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Link between unhealthy eating and mental ill health

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Old 01-16-2006, 08:51 AM   #1
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Default Link between unhealthy eating and mental ill health

I thought this was interesting reading - published in a UK national newspaper today. Its not a surprise to me, since I work in the mental health field, and my brother has a serious long term mental illness, but it helps to see it in black and white.

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, 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.

"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.

Best choices and worst:

Good for the brain:

Vegetables, especially leafy
Seeds and nuts
Whole grains
Organic eggs
Organic farmed or wild fish, especially fatty fish

Bad for the brain:

Deep fried junk foods
Refined processed foods
Tea and coffee
Some additives
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Old 01-16-2006, 10:27 AM   #2
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It's a very interesting article and an important topic. I won't deny the benefits of healthy eating vs. unhealthy. But be careful not to confuse a "link" between eating and mental health (a correlation) with a claim that bad eating CAUSES poor mental health. There could be other reasons why a country like Japan has lower rates of mental illness (such as the stigma associated with mental illness). And while the article discusses a therapy that involves healthy eating, we don't know the extent to which the therapy was evaluated scientifically, or that people aren't just seeing what they want to see in these cases.

Again, I'm not saying that eating healthy is a bad idea. And I'm not saying there isn't a relationship between eating well and mental health, but that we can't necessarily make the causal leap. I just get nervous with how research gets presented to the public, because everything sounds so cut and dried. Mental health is complex, we still don't know everything about how it works, and we have to be careful not to lay all the blame on fritos and potato chips. We might be doing people a disservice in the end if we assume shizophrenia can be cured with a diet change.

My 5 C's of healthy living: Commitment to conscious control, with the understanding that choices have consequences
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Old 01-16-2006, 01:55 PM   #3
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Thanks for the article - it was an intersting read.

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Old 01-16-2006, 04:31 PM   #4
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i just saw a thing on some news program that said coffee is GOOD for the brain so now i'm wondering which is which... but then again as with everything it starts out being good or bad and then a while later its the opposite.
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Old 01-16-2006, 09:29 PM   #5
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Thanks for the article. Very interesting!

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