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Magnesium Glycinate in Flow Nerves: What the Sources Say
Magnesium glycinate is magnesium bound to glycine, an amino acid. It is the first of six names listed for Flow Nerves, and no milligram amount is printed for it. NIH says magnesium helps nerve impulses travel, and sets 350 mg a day as the upper limit for magnesium from supplements. NIH does not name glycinate or peripheral neuropathy.
- No mgprinted for this name
- 350 mga day, supplement upper limit
- 310-420 mga day, adult RDA
- 2 hoursgap before some antibiotics
Written by the Flow Nerves label deskUpdated
The basics
What is magnesium glycinate?
Magnesium glycinate is a magnesium supplement in which the mineral is joined to glycine, a small amino acid. It is the first name on the Flow Nerves ingredient list from the brief and the seller's page.
Magnesium is a mineral your body needs every day. It takes part in many body processes, including how nerve impulses travel. The NIH fact sheet says a deep shortfall can cause numbness and tingling (NIH ODS, Magnesium). That is a statement about a shortfall. It is not a statement about extra magnesium in someone who has enough.
The seller's page says "A highly absorbable magnesium form". The NIH fact sheet does not mention glycinate by name, so we cannot confirm that wording from it. The seller's ingredient card also says only "Magnesium", while its FAQ says glycinate. We follow the brief and write glycinate.
| Name on the list | Magnesium Glycinate |
|---|---|
| What it is | Magnesium bound to glycine, an amino acid. The sales page's FAQ says glycinate; its ingredient card says only 'Magnesium' |
| Form | Glycinate is a form the NIH fact sheet does not name; amounts and form are not printed |
| Printed amount | Not printed in the material we have. No Supplement Facts image was supplied and the sales page prints no milligram for this name. |
| Amount used in research | RDA 310 to 420 mg a day for adults; the upper limit for magnesium from supplements is 350 mg a day; high supplement doses often cause diarrhea |
| How the label compares | The label prints no amount, so no one can say how it compares with 350 mg |
| Strength of evidence | A needed mineral that helps nerve impulses work; the NIH fact sheet does not mention peripheral neuropathy or glycinate |
| Marketed or traditional use | Sold for 'nerve signaling, muscle relaxation, and nervous system balance' |
| Main caution | Taken at the wrong time it can weaken some antibiotics (tetracyclines, quinolones) and bisphosphonates; it may add to blood-pressure-lowering medicine; people with kidney problems should not take magnesium supplements without a doctor. |
The picture at the top is the vendor's illustration of the ingredient. It is not a photo of what sits inside a capsule.
The evidence
Does magnesium do anything for nerves?
Magnesium helps nerve impulses work, according to NIH, but no source we read says that magnesium glycinate helps peripheral neuropathy. The NIH fact sheet does not use that term at all (NIH ODS, Magnesium).
The seller sells magnesium for "nerve signaling, muscle relaxation, and nervous system balance". Only the first part matches NIH. We found no study of Flow Nerves that tests the rest.
Numbness and tingling in the hands and feet have many causes. Diabetes is the leading one in the U.S., and a low vitamin level is another. Mayo Clinic says to seek medical care right away for tingling, weakness or pain in the hands or feet (Mayo Clinic, Peripheral neuropathy). A doctor can check whether magnesium has anything to do with your symptoms. A capsule cannot.
The numbers
How much magnesium glycinate is in Flow Nerves?
Nobody can say how much magnesium glycinate is in one Flow Nerves capsule, because no amount is printed in the material we have. No Supplement Facts image was supplied, and the seller's page calls the six names a "proprietary blend".
That matters for this mineral more than for most. NIH sets a Tolerable Upper Intake Level of 350 mg a day for magnesium taken from supplements, and says high supplement doses often cause diarrhea (NIH ODS, Magnesium). The adult daily need, called the RDA, is 310 to 420 mg from all sources, food included. The bars below show the 350 mg limit next to the dashed "not printed" bar.
A fair question for the seller is: how many milligrams of elemental magnesium are in one capsule? A U.S. blend panel lists the blend's total weight (21 CFR 101.36, Supplement Facts labels), and we have not seen one. The formula page explains the gap.
Side effects
What are the side effects of magnesium glycinate?
The most common side effect of magnesium from supplements is loose stools or diarrhea. NIH says high doses from supplements or medicines often cause it (NIH ODS, Magnesium).
