Rise in mental illness linked to unhealthy diets, say studies

[Guest guest]

Rise in mental illness linked to unhealthy diets, say studies

 

· Patients benefit by cutting intake of junk food

· NHS warned of rise in £100bn bill

 

Felicity Lawrence

Monday January 16, 2006

The Guardian

 

Changes in diet over the past 50 years appear to be an important factor behind

a significant rise in mental ill health in the UK, say two reports published

today.

 

The Mental Health Foundation says scientific studies have clearly linked

attention deficit disorder, depression, Alzheimer's disease and schizophrenia

to junk food and the absence of essential fats, vitamins and minerals in

industrialised diets.

 

A further report, Changing Diets, Changing Minds, is also published today by

Sustain [link below], the organisation that campaigns for better food. It

warns that the NHS bill for mental illness, at almost £100bn a year, will

continue to rise unless the government focuses on diet and the brain in its

food, farming, education and environment policies.

 

http://www.sustainweb.org/news_detail.asp?iEve=135 & iType=1082

 

" Food can have an immediate and lasting effect on mental health and behaviour

because of the way it affects the structure and function of the brain, "

Sustain's report says. Its chairman, Tim Lang, said: " Mental health has been

completely neglected by those working on food policy. If we don't address it

and change the way we farm and fish, we may lose the means to prevent much

diet-related ill health. "

 

Both reports, which have been produced collaboratively, outline the growing

scientific evidence linking poor diet to problems of behaviour and mood.

Rates of depression have been shown to be higher in countries with low

intakes of fish, for example. Lack of folic acid, omega-3 fatty acids,

selenium and the amino acid tryptophan are thought to play an important role

in the illness. Deficiencies of essential fats and antioxidant vitamins are

also thought to be a contributory factor in schizophrenia.

 

A pioneering nutrition and mental health programme, thought to be the only one

of its kind in Britain, was carried out at Rotherham, South Yorkshire.

According to Caroline Stokes, its research nutritionist, the mental health

patients she saw generally had the poorest diets she had ever come across.

" They are eating lots of convenience foods, snacks, takeaways, chocolate

bars, crisps. It's very common for clients to be drinking a litre or two of

cola a day. They get lots of sugar but a lot of them are eating only one

portion of fruit or vegetable a day, if that. "

 

The therapy includes omega-3 fatty acids and multivitamins, with advice on

cutting out junk food and replacing it with oily fish, leafy vegetables for

folic acid, Brazil nuts for selenium, and food providing tryptophan.

 

Some patients who resist treatment with drugs accept nutritional therapy and

most have reported an improvement in mood and energy. Ms Stokes said: " Within

the first month there's been a significant reduction in depression. We've had

letters from [the patients'] psychiatrists saying they can see a huge

difference. "

 

One sufferer who benefited from a dietary change was James McLean, who was at

university when first diagnosed with bipolar disorder (manic depression).

After he had been sectioned repeatedly, his father read about the role of

nutrition in mental health. The pair went privately to the Brain Bio Centre,

in London, where Mr McLean's nutrient levels were checked; he was allergic to

gluten and yeast and was given supplements, including vitamin B and essential

fatty acids.

 

" I'd been eating lots of intense carbohydrate foods ... because they were

cheap, and very little fruit or vegetables, " Mr McLean said. Now, he excludes

wheat from his diet too. He added: " I have more energy and confidence, I

sleep better, and I came off the anti-psychotic drugs, although I still take

mood stabilising ones. "

 

Andrew McCulloch, chief executive of the Mental Health Foundation,

acknowledged that mental illness results from a complex interplay of

biological, social, psychological and environmental factors, but thought diet

should be an everyday component of mental health care. " It costs £1,000 a

week to keep someone in a psychiatric hospital. How much does good food cost?

We need mentally healthy school meals, and mentally healthy hospital foods, "

he said.