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Magnesium Glycinate in FlowNerves: A Needed Mineral, Named With No Amount
Magnesium glycinate is the first name the seller lists for FlowNerves, with no amount printed. Magnesium is a mineral the body needs, and low levels can cause tingling and cramps. One long trial helped people with type 1 diabetes who were proven low in it, but that does not describe a capsule with an unprinted amount.
Written by the FlowNerves label deskUpdated
The direct question01
Is magnesium glycinate good for nerves?
For nerves, the honest answer is "it depends on whether you are low." Magnesium is a mineral the body needs, and the NIH says magnesium deficiency can cause numbness, tingling, muscle contractions and cramps.(NIH ODS, Magnesium (HP)) If a blood test shows you are low, correcting that is sensible care.
If you are not low, we found no trial showing that extra magnesium changes nerve symptoms. And no trial tested magnesium glycinate inside a six-name blend.
| Name on the sales list | Magnesium Glycinate |
|---|---|
| What it is | Magnesium bound to the amino acid glycine |
| Amount per capsule | Named by the seller; no milligrams printed |
| Amount used in research | The adult recommended amount is about 310 to 420 mg a day from all sources; the upper limit for magnesium from supplements is 350 mg a day |
| Strength of evidence | A needed mineral with a clear upper limit for supplements; no trial links it to nerve symptoms in a capsule like this |
| Usually sold for | A needed mineral; sold for sleep, muscles and calm |
| Main caution | High supplement doses can cause diarrhea and cramps; people with kidney disease need a doctor first; magnesium can lower the absorption of some antibiotics and bone medicines. |
The ingredient02
What is magnesium glycinate?
It is magnesium bound to glycine, an amino acid, which is why it is called a chelate or "bisglycinate" in many stores. The seller names it first on the FlowNerves list and prints no amount. We cannot say the first name is the largest.
Sellers usually promote it for sleep, muscles and calm. The word "glycinate" is sold as a gentler, better-absorbed form. The one source we found on the glycinate form is a small 1994 trial of 12 patients who had part of the bowel removed. Overall absorption was the same as with magnesium oxide, though in the four people who absorbed oxide worst, the glycinate form was absorbed more and was better tolerated.(Schuette 1994, magnesium diglycinate absorption) It is a tiny study in a special group, and it says nothing about nerves.
One long trial03
What does the research on magnesium and nerves say?
Only one trial links magnesium to neuropathy in the sources we read. De Leeuw and colleagues randomized 110 people with type 1 diabetes and chronic magnesium depletion to 300 mg of magnesium a day or no supplement for five years.(De Leeuw 2004, magnesium and neuropathy in type 1 diabetes)
| Measure | Magnesium group | Control group |
|---|---|---|
| Neuropathy stage improved | 39% | 8% |
| Neuropathy stage worsened | 12% | 61% |
The numbers look strong, and the limits are plain. The trial had no placebo, enrolled only people proven low in magnesium, and involved type 1 diabetes. It tells us nothing about a person with normal magnesium, and nothing about a blend whose amount is not printed.
The ceiling04
Are there limits to how much you should take?
Yes, and magnesium is the one name where a public ceiling exists. The NIH sets the tolerable upper level for magnesium from supplements at 350 mg a day for adults, with recommended intakes from all sources of about 310 to 320 mg for women and 400 to 420 mg for men.(NIH ODS, Magnesium (HP))
We do not use those numbers to work out what is in FlowNerves. The label shows no amount, so any arithmetic would be a guess. We quote the ceiling for one reason: it shows a mineral can be taken to excess. Too much from supplements causes diarrhea, nausea and cramping, and very high doses are toxic, with the risk rising in people with poor kidney function.(NIH ODS, Magnesium (HP))
If you have kidney disease or reduced kidney function, ask your clinician before taking any magnesium supplement, including a blend.
Timing and interactions05
Which medicines does magnesium touch?
Magnesium can change how some medicines are absorbed, so timing matters. The NIH page lists these groups.
- Bisphosphonates for bone health. Oral forms should be separated from magnesium by about 2 hours.
- Tetracycline and quinolone antibiotics. The antibiotic should be taken 2 hours before, or 4 to 6 hours after, magnesium.
- Diuretics. Loop and thiazide diuretics increase magnesium loss, and potassium-sparing diuretics are also listed.
- Long-term acid-reducing medicine (PPIs). These can lower magnesium levels over time.
Do not stop a prescribed medicine because of a supplement. Because FlowNerves is taken with a meal once a day per the seller's FAQ, ask your pharmacist how to space it from any of these medicines.(NIH ODS, Magnesium (HP))
FlowNerves capsules: 30 to a bottleOne capsule a day · 2, 3 or 6 bottles · 60-day satisfaction promise
See packsTest before guessing06
Could low magnesium be the reason for your symptoms?
It might, which is the best reason to test. Tingling and cramps have several testable causes, and low magnesium is one. Diabetes, low vitamin B12, thyroid problems and medicines are others.(NINDS, Peripheral Neuropathy)
A clinician can order blood tests and tell you whether magnesium, B12 or blood sugar is the reason. If magnesium is low, the fix may be food, a prescribed product or a change in medicine, such as a diuretic or acid reducer that drains it. A capsule with six names and no amounts is a poor tool for a problem that a number can name.
Label reading07
What does the FlowNerves label tell us?
The seller lists magnesium glycinate among six names in a proprietary blend. The bottle front shows "PREMIUM FORMULA", "NERVE SUPPORT*" and "30 CAPSULES". We have no Supplement Facts panel, so no elemental magnesium figure, which is the number that matters.
Magnesium glycinate is a salt, and the weight of the salt differs from the weight of the magnesium in it. A panel should say which it prints. Look for that detail when your bottle arrives, and ask the seller if it is missing.(FDA, Dietary Supplement Labeling Guide, Ch. IV)
Where to go08
What should you do next?
Check your medicine list with a pharmacist, and ask your clinician about a magnesium test if you have cramps or tingling. Then see how this name sits with the other five on the ingredients overview, and how the capsule is meant to be taken on the directions page.
FAQ09
FlowNerves questions people ask
Does magnesium glycinate help nerve pain?
We found no trial of magnesium glycinate for nerve pain. One long trial of magnesium in people with type 1 diabetes and proven low levels showed gains, but it was not placebo-controlled.
Is glycinate better absorbed than other forms?
One tiny trial found equal overall absorption with oxide, with a gain in people who absorb oxide poorly. It is not enough to call the glycinate form better for everyone.
How much magnesium is in a FlowNerves capsule?
The label shows no amount to us, so we cannot say. The seller prints none for any of the six names.
Can magnesium cause diarrhea?
Yes. Too much from supplements can cause diarrhea, nausea and cramping, according to the NIH.
Should I take magnesium with antibiotics?
Ask a pharmacist. Some antibiotics need to be spaced hours apart from magnesium.
Who should not take magnesium supplements?
People with kidney disease need a clinician's advice first, since toxicity risk rises when the kidneys work poorly.
Who wrote this10
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.
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