I somewhat agree. The issue though, at least for me, is that I can only "eyeball" somewhat reliably when I know what I'm looking at. So, when I eat something "new", meaning that I've never measured, all bets are off.

I'm thinking restaurant / takeout mostly. Because you never know what they put in the food. And the usual suspects of carbs and fat loaded with salt can easily throw you off if you don't pay attention.