Momentous Magnesium Bisglycinate.
200 mg of magnesium as bisglycinate, a gentle form, in two vegan capsules. NSF Certified for Sport and the lowest price on the site.
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Price checked on livemomentous.com on November 5, 2026 (one-time purchase; Momentous showed a subscribe-and-save price of $12.74). Prices and stock change, so check before you buy.
Watch
Momentous Magnesium Bisglycinate in 60 seconds.
Why it made the stack
Key takeaways.
Bisglycinate is bound to glycine and is known for being easy on the stomach.
Momentous designs this one for the evening. Our Drop 08 Magnesium Malate is the daytime version.
Magnesium helps sleep most when you're low on it. If you already eat plenty, expect a small effect.
From the label
Two capsules, every number.
Here's what one serving gives you, straight from the label.
From the Momentous product page and supplement facts, checked November 5, 2026. Always read the label on the product you buy.
Momentous directions: take 2 capsules in the evening, 30 to 60 minutes before bed. Gluten free, non-GMO, vegan.
What the research says
What the evidence shows.
Magnesium and sleep
In a trial of 46 older adults with insomnia, 500 mg of magnesium a day for 8 weeks improved sleep scores versus placebo. Results in younger, well-fed people are less clear.
Abbasi B et al. J Res Med Sci 2012;17:1161–1169. PubMed 23853635
Magnesium basics
The NIH lists the adult need at 310 to 420 mg a day, and surveys find many Americans eat less. The supplement upper limit is 350 mg a day.
NIH Office of Dietary Supplements. Magnesium: Fact Sheet for Health Professionals. ods.od.nih.gov
What Momentous says
The benefit wording on the Magnesium Bisglycinate product page is Momentous's own. The independent part is the third-party certification, which screens for banned substances and checks the label.
Momentous. Magnesium Bisglycinate product page and supplement facts. livemomentous.com, checked November 5, 2026.
Before you buy
What you should know.
- Pick one magnesium. Don't stack this with Magnesium Malate or Nightly Sleep. Together you'd pass the 350 mg supplement limit.
- Loose stools are the usual side effect of too much magnesium.
- Check with your doctor first if you have kidney disease or take antibiotics, osteoporosis drugs or other medicines that interact with magnesium.
Great fit if you…
- Want a simple, cheap sleep add-on
- Eat few greens, nuts or beans
- Don't want melatonin
How to take it
- 2 capsules 30 to 60 minutes before bed
- Every night for a few weeks
- Count any other magnesium you take
FAQ
Quick answers.
Is magnesium bisglycinate good for sleep?
It may help, especially if you're low in magnesium. The trial evidence is small but positive.
Bisglycinate or malate?
Momentous positions bisglycinate for evenings and malate for daytime. Either one covers your magnesium; pick one.
Is it vegan?
Yes, and it's NSF Certified for Sport.
Sources
- Abbasi B et al. The effect of magnesium supplementation on primary insomnia in elderly: a double-blind placebo-controlled clinical trial. J Res Med Sci 2012;17:1161–1169. PubMed 23853635
- NIH Office of Dietary Supplements. Magnesium: Fact Sheet for Health Professionals. ods.od.nih.gov
- Momentous. Magnesium Bisglycinate product page and supplement facts. livemomentous.com, checked November 5, 2026.
- NSF. Certified for Sport program. nsfsport.com.
This page is for general information and is not medical advice. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.