A magnesium glycinate/bisglycinate supplement taken in the evening, usually a couple of hours before bed, to help with falling asleep. It’s favored for its glycine component and is described as mildly sedating, helping speed the transition into sleep and sometimes deepen sleep; some speakers treat it as interchangeable with magnesium threonate for this purpose.
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“And then there are other forms of magnesium, magnesium bislycinate which is seems at least on par with magnesium 3 and8 in terms of promoting transition into and depth of sleep and so on.”
Andrew Huberman · Using Salt to Optimize Mental & Physical Performance | Huberman Lab Essentials · Mar 26, 2026 · 20:05 · YouTube ↗