Magnesium
Magnesium glycinate
4.0 (1039 owner comments)
Side effectsDeeper sleep
“magnesium glycinate before sleep make huge difference for me, i can't go without now”
What owners report →Medical disclaimer: SnoozeVerdict summarizes what people say about sleep supplements on Reddit. It is not medical advice, and nothing here is meant to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration. Talk to your doctor or pharmacist before starting a supplement, especially if you are pregnant, take medicines (including sleep or mood medicines), or have a medical condition. Poor sleep that lasts for months, loud snoring or gasping at night, or falling asleep during the day while driving or working needs a doctor, not a supplement. Full disclaimer.
Magnesium · capsules, tablets or powder
Magnesium (form not stated) for Sleep: What People Report on Reddit
Illustration, not a product photo.
Comments that name magnesium without a form (or a multi-form blend). Counted separately from glycinate/threonate/taurate.
4.2 SnoozeVerdict score
938 owner comments (487 with a clear rating) from r/sleep, r/Supplements, r/insomnia, r/Anxiety, r/Nootropics, r/Stress, r/Adaptogens, r/Ashwagandha, May 2026 to October 2026. Top 5% of the 20 rated supplements.
Owner sentiment3.6
Recommendations5.0
Tolerability4.6
ValueNot rated
Value for money: Not rated. The example products differ too much in dose to compare cost fairly. How we score.
The short version
Magnesium (form not stated) is among the better-rated supplements we track: 4.2/5. Of 487 rated owner comments, 369 were positive, 32 mixed and 86 negative; 46 mention an unwanted effect. People talk most about deeper sleep and taste & form.
Reddit comments are self-reported and unverified. They tell you what people noticed, not whether a supplement works or is safe for you.
Our guide to magnesium for sleep covers the upper limit too. People also compare supplements for deep sleep on Reddit. There is a separate ranking of what people rate highest for jet lag and shift work.
More on Magnesium
- Magnesium side effects reported by users
- Magnesium dosage and timing
- Does magnesium help you fall asleep?
- Does magnesium help you stay asleep?
- Does magnesium improve deep sleep?
- Best Magnesium for Falling Asleep
- Best Magnesium for Staying Asleep Through the Night
- Best Magnesium for Deep Sleep and Sleep Quality
- Best Magnesium for Anxiety and Racing Thoughts at Night
What it is
- Magnesium is an essential mineral involved in hundreds of enzyme reactions; many people do not get the recommended amount from food.[NIH Office of Dietary Supplements]
- A small 2012 double-blind trial in older adults with insomnia compared 500 mg of magnesium a day with placebo for 8 weeks.[PubMed]
- A 2021 meta-analysis of trials in older adults rated the evidence as low quality.[PubMed]
Safety and interactions
- The NIH upper limit for magnesium from supplements is 350 mg a day for adults unless a doctor advises more; higher doses commonly cause diarrhea, and people with kidney disease are at higher risk of magnesium build-up.[NIH Office of Dietary Supplements]
- Magnesium can reduce absorption of some antibiotics and osteoporosis drugs, so doses are usually spaced apart.[NIH Office of Dietary Supplements]
Supplements can interact with medicines. Talk to a doctor or pharmacist first, especially if you are pregnant, take prescription medicine (including sleep, anxiety or antidepressant medicines), or have ongoing sleep problems. See sleep supplement safety and interactions.
Reports by sleep problem
| Context | Rated owner comments | Positive | Negative | Unwanted effects |
|---|---|---|---|---|
| Falling asleep | 41 | 37 | 3 | 2 |
| Deep sleep | 36 | 30 | 3 | 5 |
| Morning grogginess | 30 | 12 | 14 | 19 |
| Staying asleep | 25 | 20 | 5 | 2 |
| Anxiety at night | 23 | 15 | 7 | 3 |
| Vivid dreams | 9 | 3 | 4 | 9 |
| Jet lag & shift work | 4 | 4 | 0 | 0 |
What Reddit owners say
Commonly praised
- Deeper sleep: 42 owner comments
- Calming: 38 owner comments
- Falling asleep faster: 38 owner comments
Common complaints
- Side effects: 46 owner comments
- Morning grogginess: 12 owner comments
- Taste & form: 7 owner comments
4/5 Deeper sleep“Magnesium -- I started taking it for the muscle cramps after long runs and it turned out to help with general sleep quality too, which I wasn't expecting.”
4/5“the problem is when you do that you have no idea what caused what, like my sleep improved a lot but was it the magnesium or the b12 or just coincidence.”
4/5 Deeper sleep“magnesium helped a bit but adding glycine made me actually sleep through the whole night without that 3am wide awake moment”
2/5“Hello, I actually took magnesium glyconate;at bedtime and it had the opposite affect on me.”
2/5“For reasons unknown (still getting tests done) I developed semi-severe iron deficiency anemia and low magnesium and now I couldn't keep my eyes open if I tried...”
+30 more owner comments
4/5 Deeper sleep“and i started taking magnesium before bed, the glycinate kind, it helped with the body aches and sleep quality”
5/5“This plus magnesium helps me sleep like a baby now!”
5/5“A magnesium complex seems to cover all the bases from poop to sleep (though Mag Glycinate is better for the latter).”
5/5“I use it at night with triple magnesium amazing sleep”
4/5“magnesium before bed helps me sleep better”
4/5“Recently I've seen improvement by taking magnesium and taurine before bed.”
3/5 Side effects“Not commenting on your sheets but if you use magnesium before bed it will help regulate your body temperature as it supports the function of over 300 biochemical processes in your body.”
4/5“I promise I have tried magnesium, melatonin, quitting caffeine, exercising, morning bright light, and at times have practiced better sleep hygiene than you could possibly imagine.”