Other points from the same sources are worth knowing. People with kidney failure should not take magnesium supplements without a doctor, because the kidneys clear the extra. MSK lists kidney problems as a reason not to take it (MSK, Magnesium).
Loose stools, cramps or an upset stomach are the usual complaints. Magnesium also comes in antacids and laxatives, so tell your doctor about every product you take.
Swelling of the face or throat, trouble breathing, fainting or a very slow heartbeat need 911 right away. Report a serious reaction to FDA through MedWatch (FDA, MedWatch).
Medicine check
Which medicines interact with magnesium?
Magnesium glycinate can interact with several common medicines, so ask your pharmacist before you start. Keep taking every prescribed medicine, and never stop one because of a supplement.
NIH says tetracycline and quinolone antibiotics should be taken at least 2 hours before or 4 to 6 hours after a magnesium supplement. Bisphosphonates, used for bone loss, need a 2 hour gap. Water pills and long-term acid reducers can lower magnesium levels (NIH ODS, Magnesium). MSK adds three more: magnesium may raise the absorption of some diabetes medicines and of blood thinners, and may add to the blood-pressure-lowering effect of calcium channel blockers (MSK, Magnesium).
The Medicine Switchboard maps all six names to the medicines they touch.
Who should ask first
Who should ask a doctor first?
Ask a doctor or pharmacist before magnesium glycinate if you take medicine, have kidney trouble, are pregnant or nursing, or are under 18. Flow Nerves is for adults 18 and older.
| If this is you | Why to ask |
|---|---|
| You take an antibiotic | Magnesium can weaken tetracyclines and quinolones unless the doses are spaced. |
| You take diabetes medicine or insulin | MSK says magnesium may raise the absorption of sulfonylurea drugs. |
| You take blood pressure medicine | It may add to a calcium channel blocker. |
| You have kidney disease | Extra magnesium may build up. |
| You have new numbness or tingling | See a doctor first. Causes can be checked. |
Our guide on when to see a doctor lists the warning signs. The full Switchboard page covers all six names.
FAQ
Flow Nerves questions people ask
What is magnesium glycinate?
Magnesium glycinate is magnesium joined to glycine, an amino acid. It is the first of six names listed for Flow Nerves. No amount is printed for it in the material we have, and NIH does not name this form.
How much magnesium glycinate is in Flow Nerves?
No amount is printed in the material we have. No Supplement Facts image was supplied, and the seller calls the six names a proprietary blend. Ask the order desk at +1 (302) 200-3480 for the milligrams of elemental magnesium per capsule.
What is the upper limit for magnesium supplements?
NIH sets 350 mg a day as the Tolerable Upper Intake Level for magnesium from supplements in adults. Food magnesium does not count toward that limit (NIH ODS, Magnesium). The adult RDA, from all sources, is 310 to 420 mg.
Does magnesium glycinate cause diarrhea?
It can. NIH says high doses of magnesium from supplements or medicines often cause diarrhea. Taking it with food may help, and a doctor can advise if loose stools continue (NIH ODS, Magnesium).
Can I take magnesium glycinate with antibiotics?
Only with spacing. NIH says tetracycline and quinolone antibiotics should be taken at least 2 hours before or 4 to 6 hours after a magnesium supplement. Ask your pharmacist about your exact antibiotic (NIH ODS, Magnesium).
Is magnesium glycinate safe with kidney disease?
Ask your doctor first. MSK says people with kidney failure should not take magnesium supplements, because the body may not clear the extra (MSK, Magnesium).
Does magnesium glycinate help neuropathy?
No source we read says so. NIH links magnesium to nerve impulses and to numbness when levels are very low, but it does not mention peripheral neuropathy or glycinate (NIH ODS, Magnesium).
Who wrote this
Written and reviewed by
Pages built from the label, the brand panels and linked NIH, FDA, CDC, FTC 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. stocking partner for Flow Nerves. It is not the manufacturer or a distributor named on the label. We earn money when you buy through our order links.
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Check your medicines first with the Switchboard, especially diabetes medicine, blood thinners and blood pressure medicine, and see a doctor about new numbness or tingling, then pick a pack. On the seller's count one bottle is 30 days; 3 bottles cover 90 days and 6 cover 180.
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