I remember seeing a paper about relationships between genetic addictive disorders, impulse control, and carbohydrate intake. Tried before finding it, but just can't remember the right terminology.

As somebody with a family history of addiction, I can confirm that I get all kinds of cranky without my carbs. Imho some brains just crave those constant dopamine kicks, losing all impulse control in the process, carb intake seems to play a role in that whole dynamic [0][1].

A couple of years ago I did some "metabolic balance" diet which was very low carb for a couple of months, mostly to treat my migraines. After initial irritation, I felt really good physically but I had a constant craving for all the tasty carb stuff, like white bread/noodles, wearing me down mentally. I don't think I could live like that for years.

[0] https://www.ncbi.nlm.nih.gov/pubmed/1349715

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3131727/

How low do you mean when you say low carb? And for how long? Whenever I first start doing keto I can be irritable, but after getting into ketosis I have much more self control (way more than when not dieting at all)