Magnesium Threonate: Research

Does it improve sleep?

A 21-day trial assigned 80 adults aged 35–55 with self-reported sleep problems to 1 g daily or placebo. Some wearable sleep scores and daytime measures improved, but overall insomnia severity did not improve significantly more than placebo. 1

Sleep qualityToo little evidence

The findings vary by sleep measure and come from a short trial. 1

Why does the correction matter?

A 2025 correction disclosed retrospective registration and a fuller conflict-of-interest statement: AIDP commissioned and funded the trial, held patents, and paid several authors. These details matter when weighing the findings. 2

What about memory and concentration?

In a 2026 industry-funded trial, 100 adults aged 18–45 dissatisfied with their sleep received 2 g daily or placebo for six weeks. A combined cognitive score and self-reported sleep-related impairment improved. Reasoning and objective sleep measures did not improve more than placebo. 3

MemoryToo little evidence

The cognitive signal needs confirmation beyond this short study population. 3

Effects by health goal

Open an effect to see the studies behind its rating. Bars show the size of the effect; the letter grades the evidence.