Which famous people take Slow-Mag magnesium chloride?

Peter Attia

Two or three pills daily, as part of aiming for about 1 g elemental magnesium per day across several forms

Attia said he takes magnesium in multiple forms, including Slow-Mag magnesium chloride tablets, per Insider's report on his 2023 Q&A episode.

Source: Longevity doctor Peter Attia shares the 9 supplements he's taking each morning (article)