Hi Daibell,
Thanks for your reply - there's some stuff in there about diabetes I didn't know. Glad to see that the low carb idea is flourishing here. I am interested by the idea that 'metabolic syndrome' - i.e obesity, type 2 diabetes and heart disease are in many cases connected to the growth in mood problems and depression in our society. Many people with clinical depression are experiencing good results from switching to a real food diet free of processed foods, and this is naturally lower in carbs, as well as being higher in nutrients from the veg, fruit and meat/fish. Something like a paleo diet is what I recommend people to try. We know that the modern diet high in refined foods overloads the body with carbs and it is likely the cause of a lot of depression due to the unstable blood sugar. We also know that lots of refined carbs alter the types of bacteria in our gut which can greatly affect our mood and energy levels. Gut health is a crucial area and there needs to be more research.
I am an outlier in terms of the work I'm doing, but there was a great book published as far back as 2000 by MIND, written by Amanda Geary, called 'Food and Mood' which explored a lot of these ideas.