Fat and intelligence

Some studies are said to state a negative correlation between intelligence and fatness. Ignoring the hunters belief in their own impeccable objectivity, I still have to wonder about this. Whilst I don't believe for one minute that fat people are less intelligent than slim people (they wish). I do think the stress of the way fatness is treated can place undue pressure on your capacity to make good on the intelligence you do have.

There is also a possible metabolic aspect concerning the functioning of  the delivery of energy to the brain.

This is can be brought on by dieting, which cuts down the amount of ready energy available to your body as a whole. Though the brain is favoured to some extent, it can still pose a threat shown by feeling lightheaded and faint.
 
In the aftermath, it may not fully recover from that husbanding of energy. It makes me wonder of its implicated in certain mental crises such as depression and even psychosis, especially together with other sources of stress.

Up to 20% of your overall energy is used solely to fuel your brain and if fatness in part reflects changes in the body's ability to convert food into energy efficiently, the brain could be affected. I think it varies hugely, it may be filtered through genes, through your learning style and emotional history.

A new study in Proceedings of the National Academy of Sciences USA indicates that two thirds of the brain's energy budget is used to help neurons or nerve cells "fire'' or send signals. The remaining third, however, is used for what study co-author Wei Chen, a radiologist at the University of Minnesota Medical School, refers to as "housekeeping," or cell-health maintenance.

Electrical activity is the brain working, so this split is fascinating. I'd have thought that would be involved in every action it carries out including that of maintenance.

The position of being an 'obese' is itself an intellectual assault. Being one puts you in the position of someone with low intelligence or inexperience. You are expected to be told what you are.  Both acting out the part and the way others respond and talk to you. Ignoring what you say to the extent that it feels as if you haven't said it. Can become incredibly under stimulating.

The way people speak to elderly folk in a patronizing tone as if they are simple. There is a tone which people speak to fat people as 'obeses' that is reminiscent of those who have mental functioning problems. The construct of an 'obese' has no inner mind of their own. They have to be told what to do, what to eat, which a baby can do, by everyone else, rather than experts.

the position of repeatedly not knowing what everyone else knows is the position of someone who's mental functioning is low.

This produces an 'obese' tone that can make inroads into people's thinking.
 more capable of higher intellectual faculties.