A new theory

So it must be true?

Well I wouldn't go so far to say that just that thought Nellie would like a reference!!

You really need to read the comments made by the researchers who themselves are not yet drawing any firm conclusions about these figures.

www.theguardian.com/society/2015/apr/10/underweight-people-face-significantly-higher-risk-of-dementia-study-suggests

This appears so far, to just be a statistical finding and according to the article there has not been any further information which might suggest a possible cause of these findings. All it is at present is an observation on one study.

However our press just love to run with such a story in a way that probably makes the authors cringe.

Try reading Ben Goldacre's Bad Science blog.
www.badscience.net/about-dr-ben-goldacre/

Whitewave Not even I believe everything on the BBC. I do follow the Archers.

Looking at the age range covered in this report which appears to be 45-66
with a follow up of 6-12 years, I would think this is likely to be early onset dementia.
I also wonder how low fat diets have contributed because everyone needs healthy fats in their diet to maintain brain health.
The evidence for many of the suggested diets we are advised to follow (5 a day, low fat, low carbs) does not seem to be based on good factual data, but seems to be promoted by multi-national corporations who often fund the research.
Lets go back to moderation in everything we eat, portion control and a wide range of fresh foods. Limit processed foods and enjoy our food instead of feeling guilty about it.

Well said NanaDenise.
Agree with you too Nellie, I heard the lead researcher on the radio saying that it was only an association, and very far from being cause and effect.