Wiktionary
brain candy
n. (context idiomatic English) A narrative, commentary, etc. which amuses and holds one's attention, but which lacks intellectual depth or importance.
Usage examples of "brain candy".
I'm saying your patient may be off his brain candy and may be a schizo but he was fucking clever enough to lead us into a trap.
After he took himself off his brain candy, he snuck into the library and memorized the correct answers to each of those twenty-five tests and, I submit, honed his delivery pretty fucking well.