Foods and moods

Although this topic comes under the domain of a psychiatrist,it is interesting for a layman(me!) as well.
Foods affect mood and the converse is also true.How often have we felt like grabbing something to eat or gone on an eating binge just to beat the stress of something stressful?
When we are depressed,we tend to go for carbohydrates and proteins.The term 'sugar rush' says it all
Chocolate,the staple of love:) releases endorphins which are hormones that make us feel good.These are also released in exercise.
Many foods that lack vitamins,if consumed for a long time cause deficiencies that can affect mental functions .
Carbohydrates release Serotonin and a host of other neurotransmitters.
Fats make the food palatable.Imagine having a pizza without cheese or a dosa without ghee!
Some articles on the relevant topics can be found here. 
http://www.nuggetize.com/reports/fc65a8974c6b40ab_foods%20affecting%20moods.html