Quiet Nerves Blog
Nerve Supplement Safety Checklist: Before Your First Quiet Nerves Capsule
Quick answer
See a doctor first about numbness, tingling, burning or weakness. Then check your medicines: alpha lipoic acid can lower blood sugar, CoQ10 and turmeric may affect warfarin, carnitine can blunt thyroid medicine, and magnesium affects some antibiotics and osteoporosis drugs. Butcher's broom is not advised with diabetes.
A nerve supplement is easy to start, and the checks are easy to skip. This checklist covers the symptoms that need a doctor first, the medicines that can clash with the six Quiet Nerves ingredients, the extra points for people with diabetes, and how to buy without adding risk.
Why
Why should you check a nerve supplement before the first capsule?
Because nobody checks it for you before it goes on sale. The FDA does not have the authority to approve dietary supplements before they are sold, and the maker is responsible for safety (FDA, dietary supplements Q and A).
Supplements are not reviewed for safety and effectiveness before sale, some interact with medicines, and natural does not always mean safe (NCCIH, using supplements wisely). A product sold to treat or cure a disease is legally a drug, so no supplement, this one included, can be sold as a neuropathy treatment.
With Quiet Nerves, the check takes more work. The brand names six ingredients but publishes no amounts, no other ingredients and no label cautions, so you and your doctor work from the names alone.
- Ingredient amounts
- Not published
- Label cautions
- Not published
- Directions (brand)
- 1 capsule daily with a meal and water
- Who it is for
- Adults 18 and over
Symptoms
Which symptoms need a doctor before any supplement?
New or worsening numbness, tingling, burning or weakness in the feet or hands needs a doctor first. Diabetes is the leading cause of peripheral neuropathy in the US, but low vitamin B12, alcohol, infections and chemotherapy can cause it too, and treatment depends on the cause (NINDS, peripheral neuropathy).
Book a visit soon for
- Numbness, tingling or burning that is new, spreading or getting worse
- Weakness in the feet, legs or hands
- Symptoms that started after a new medicine
Call a doctor right away for
- Any foot sore, cut or blister if you have diabetes (NIDDK, diabetic peripheral neuropathy)
- Repeated low blood sugar after starting alpha lipoic acid (Veltroni et al., 2018)
A supplement can wait a week. Finding the cause first is what lets the right care start.
Interactions
Which medicines can clash with the six Quiet Nerves ingredients?
Diabetes medicine, blood thinners such as warfarin, thyroid medicine, some antibiotics and osteoporosis drugs can all interact with ingredients on the list. Show this table to your doctor or pharmacist.
| If you take | Ingredient | What can happen | Source |
|---|---|---|---|
| Insulin or diabetes pills | Alpha lipoic acid | Blood sugar may fall too low | (Linus Pauling Institute, lipoic acid) (NCCIH on diabetes and supplements) |
| Insulin | Coenzyme Q10 | May interact | (NCCIH, coenzyme Q10) |
| Warfarin | Coenzyme Q10 | May interact | (NCCIH, coenzyme Q10) |
| Warfarin or other blood thinners | Turmeric | May raise bleeding risk | (MSK, turmeric) |
| Warfarin-type blood thinners | L-carnitine | Clotting test (INR) rose in one man; a single case report | (Bachmann and Hoffmann, 2004) |
| Thyroid medicine | L-carnitine | Can blunt the action of thyroid hormone | (Benvenga et al., 2001) |
| Some antibiotics | Magnesium | Can block the antibiotic from being absorbed | (NIH ODS, magnesium) |
| Osteoporosis drugs (bisphosphonates) | Magnesium | Can block the drug from being absorbed | (NIH ODS, magnesium) |
| Diuretics | Magnesium | Can change magnesium levels | (NIH ODS, magnesium) |
Kidney disease
Kidney problems raise the risk of magnesium building up to toxic levels (NIH ODS, magnesium). If you have kidney disease, ask your doctor before any product that lists magnesium.
Why your prescriber may say wait
Each row above comes from one ingredient on its own. With no amounts published, your doctor cannot judge how strong any effect might be, and "we cannot tell" is a fair reason to hold off.
The full list of side effects for the formula is on the Quiet Nerves side effects page.
Diabetes
What should people with diabetes check first?
Three points matter most with diabetes: butcher's broom, blood sugar lows with alpha lipoic acid, and vitamin B12 if you take metformin. Butcher's broom is the easiest to overlook, since it has no nerve research behind it.
Butcher's broom
Memorial Sloan Kettering advises people with diabetes not to take butcher's broom, after a reported case of diabetic ketoacidosis, a dangerous build-up of acids in the blood (MSK, butcher's broom). It also lists no nerve benefit for the herb. Since Quiet Nerves includes it, raise this with your doctor before you start.