4/5 Deeper sleepFalling asleep faster“I had similar experience with magnesium helping me get sleepy but not staying asleep part.”
4/5“Magnesium at night, creatine in my morning coffee, and I set a 2pm alarm to go stand in the sun for ten minutes.”
4/5 Calming“My magnesium was low too so I started adding it in instead of buying 9 random sleep supplements like a lunatic.”
4/5 CalmingSide effects“I used to have severe health anxiety and deal with stress daily, tried alot of stuff, Taurine in the morning and magnesium before bed helped mostly, I noticed less brain fog and more calm and focus during the day, idk is it directly…”
5/5 Taste & form“Magnesium supplements. I have never been a big believer in supplements, but it's been a game changer for me. I haven't had to take a sleeping pill in almost a month, and I've been getting 6 - 7 hours of sleep per night - absolutely unheard…”
3/5“It's not a miracle but works well for me in addition to magnesium.”
4/5 Fast-actingDeeper sleep“In terms of supplements, I have found magnesium to be the most helpful for me.”
4/5“A normal serum magnesium result is reassuring, but it doesn't necessarily mean magnesium status is optimal.”
4/5 CostFalling asleep faster“yes got severe issues at some point from too much sugar no hydration and no magnesium it was literally impossible to sleep that's why I mentioned all those things but I also work nights so take that into account let's say I am a sleep…”
4/5 Morning grogginessSide effects“I take 10mg of Davigo and 300mg of magnesium every night and sleep like a baby.”
4/5“Magnesium + l theanine helped me a LOT.”
4/5“I found out I was quite deficient in magnesium so it's a week until my body started to adjust.”
4/5 Calming“I take magnesium in the morning to help relax my sore muscles which gives me a good natural start to the day and then again at night to help me sleep.”
4/5“What helped me was targeting the source of my stress and ensuring I had a consistent pre-bedtime schedule (I take magnesium, always try to give myself at least 30 minutes with no screens or outside simulation to unwind before getting in bed).”
4/5“tried everything you listed plus magnesium and weighted blankets and still woke up at 3 on the dot for months.”
4/5 Morning grogginessStomach upset“high dosing magnesium bisciglynate helped me with sleep (but when taking 800-1000mg it sometimes induces light diarrhea the next day) but maybe it also works at daytime, I didn't test that out”
4/5“For evening ones I put them on bathroom counter next to toothbrush so when I brush teeth before bed I take the magnesium and zinc too”
4/5“Never had issues with magnesium though - actually helps me sleep better.”
2/5 Side effects“Interesting because so many people swear by melatonin and I had brain fog and had a hard time waking up, so I stopped taking it and started taking magnesium and I'm so glad I did!”
4/5“i been taking magnesium before bed and it helps me sleep deeper so i am less tired in the day, maybe worth a shot”
5/5“Best thing I've been able to do is order L-Theanine and melatonin online (I use the bioeva store) and take magnesium supplements.”
2/5 Fast-acting“I had to stop taking magnesium at night because it does make me poop as well.”
Brands with their own owner reviews
- Thorne: 3.6 from 11 owner comments
Example products
These are examples of Magnesium (form not stated) products sold on Amazon. They are not ranked by Reddit and the score above is for the ingredient, not a specific product. Check the label for dose and other ingredients.
Example product · not Reddit-scored
Nature Made Magnesium Complex Supplement with Vitamin D & Zinc, 60 Capsules, Magnesium Glycinate
Brand on Reddit: 3.6 from 5 owner comments · Nature Made owner reviews
$14.44 on Amazon (price as of 2026-11-03). Prices change; check Amazon for the current price.
Example product · not Reddit-scored
Nutricost Magnesium Complex Extra Strength 500mg, 240 Capsules, Magnesium Oxide
Brand on Reddit: 4.1 from 5 owner comments · Nutricost owner reviews
$16.95 on Amazon (price as of 2026-11-03). Prices change; check Amazon for the current price.
Research to read
Published studies (we list them so you can read the evidence yourself; inclusion is not an endorsement):
- The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial. J Res Med Sci 2012
- Oral magnesium supplementation for insomnia in older adults: a Systematic Review & Meta-Analysis. BMC Complement Med Ther 2021
FAQ
What do people with sleep problems say about Magnesium (form not stated) on Reddit?
Across 938 Reddit comments from people who say they have used it for sleep, 369 of 487 rated comments were positive and 86 negative, for a SnoozeVerdict score of 4.2/5. These are self-reported experiences, not clinical evidence.
Do people report side effects with Magnesium (form not stated)?
46 of 487 rated owner comments (9%) describe an unwanted effect such as grogginess, headaches, vivid dreams or an upset stomach. Check the safety notes on this page and ask a doctor or pharmacist before starting.
Who talks about Magnesium (form not stated) most?
Most rated owner comments come from people who struggle to fall asleep (41 comments, 37 positive).
Is Magnesium (form not stated) scored on clinical evidence?
No. The score summarizes Reddit owner comments only. Factual statements on this page link to NIH or PubMed sources, and nothing here is medical advice.
Related supplements
Magnesium
Magnesium taurate
3.5 (26 owner comments)
Deeper sleepFalling asleep faster
“I had the same reaction to mag glycinate, but mag acetyl-taurate has been life changing for me when it comes to sleep.”
What owners report →
Magnesium
Magnesium L-threonate (Magtein)
3.4 (104 owner comments)
Side effectsDeeper sleep
“Threonate helped with pre-sleep anxiety, i usually get very anxious when i lay down cause i know if i dont get a good nights sleep i'll feel like shit the next day.”
What owners report →Comparisons: Melatonin vs Magnesium (form not stated) · L-theanine vs Magnesium (form not stated)
Last updated 2026-11-04. Mentions scanned: 3027 in 1876 threads.