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Parkinson's medication, diet and supplements

Some planning of when to eat and when to take medication may be necessary for people with Parkinson's.

It is important to take medication on time, but it is also important to bear in mind that some food can interfere with Parkinson's drugs.

The effect of protein on Parkinson's medication

Eating a well balanced diet will provide adequate levels of vitamins and minerals for most people.

Karen Hyland, Specialist Dietitian

For some people, protein - found in meat, fish, eggs, cheese, yoghurt, nuts, beans and pulses - seems to interfere with the effectiveness of their levodopa medication.

Levodopa is the generic name of one of the drugs used to treat Parkinson's. Brand names are Madopar (co-beneldopa®), Sinemet (co-careldopa®), Stalevo® and Duodopa®.

Taking levodopa 45 minutes before meals, with a carbohydrate such as a cracker or a biscuit, can help to stop this happening.

It's best not to reduce the amount of protein you eat as it is an important part of a balanced diet. Reducing protein can cause weight loss.

If you do wish to review the timing of your protein intake, it's essential that you discuss it with your GP or a registered dietitian.

Referral to a dietitian is generally made through your GP, a consultant doctor or a specialist Parkinson's nurse.

You can read more on protein and medication in our Parkinson's and diet booklet.

To find out more about levodopa and other Parkinson's medication take a look at our Drug treatment of Parkinson's section.

Food supplements and Parkinson's

Food supplementsFood supplements can be useful to boost your intake of vitamins and nutrition, but only if you are not managing to eat enough food, due to nausea, loss of appetite or if you are underweight.

If you are a healthy weight for your height then food supplements should not be necessary.

If you choose to use some of the wide range of nutritional support products available, be sure to talk to your doctor or a registered dietitian. They can then prescribe the best supplements for you.

Fava beans and Parkinson's

A great deal has been written on the benefits of fava beans, also known as broad beans, for people with Parkinson's.

These claims are based on the discovery that the vicia faba plant, which produces fava beans, contains levodopa, a drug that is commonly used to treat Parkinson's.

Information on fava beans and their effect on Parkinson's is limited and largely based on anecdotal information.

It's important that anyone who is considering trying these beans discusses this with their GP first.

Vitamins, minerals, antioxidants and Parkinson's

Excessive amounts of antioxidant vitamin supplements can adversely affect your health and wellbeing, and may interfere with your Parkinson's medication.

Supplements are also expensive. A well-balanced diet will provide adequate levels of vitamins and minerals for most people.

Speak to a registered dietitian or your GP before considering vitamin or mineral supplements.

To arrange a referral to a dietitian talk to your GP, a consultant doctor or a specialist Parkinson's nurse.

Read more on antioxidants and dietary supplements in our Antioxidants and Parkinson's information sheet.

Research has shown that Coenzyme Q10 (CoQ10), a molecule present in the body that helps to turn food into energy and acts as an antioxidant, is often impaired in people with Parkinson's.

Our Coenzyme Q10 information sheet looks at the use of Coenzyme Q10 supplements for people with Parkinson's.

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