Alpha lipoic acid and lows
ALA may lower blood sugar in people who use insulin or diabetes pills (Linus Pauling Institute, lipoic acid). Our post on alpha lipoic acid and nerves explains the trials and a rare immune reaction that causes repeated lows.
Metformin and vitamin B12
Metformin might reduce how much vitamin B12 the body absorbs, and low B12 can make the hands and feet numb or tingly (NIH ODS, vitamin B12). If you take metformin and have these symptoms, ask your doctor about a B12 check. None of the six ingredients in this capsule is vitamin B12.
Liver
Is high-absorption curcumin a risk for the liver?
It can be. NCCIH says liver damage has been reported with high-absorption curcumin products (NCCIH, turmeric), and MSK notes reports with both low-dose and high-absorption supplements (MSK, turmeric).
The only nerve trial of curcumin used nano-curcumin, a form made for better absorption. Quiet Nerves does not say which kind it uses, so ask the brand before you rely on it.
NCCIH also says there is not enough evidence that turmeric or curcumin helps any health condition, that stomach upset can occur, and that turmeric supplements may be unsafe in pregnancy (NCCIH, turmeric).
Checked with your doctor? Quiet Nerves comes with a 60-day money-back guarantee.
Prices from $49 a bottle. Free US shipping on every pack.
Side effects
What side effects are listed for each ingredient?
Most side effects listed for these six ingredients involve the stomach. The table shows what the sources report for each ingredient taken on its own; none of them tested the full capsule.
| Ingredient | Side effects reported | Source |
|---|---|---|
| Magnesium | Diarrhea, often with high supplement doses | (NIH ODS, magnesium) |
| Alpha lipoic acid | Headache, heartburn, nausea, vomiting, rash, dizziness | (NCCIH on diabetes and supplements) (Linus Pauling Institute, lipoic acid) |
| Butcher's broom | Diarrhea and skin reactions | (MSK, butcher's broom) |
| Carnitine | Near 3 g a day: nausea, cramps, diarrhea, a fishy body odor | (NIH ODS, carnitine) |
| Turmeric | Stomach upset | (NCCIH, turmeric) |
| Coenzyme Q10 | Mild trouble sleeping or stomach upset | (NCCIH, coenzyme Q10) |
Follow the brand's directions: one capsule a day with a meal and a full glass of water, and never more than one. If a side effect does not settle, stop and ask your doctor.
Buying
How can you buy Quiet Nerves safely?
Buy through the official store and check the bottle when it arrives. The order buttons on this site open the brand's order page, and buying on goquietnerves.com is how this desk's 60-day window applies.
Read the order page before you pay
The info page does not say whether any pack renews on its own. Check the terms on the order page, and note that there is no 1-bottle pack.
Keep the order email
It holds your order ID. The website inbox cannot see orders; the order desk can.
Check the bottle
Look for the lot and best-before on the base when the bottle shows it. Lot QUI-26/GO-5936 and QUI-5936-26-GO are reference labels, not lab proof, and the desk can match a bottle to your order.
Tell every provider
List the capsule with your medicines at each visit (NCCIH, using supplements wisely).
Know your window
You have 60 days from purchase to ask for a refund. The 6-bottle pack lasts 180 days, longer than the window.
Pack sizes and cost per day are on the Quiet Nerves pricing page, and the questions to ask about any product are in our guide to choosing a nerve support supplement.
Checklist
What is on the nerve supplement safety checklist?
Twelve checks, in the order you would do them. Save this page and tick each one before your first capsule of any nerve supplement, this one included.
- A doctor has looked at my numbness, tingling, burning or weakness
- I have listed every medicine and supplement I take
- I asked about insulin or diabetes pills and blood sugar lows
- If I have diabetes, I asked about butcher's broom
- I asked about warfarin or any other blood thinner
- I asked about thyroid medicine and L-carnitine
- I asked about antibiotics, osteoporosis drugs and diuretics
- I told my doctor about any kidney or liver disease
- If I take metformin, I asked about a vitamin B12 check
- I am 18 or older, and if pregnant or breastfeeding, I asked a doctor first
- I will take one capsule a day with a meal, and no more
- I know my 60-day refund window and have kept my order ID
Sources
Sources for this post
- FDA, dietary supplements Q and A
- NCCIH, using supplements wisely
- NINDS, peripheral neuropathy
- NIDDK, diabetic peripheral neuropathy
- Linus Pauling Institute, lipoic acid
- NCCIH, diabetes and dietary supplements
- Veltroni et al., 2018
- NCCIH, coenzyme Q10
- MSK, turmeric
- NCCIH, turmeric
- Bachmann and Hoffmann, 2004
- Benvenga et al., 2001
- NIH ODS, magnesium
- MSK, butcher's broom
- NIH ODS, carnitine
- NIH ODS, vitamin B12