hereditary cancers on the same side of the family.
Knowing about an inherited mutation does not prevent cancer, but it can change screening strategy and, if cancer develops, may influence treatment.
Can Prostate Cancer Vaccines Prevent Prostate Cancer?
No currently approved prostate-cancer vaccine prevents healthy men from developing prostate cancer.
Sipuleucel-T (Provenge) is a therapeutic cellular immunotherapy used for selected men who already have advanced prostate cancer.
It is not a preventive vaccine.
See prostate cancer vaccines and Provenge.
What Can You Realistically Do Today?
- Know your family history.
- Ask whether you have an inherited-risk indication for genetic counseling.
- Discuss the right age for your first PSA based on your risk.
- Maintain a healthy weight.
- Exercise regularly.
- Avoid tobacco.
- Follow a healthy plant-forward eating pattern.
- Limit processed meat, excess red meat, sugary drinks and highly processed foods.
- Avoid unnecessary vitamin E, selenium and high-dose “prostate protection” supplements.
- Do not use testosterone suppression, finasteride, dutasteride or aspirin solely for cancer prevention without individualized medical advice.
What Prevention Cannot Promise
Even a man who:
- exercises;
- eats well;
- never smokes;
- maintains a healthy weight; and
- takes no unnecessary supplements
can still develop prostate cancer.
That is because age, inherited biology and other mechanisms play major roles.
The goal is therefore to reduce modifiable risks where possible and detect clinically significant disease appropriately—not to blame patients when cancer occurs.
When a patient asks me how to prevent prostate cancer, I would begin by saying that there is no guaranteed prevention plan. Age, family history, ancestry and inherited genetic changes are important risk factors that no diet or supplement can erase.
I would still strongly encourage a healthy weight, regular exercise, no smoking and a plant-forward eating pattern because these measures improve cardiovascular and metabolic health and may also reduce the risk of aggressive disease.
I would be especially cautious with supplements. Vitamin E and selenium were once promoted for prostate protection, but the large SELECT trial showed no benefit from selenium and an increased prostate-cancer risk with vitamin E. “Natural” does not automatically mean preventive.
Finally, I would separate prevention from screening. PSA testing does not stop prostate cancer from forming, but appropriate risk-based screening can help detect clinically significant disease earlier. The right age and interval should be personalized rather than automatically testing every man once a year after age 50.
Dr. Albana Greca, MD, MMedSc
Family Physician / General Practitioner
Founder & Lead Medical Author, Prostate Treatment Options
Medical References
American Cancer Society. Can Prostate Cancer Be Prevented? Healthy weight, physical activity, diet, supplements, 5-alpha-reductase inhibitors and aspirin.
National Cancer Institute. Prostate Cancer Prevention PDQ: age, family history, race, hormones, finasteride/dutasteride, selenium, vitamin E, lycopene and dietary evidence.
American Urological Association / Society of Urologic Oncology. Early Detection of Prostate Cancer Guideline: baseline PSA, increased-risk screening and 2–4-year screening intervals.
European Association of Urology. Prostate Cancer Guidelines, 2026: individual early detection, risk-adapted PSA testing, repeat PSA and MRI-based evaluation.
National Cancer Institute. Chemicals in Meat Cooked at High Temperatures and Cancer Risk: HCAs, PAHs and mixed epidemiologic evidence.
Last evidence update: September 2026.
Medical information notice: No lifestyle strategy can guarantee prevention of prostate cancer. Screening decisions should be individualized according to age, ancestry, family history, inherited risk, PSA and life expectancy.