Not an expert on derealization

Here are some articles.
Psych Central - Search results for Derealization dealing with

My own experiences make me wonder if diet could be a contributing factor.

Do you have protein with every meal ?(the brain requires protein to function correctly)

Do you have a high carbohydrate diet? (in hypoglycemia can produce delusions or disconnectedness or depression)

Curious what you might say to diet issue.