Ingredient 5 of 6
Turmeric Extract in Flow Nerves: What 95% Curcuminoids Means
Turmeric extract is the fifth ingredient named for Flow Nerves, and the sales page adds 95% curcuminoids. That is a share of the extract, not an amount per capsule, and no source we read defines or tests such an extract. Sources also warn of rare liver injury and of medicine cautions, so ask a pharmacist first.
Written by the Flow Nerves label deskUpdated
What it is
What is turmeric extract, and what does 95% curcuminoids mean?
Turmeric extract is a concentrate made from the turmeric root. The Flow Nerves sales page names it fifth of six ingredients and describes it as 95% curcuminoids. The figure is the only share the page gives for any ingredient.
Curcuminoids are the yellow compounds in turmeric, and curcumin is the best known of them. So 95% curcuminoids says that most of the extract, by weight, is that group of compounds. It does not say how much extract is in a capsule. A 95% extract at a tiny amount holds little, and a 95% extract at a large amount holds a lot, and the sales page prints neither. That is why we mark the amount as not printed on what we saw, while quoting the percentage as the sales page's own.
No source we read defines or tests a 95% curcuminoid extract. The National Center for Complementary and Integrative Health (NCCIH) says turmeric products vary in what they contain (NCCIH, Turmeric). Our overview of all six is on the ingredients page.
Reading the figure
What does 95% curcuminoids tell you, and what does it leave out?
It tells you about purity of the extract. It does not tell you about dose, absorption, safety or effect.
| Question | Does 95% answer it? | What sources say |
|---|---|---|
| How much extract per capsule? | No | Not printed on what we saw |
| What are curcuminoids? | Partly | A review gives commercial curcumin as about 77% diferuloylmethane, 17% demethoxycurcumin and 6% bisdemethoxycurcumin |
| How much curcumin is in turmeric itself? | No | LiverTox puts curcumin at about 1 to 6% of whole turmeric by dry weight |
| Is it absorbed well? | No | The same review discusses poor absorption; some products add piperine, which is not confirmed in Flow Nerves |
| Is it safe or effective? | No | See the sections below |
The curcuminoid split comes from a 2020 review (Frontiers in Pharmacology 2020 review, Turmeric and curcumin: effects and safety), and the dry-weight figure from a federal liver-injury database (LiverTox, Turmeric). We cite them for what they say about composition, not for any benefit.
Evidence
Does any study connect turmeric extract to tingling or numbness?
NCCIH says there is not enough evidence to conclude that turmeric or curcumin is beneficial for any health purpose (NCCIH, Turmeric). Studies it describes cover fatty liver, osteoarthritis and blood lipids.
We found no human study of turmeric for tingling, numbness or neuropathy in the sources we read. Memorial Sloan Kettering mentions one trial of children on chemotherapy in passing, and we did not read it, so we draw nothing from it. A trial of turmeric at a stated amount, in people with a stated condition, tells you about that amount and those people. It cannot be carried over to a six-ingredient blend with hidden amounts.
The brand says the capsule was “developed to provide straightforward nutritional support for your nerves”. For turmeric, no source we read tests that idea. See claims versus evidence.
Turmeric supplement cautions
What are the turmeric supplement cautions?
The main one is rare liver injury. NCCIH says turmeric by mouth is likely safe in recommended amounts for up to two to three months, and also warns of liver damage reports, including with products made to be absorbed better.
Liver reports
LiverTox describes cases at 500 to 1,000 mg a day, starting one to four months in, including one fatal case. It links risk to a gene variant, HLA-B*35:01, and gives turmeric a likelihood score of A for liver injury.
Warning signs
NCCIH says to stop and call a provider for fatigue, nausea, poor appetite, dark urine or yellow skin or eyes.
High-absorption blends
NCCIH mentions piperine, a black pepper compound. We do not know whether the capsule contains it, and the sales page does not say.
The details come from the liver database (LiverTox, Turmeric). These are case reports, and they cannot give a rate. They also did not involve Flow Nerves.
Yellow skin or eyes, or dark urine, is a reason to stop and call a provider. For severe symptoms, seek urgent medical care.
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Which medicines does turmeric extract interact with?
Memorial Sloan Kettering lists blood thinners first. Other sources add diabetes, blood pressure and acid-reducing medicines, on weaker footing.
| Medicine group | What the source says | How firm |
|---|---|---|
| Warfarin and other blood thinners | Bleeding risk | Memorial Sloan Kettering |
| Aspirin, ibuprofen, acetaminophen | Their effects may be lessened | Memorial Sloan Kettering |
| Chemotherapy, tacrolimus | Listed as cautions | Memorial Sloan Kettering |
| Diabetes and blood pressure medicine | Additive effects possible | One review, from animal-based statements |
| Acid reducers | Listed in the review | One review |
Memorial Sloan Kettering also mentions kidney stones and case reports (Memorial Sloan Kettering, Turmeric). The FDA says mixing medicines and supplements can endanger your health, and that natural does not mean safe (FDA, Mixing Medications and Dietary Supplements Can Endanger Your Health). Fuller guidance for all six ingredients is on the interactions page.
Before you decide
What should you ask before taking a turmeric extract in a blend?
Five questions cover most of it.
Do you take a blood thinner?
If yes, ask your pharmacist or doctor before the first capsule.
Do you have liver or kidney problems?
The cautions above matter most to you. Tell your clinician.
Is surgery planned?
The FDA advises telling your doctor about every supplement before surgery.
Do you already take turmeric or curcumin?
A second source adds to the first, and the capsule's amount is unknown.
Do you know what is causing the symptoms?
If not, get that checked. See peripheral neuropathy basics.
To order, use Order Flow Nerves and confirm the price, shipping and guarantee at checkout. This site earns money from those links. The blend page explains why no amounts appear.
FAQ
Flow Nerves questions people ask
What does 95% curcuminoids mean?
It means 95% of the extract, by weight, is curcuminoids, the yellow compounds in turmeric. The sales page gives the figure. It is a share, not an amount per capsule, and no amount is printed.
How much turmeric extract is in Flow Nerves?
We do not know. The sales page prints no milligram amount for any ingredient. Liver reports in LiverTox involved 500 to 1,000 mg a day, but we cannot say how a capsule compares.
Does turmeric extract help with nerves?
NCCIH says there is not enough evidence to conclude turmeric or curcumin is beneficial for any health purpose. We found no human study of it for tingling or numbness, and no study tested Flow Nerves.
What are the turmeric supplement cautions?
Rare liver injury is the main one, with warning signs such as dark urine and fatigue. Blood thinners and several other medicines are also listed. Ask a pharmacist and keep taking prescribed medicine.
Does Flow Nerves contain black pepper or piperine?
The sales page does not say, and we do not know. NCCIH notes that piperine and other high-absorption products have been linked to liver injury reports, so we mention it as a question to ask.
Is turmeric extract safe to take every day?
NCCIH says oral turmeric is likely safe in recommended amounts for up to two to three months. It does not cover longer use, and no recommended amount is printed for Flow Nerves.
Can I take turmeric extract with blood thinners?
Memorial Sloan Kettering lists bleeding risk with warfarin and other blood thinners. Do not decide alone. Ask your pharmacist or doctor first.
Who wrote this
Written and reviewed by
Pages built from the sales page and linked NIH, CDC, FDA, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site of a U.S. retail partner for Flow Nerves. It is not the manufacturer, and it is not the sales page where orders are placed. We earn money when you buy through our order links.
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