What am I eating that I'm going to regret?

I have a number of food items that I often wonder about. Like, are these foods that I'm eating to improve my health going to be items that in a couple hundred years people are going to think, "What the hell were they thinking, eating that thing? How stupid they were!"

I mean, take Lewis and Clark. They regularly consumed mercury-laden pills to help with constipation. While, sure, they managed to purge their digestive system quickly, they also poisoned themselves in the process. I use magnesium for this process, am I slowly poisoning myself?

Or the protein supplements I consume? I suck at consuming protein, hence the supplement. Am I slowly poisoning myself with mercury in the marine-sourced supplement? Or destroying my kidneys with a protein overdose?

I don't know.

I wonder frequently.