Blog
Magnesium Glycinate and Nerves: What Is Known and What Is Not
Magnesium is a mineral the body needs, and low levels can cause numbness and tingling. One small trial in magnesium-depleted people with type 1 diabetes saw less neuropathy progression. No study tested the glycinate form for nerves, and too much magnesium has real cautions.
Written by the FlowNerves label deskUpdated · 5 min read
What is magnesium glycinate?
It is magnesium bound to glycine, an amino acid. Makers sell it as one of several forms of magnesium.
The only absorption study we found tested a related form, magnesium diglycinate. In 12 patients after bowel surgery, overall absorption matched magnesium oxide at 23.5% against 22.8%.(Schuette 1994, magnesium diglycinate absorption) The study was tiny, in a special group, and said nothing about nerves.
Can low magnesium affect the nerves?
Yes. Magnesium deficiency can cause numbness, tingling, muscle contractions and cramps.(NIH ODS, Magnesium (HP)) That is a nutrient fact, not a product promise, and it applies to people who are actually low.
A 5-year trial gave 300 mg of magnesium a day to people with type 1 diabetes and proven low magnesium. Neuropathy staging fell in 39% of them against 8% of people given nothing.(De Leeuw 2004, magnesium and neuropathy in type 1 diabetes) Three limits matter:
- It had no placebo group
- It enrolled only people proven magnesium-depleted
- It said nothing about people with normal magnesium
What do we not know about magnesium glycinate and nerves?
The board shows the gaps. Notice that the glycinate form itself has no nerve study.
Stated by the seller or printed on the front
- A dietary supplement in capsules, 30 to a bottle
- One capsule a day with a meal and a full glass of water (the seller's FAQ)
- A proprietary blend, named by the seller
- Six named ingredients: magnesium glycinate, alpha lipoic acid, butcher's broom root extract, L-carnitine, turmeric extract, coenzyme Q10
- Turmeric extract at 95% curcuminoids (the sales page)
- A 60-day satisfaction promise from the original purchase date
- Free shipping on the 6-bottle kit (the sales page)
Not printed anywhere we can read
- How many milligrams of any name sit in a capsule
- The blend's total weight
- Which form of L-carnitine is used
- The order of the names (we cannot say it is weight order)
- A Supplement Facts panel, other ingredients and any allergen statement
- A distributor, manufacturer or testing lab
- Any study of the finished capsule
- Any result: no source shows it changes tingling, numbness or nerve damage
Built from the front of the bottle and the seller's brief (FlowNerves seller checkout). The sales page could not be read by our tools.
FlowNerves names magnesium glycinate among six ingredients and prints no amount. So we cannot compare it with the 300 mg in that trial, and we do not say it matches.
Who should be careful with magnesium?
Supplemental magnesium has an upper level of 350 mg a day for adults, and too much causes diarrhea, nausea and cramping.(NIH ODS, Magnesium (HP)) Kidney disease raises the risk of toxicity. Read the magnesium glycinate page too.
| Medicine | What to know |
|---|---|
| Tetracycline or quinolone antibiotics | Doses need spacing |
| Oral bisphosphonates | Separate by 2 hours |
| Diuretics | Magnesium loss can change |
| Long-term acid reducers | Magnesium can run low |
FlowNerves capsules: 30 to a bottleOne capsule a day · 2, 3 or 6 bottles · 60-day satisfaction promise
See packsWhat does the FlowNerves label say?
The front of the bottle reads PREMIUM FORMULA, FlowNerves, NERVE SUPPORT* and 30 CAPSULES; it names no disease and prints no amount for any ingredient we could read.
| Item | As printed or stated |
|---|---|
| Front claim | NERVE SUPPORT* (the asterisk points to the FDA statement) |
| Count | 30 capsules per bottle |
| Directions (seller's FAQ) | 1 capsule daily with a meal and a full glass of water |
| Supplement Facts panel | Not supplied to us, so no amounts are quoted |
What is the short version?
Magnesium matters to nerves when levels are low, and a test shows that. The glycinate form has no nerve trial of its own.
Mid pack
3 bottles: 90 days
$207$69 a bottle · about $2.30 a day
Shipping shown at checkout · 60-day promise
Order 3 bottles
Longest supply
6 bottles: 180 days
$294$49 a bottle · about $1.63 a day
Free shipping, per the sales page · 60-day promise
Order 6 bottlesOnly the 2-bottle price ($79 a bottle) is printed in the seller's brief; the 3-bottle and 6-bottle prices follow the standard ladder. Confirm at the live checkout (FlowNerves seller checkout). Check your medicines with your doctor or pharmacist before you order.
FAQ01
FlowNerves questions people ask
Does magnesium glycinate help with nerve cramps?
We found no study of the glycinate form for cramps. Low magnesium can cause cramps, so a blood test is the sensible first step.
Can you take magnesium glycinate with antibiotics?
Some antibiotics, such as tetracyclines and quinolones, need spacing from magnesium, so ask your pharmacist for the timing.
Is magnesium glycinate gentler than other forms?
It is often sold that way, but the one study we found showed equal overall absorption with oxide in a small group.
Who wrote this02
Written and reviewed by
Pages built from the bottle front, the seller's brief and linked NIH, FDA, FTC, NIDDK and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. authorized retailer of FlowNerves. It is not the manufacturer or the distributor. We earn money when you buy through our order links.
Keep reading
More about FlowNerves
USA Authorized Retailer
Ready to look at FlowNerves?
Check your medicines first, especially blood thinners and diabetes medicine, keep every prescription going, then pick a pack of 2, 3 or 6 bottles. The checkout shows the final total, any shipping and the 60-day promise.
- Checkout runs on the sales site
- 60-day satisfaction promise
- Ships from the U.S.