Parkinson's disease is treated with medicines and therapies led by a neurologist. There is no evidence that antioxidants or supplements slow the disease. Diet can still ease some everyday problems and help medicines work as well as possible. This is general information, and any change should be agreed with your care team.
What helps day to day
- For constipation, add fibre from fruit, vegetables, legumes and nuts, such as kiwi, prunes, figs and berries.
- Drink enough fluids through the day. If water worsens urinary urgency, take some fluid from cucumber, celery or soups.
- For low blood pressure, the NHS suggests smaller, more frequent meals, and your doctor decides about salt.
- Watch your weight. Report unintended weight loss to your doctor or dietitian.
- Move regularly. Physiotherapy helps with stiffness, walking and balance.
Protein and levodopa
Foods rich in protein or fat can slow levodopa. The Parkinson's Foundation says some people take the medicine 30 to 60 minutes before a meal or 1 to 2 hours after it. This does not mean cutting out protein. Change the timing of medicines and meals only with your doctor or dietitian.
Caution with supplements
The NHS warns that some herbal remedies, such as St John's wort, can interact with Parkinson's medicines. Use turmeric as a spice, not as a supplement without advice. Before any supplement, vitamin or iron, ask your doctor or pharmacist about interactions.
Sources: NHS Parkinson's Foundation.
Common questions
Can antioxidants slow Parkinson's disease?
There is no evidence for that. A varied diet supports general health, but it does not replace treatment.
Should I avoid protein?
No. Protein is needed. For some people a different timing of meals and medicine helps, which should be agreed with a doctor.
Before first use
Choose products for your dietary routine and care needs. Follow a healthcare professional’s advice for diagnosis and treatment of symptoms. Check suitability first during pregnancy and for use by children.

