Medically reviewed by Mr Maneesh Ghei, Consultant Urological Surgeon (GMC: 5208045)

If you have been told your PSA is high, it is natural to want to bring it down. Lifestyle changes including diet, exercise and weight management can help reduce PSA levels over time — but how much depends on the underlying cause. The most important first step is understanding why your PSA is elevated, because not all high PSA results need the same response. Some require specialist review regardless of lifestyle changes.

What causes high PSA?

High PSA can result from several conditions, not just prostate cancer. Common causes include:

• Benign prostatic hyperplasia (BPH) — non-cancerous prostate enlargement
• Prostatitis — inflammation of the prostate, often from infection
• Recent sexual activity or vigorous exercise before the test
• Certain medications, particularly 5-alpha-reductase inhibitors and testosterone therapy

Knowing the possible reason for your high PSA is the first step in taking the right action. If levels are slightly elevated and the cause appears benign, your doctor may suggest monitoring alongside lifestyle changes. If levels are persistently high or rising quickly, further investigation is needed regardless of lifestyle.

Related read: What Is A Dangerous PSA Level?

How to lower PSA levels through diet

Several dietary approaches have been linked to better prostate health and lower PSA levels:

Eat more lycopene-rich foods

Lycopene is an antioxidant found in tomatoes, watermelon, pink grapefruit and papaya. Research suggests lycopene may help reduce PSA levels and slow prostate cell growth. Cooked tomatoes (tomato sauce, passata) deliver lycopene more effectively than raw tomatoes.

Follow a Mediterranean-style diet

A diet rich in vegetables, fruit, whole grains, olive oil, fish and legumes has been consistently associated with lower inflammation and better prostate health. Reduce red meat, processed foods and full-fat dairy where possible.

Include green tea and soy

Both green tea (containing EGCG) and soy-based foods (containing isoflavones) have shown modest benefit in some studies on PSA and prostate health. These are not replacements for medical treatment but are reasonable additions to a prostate-healthy diet.

How to lower PSA levels through exercise and weight management

Obesity is associated with higher PSA levels and increased prostate cancer risk. Regular moderate exercise — at least 30 minutes five times a week — helps reduce systemic inflammation, supports immune function, and can contribute to PSA reduction over time. Even a modest reduction in body weight if you are overweight can have a meaningful effect.

If you are based in London and concerned about your prostate health, Mr Maneesh Ghei consults privately at The Wellington Hospital, St John’s Wood. No GP referral is needed and same-week appointments are usually available.

What to avoid before a PSA test

Some activities temporarily raise PSA and can make a normal result look elevated. To get the most accurate reading:

• Avoid ejaculation for at least 48 hours before the test
• Avoid vigorous exercise, particularly cycling, for 48 hours before the test
• Tell your doctor about any current medications, especially 5-alpha-reductase inhibitors
• Avoid a DRE (digital rectal examination) immediately before the blood draw

Related read: What Not To Do Before A PSA Blood Test

When lifestyle changes are not enough

Lifestyle changes can help manage PSA caused by BPH or inflammation, but they will not lower PSA caused by prostate cancer. If your PSA is persistently elevated, rising quickly, or above the normal range for your age, you need specialist assessment regardless of diet and exercise. According to NHS guidance on prostate cancer, an elevated PSA should always be investigated properly rather than managed with lifestyle changes alone.

Frequently Asked Questions

How to lower PSA levels quickly?

If your PSA is temporarily elevated due to recent sexual activity, exercise or a UTI, avoiding those triggers and retesting after a few weeks is the fastest route to a lower reading. However, if PSA is genuinely elevated due to BPH or prostatitis, improvements from diet and exercise take weeks to months. There is no quick fix for structurally elevated PSA — specialist assessment is the right starting point.

Can diet lower PSA levels?

Yes, to a degree. Diets rich in lycopene, vegetables and healthy fats have been associated with modest PSA reductions in men with BPH or prostatitis-related elevation. Diet is unlikely to significantly lower PSA driven by prostate cancer, which is why identifying the cause first matters.

Does exercise lower PSA?

Regular moderate exercise is associated with lower inflammation and modestly lower PSA levels over time, particularly in overweight men. Avoid vigorous cycling or exercise that puts pressure on the prostate within 48 hours of a PSA test, as this can temporarily raise the reading.

What is the fastest way to lower PSA before a test?

Avoid ejaculation and vigorous exercise for 48 hours before your test, ensure you have no active UTI or prostate infection, and disclose all medications to your doctor. These steps ensure your result reflects your baseline rather than a temporary spike.

Will losing weight lower my PSA?

Evidence suggests that obesity is associated with elevated PSA and higher prostate cancer risk. Weight loss through diet and exercise may contribute to modest PSA reductions over time, particularly if inflammation is a factor. However, weight loss alone is not a substitute for clinical investigation of a high PSA.

When should I see a specialist about high PSA?

You should see a specialist if your PSA is above the normal range for your age, rising over successive tests, above 10 ng/mL, or if you have symptoms such as urinary difficulties, blood in the urine or pelvic pain. Mr Ghei offers private consultations with same-week availability and no GP referral required.

Where can I see a private prostate specialist in London?

Mr Maneesh Ghei is a consultant urological surgeon with a specialist interest in prostate conditions. He sees patients privately at The Wellington Hospital, Platinum Medical Centre, St John’s Wood, London NW8 7JA. No GP referral is required and same-week appointments are available.

About the Author

Mr Maneesh Ghei, Consultant Urological Surgeon (GMC: 5208045)

Mr Maneesh Ghei is a consultant urological surgeon with NHS and private practice across four London hospitals. He specialises in the diagnosis and management of prostate conditions including BPH, prostatitis and prostate cancer, as well as urinary symptoms, kidney stones and male sexual health. Mr Ghei sees new patients privately with same-week availability. No GP referral is required. Book a prostate screening consultation.