The analogy is perfect IMO. And it goes deeper:

Typically when you’re missing some micronutrient you tend to eat more, since your body assumes you’ll eventually get enough of that micronutrient this way. But if you keep eating junk food all the time, no matter how much you eat, that nutrient won’t be there; so you end overweight and malnourished at the same time.

I believe the same applies to information. The “information” we need is actually multiple things: we need cathartic things, thought-provoking things, info on the state of people we care about, useful info that directly improves our lives, info about the dangers and opportunities out there… we need all those things, and a lot more.

However our brains won’t crave for all of them equally. For example, cathartic content - that makes you release strong, bottled up emotions - is as addictive as fat. It’s that cute cat pic that makes you “aww”, it’s someone getting wrecked for Schadenfreude, it’s the “main character of the day” to direct your hate towards. And, sure, you do need catharsis - much like you need fat - but you don’t need that much of it, and specially not as much as social media shoves down your throat, at the detriment of almost everything else.