# Nutrition for metastatic prostate cancer
Malnutrition and muscle breakdown
In metastatic prostate cancer, unintentional weight loss and muscle breakdown can occur. This mainly occurs when the disease is advanced or when certain treatments cause side effects that make eating difficult (such as tiredness, nausea, or changes in taste). Research shows that men with metastatic prostate cancer who have a poorer nutritional condition respond less well to treatment.
ProveniIncluded in official guidelines, or approved by EMA or FDA
A dietitian can help put together a nutrition plan that:
- Contains enough calories and protein to maintain muscles as much as possible
- Matches what you can eat at that time
- Takes your treatment into account
This is extra important because muscle wasting (sarcopenia) affects quality of life and makes the body less able to cope with treatment.
Anti-inflammatory eating
Research from Swedish populations suggests that a diet high in vegetables, fruit, whole grains and whole grains — which is usually anti-inflammatory — is associated with better chances of survival in urological cancers, including prostate cancer.
ResearchediPositive results in clinical studies, not yet standard treatment
However, this is observational research: it shows a connection but does not prove that the diet itself is the cause.
An anti-inflammatory diet may be useful in general:
- Lots of fruit and vegetables (different colors)
- Whole grains instead of white grains
- Oily fish (omega-3 fatty acids)
- Nuts and seeds
- Olive oil
- Limiting red meat, sugar and highly processed products
Talk to your dietitian about how this fits your situation, especially if you have other conditions or have difficulty tolerating certain foods.
Weight and physical activity
There is research into the effect of diet and exercise together. Men with prostate cancer who focused on healthier diets and more exercise, and thus lost weight, reported better quality of life.
ResearchediPositive results in clinical studies, not yet standard treatment
Maintaining weight or losing weight healthy (if you're overweight) can probably help, but this should be done carefully and under supervision — it's best to monitor this by your therapist or dietitian.
Heart vulnerability and nutrition
Men on androgen deprivation therapy (ADT, hormone treatment) are more likely to have heart problems. Studies in India and elsewhere recommend keeping a close eye on cardiovascular health. This also applies to food:
- Limit salt
- Reduce saturated fats
- Check blood pressure regularly
Make sure your therapist knows about all the dietary choices you make, especially if you're considering supplements.
Supplements and herbs
Some herbs and plant compounds (such as Fagonia cretica) are being investigated in laboratory studies for possible anti-cancer effects.
ExperimentaliOngoing in study setting, outcome still unknown
This has not yet been studied in patients with prostate cancer.
Many men use supplements, but:
- Many supplements may interact with cancer treatments
- The evidence for effectiveness is usually weak
- Some may be harmful
**Always talk to your doctor or dietician before taking supplements** — including herbal supplements, fish oils, vitamin pills, or special “cancer ideas”. This includes popular dietary supplements that you can buy without a prescription.
Side effects of treatment that make eating difficult
Hormone therapy (ADT) and chemotherapy may cause side effects:
- Nausea, vomiting
- Changed taste or changes in taste
- Fatigue (making food preparation difficult)
- Heat phenomena (heat waves)
ProveniIncluded in official guidelines, or approved by EMA or FDA
For every side effect, dietary adjustments are possible:
- Small, regular meals instead of three large ones
- Cold or neutral temperature sometimes helps with taste changes
- Moist, soft food if swallowing is painful
- Sufficient fluid intake (water, tea, broth)
Your care provider or dietitian can give you practical advice tailored to what you can eat.
Preventing underweight
If you eat less and lose weight due to side effects or illness, a dietitian can help with:
- More nutritious snacks
- Drinking meals (if eating is too tiring)
- Advice on when you eat best (e.g., when you feel less nauseous)
This is not simply "eating more", but targeted nutrition adapted to your physical condition and treatment.
Summary
The main findings are: take malnutrition seriously, anti-inflammatory diet appears beneficial, cardiac vulnerability should be monitored, and treatment side effects should be addressed specifically. Supplements and special diets without medical consultation remain risky.
For all your personal dietary choices, especially with advanced prostate cancer and multiple treatments, guidance from your doctor and a dietitian is essential.
---
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._