---
type: Guide
title: "Best Magnesium for Sleep: What the Trials Actually Show"
description: "No human trial has compared glycinate with citrate for sleep or anything else."
resource: "https://4well.com/blogs/news/best-magnesium-for-sleep-what-the-trials-show"
tags: [sleep, guide, evidence]
timestamp: 2026-09-17T00:00:00Z
---

# Best Magnesium for Sleep: What the Trials Actually Show

No human trial has compared glycinate with citrate for sleep or anything else. The one bisglycinate sleep RCT cut insomnia scores by 3.9 points against placebo's 2.3 (PMID 40918053), a small effect read honestly; a systematic review covers how well each form is absorbed (PMID 34111673). Includes the label arithmetic and a four-week self-test.

**One-line answer:** Magnesium has a modest, real effect on sleep; the form matters less than the elemental dose and whether it upsets your stomach.

- Published: 2026-09-20
- Read: https://4well.com/blogs/news/best-magnesium-for-sleep-what-the-trials-show
- Every trial in the guide links to its PubMed record; the guide ends with a References list and the same set is exposed as `citation[]` in its BlogPosting markup.
- Trials cited above: [PMID 40918053](https://pubmed.ncbi.nlm.nih.gov/40918053/), [PMID 34111673](https://pubmed.ncbi.nlm.nih.gov/34111673/)

## Related

- Topic: [Sleep](okf-topics-sleep.md)
- Formula discussed on the site for this topic: [Magnesium Advanced](okf-products-magnesium-advanced.md)

## Source

Summary written from the published guide (reviewed 2026-09-17). Guides are written by the formulation team from human trials; every dose claim links to its PubMed record; mixed and negative results are included; there is no clinician review and nothing on the site is medical advice.