If you're like most people in the United States, you're probably taking at least some kind of vitamin, mineral or other dietary supplement, maybe to try to promote sleep, boost your immune system or bridge nutritional gaps.

In fact, in the wrong dose or combined with the wrong stuff, some supplements can actually do more damage than repair. The rise of TikTok docs, pseudo sponsorships with influencers and gray market sales has led to an explosion of misinformation around dietary supplements -- or the more concentrated forms of the vitamins and minerals we already get from food -- and their long term efficacy and safety.