Medication interaction hub

What Supplements Interact with Insulin?

Insulin brand name: NovoRapid Insulin. Every interaction below applies to the brands too.

242 Interactions 2 Major 211 Moderate 29 Minor
Curated & coded by · Clinical Pharmacist · Updated September 22, 2026

Drug–supplement interaction data sourced from Natural Medicines Pro, the licensed clinical database from TRC Healthcare / Therapeutic Research, with additional analysis by the HelloPharmacist Pharmacist Team. Our sources · Editorial policy

What is this page for?

One answer, for one medication: what supplements and herbal products interact with Insulin? Every vitamin, herb, and supplement ingredient we’ve checked against it is on this page, ranked by severity, each linking to the full report for that exact pair.

This page covers supplement interactions only — to check Insulin against your other medications, use the drug–drug interaction checker. Educational information from our licensed clinical databases, not medical advice. Our editorial policy

HelloPharmacist Bottom Line
Our Pharmacist Explains
What is this? The interaction data in the HelloPharmacist supplement database is licensed from Natural Medicines Pro by TRC Healthcare (Therapeutic Research). HelloPharmacist pharmacists often add our own analysis and context on top of that licensed data — such as this Bottom Line summary and the notes on individual interaction pages — and any such commentary is noted as ours.

Someone injecting insulin (NovoRapid) is often the same person browsing supplements sold for blood sugar support, which is exactly why this list warrants genuine caution. Nearly all 242 entries push glucose one way or the other, most often further down, stacking with insulin and raising the risk of hypoglycemia, meaning dangerously low blood sugar. The two major-rated interactions deserve your attention first: Siberian cocklebur has caused severe hypoglycemia in people, and chelation products containing EDTA can drop glucose sharply while also interfering with the insulin itself.

The 211 moderate entries mostly add to insulin's glucose-lowering effect, while a smaller group, niacin included, works the opposite way, raising blood sugar and blunting your doses. Alcohol and fasting complicate control too, and the 29 minor entries carry lower stakes. Whatever you decide to add, check your glucose more often in the first days than you normally would.

— , Clinical Pharmacist · July 18, 2026

Major 2 Moderate 211 Minor 29 No known interaction 1,210

This box checks one ingredient at a time (like turmeric or magnesium). Taking a supplement product with a whole label of ingredients? Search the product instead — we check every ingredient on it ↓

Most Viewed Ingredient Interactions

Insulin: Top Interactions at a Glance

The Insulin supplement & herbal interactions people checked most in the last 24 hours, colored by severity. Tap any ingredient to open the full report for that pair.

Showing the 12 highest-ranked of 242 interacting ingredients — plus 1,210 more checked with no known interaction. See the complete ranked list.

Start here

The Most-Checked Insulin Combinations Today

The Insulin + supplement pages people viewed most in the last 24 hours (resets at midnight). Open any card for the full report.

Minor Likelihood Unlikely Chanca Piedra + Insulini

Theoretically, concomitant use with antidiabetes drugs might affect glucose control and increase the risk of hypoglycemia.

Read the full interaction Moderate Likelihood Possible Wheatgrass + Insulini

Theoretically, taking wheatgrass with antidiabetes drugs might lower blood glucose levels and increase the risk of hypoglycemia.

Read the full interaction Moderate Likelihood Possible Phaseolus Vulgaris + Insulini

Theoretically, Phaseolus vulgaris might increase the risk of hypoglycemia when taken with antidiabetes drugs.

Read the full interaction Moderate Likelihood Possible Brickellia + Insulini

Preliminary research in animal models shows that brickellia and its constituents have hypoglycemic effects.

Read the full interaction Moderate Likelihood Possible Ginger + Insulini

Theoretically, taking ginger with antidiabetes drugs might increase the risk of hypoglycemia.

Read the full interaction Moderate Likelihood Possible Horsetail + Insulini

Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.

Read the full interaction
The complete list

Every Supplement Checked Against Insulin

All 1,452 ingredients in our database, ranked by severity — 242 with a Insulin interaction on file and 1,210 with none found. Filter by severity or search any ingredient; hover the for what each ingredient is.

Looking for an interaction with a specific supplement product? Search products instead ↓

Straight answers

Can You Take It With Insulin?

One-line answers, one card per combination — scroll through today’s 20 and tap any card for the full report. A different set rotates in daily until every combination has had its turn.

Can you take Chanca Piedra with Insulin?

Minor Usually — this is a minor-rated interaction, generally not clinically significant but worth mentioning to your pharmacist. Theoretically, concomitant use with antidiabetes drugs might affect glucose control and increase the risk of hypoglycemia.

Full Chanca Piedra + Insulin answer

Can you take Wheatgrass with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking wheatgrass with antidiabetes drugs might lower blood glucose levels and increase the risk of hypoglycemia.

Full Wheatgrass + Insulin answer

Can you take Phaseolus Vulgaris with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, Phaseolus vulgaris might increase the risk of hypoglycemia when taken with antidiabetes drugs.

Full Phaseolus Vulgaris + Insulin answer

Can you take Brickellia with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Preliminary research in animal models shows that brickellia and its constituents have hypoglycemic effects.

Full Brickellia + Insulin answer

Can you take Ginger with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking ginger with antidiabetes drugs might increase the risk of hypoglycemia.

Full Ginger + Insulin answer

Can you take Purple Nut Sedge with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Evidence from animal research suggests that purple nut sedge can reduce blood glucose levels.

Full Purple Nut Sedge + Insulin answer

Can you take Quassia with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. In animals, quassia extract reduced levels of fasting glucose.

Full Quassia + Insulin answer

Can you take Quercetin with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of quercetin and antidiabetes drugs might increase the risk of hypoglycemia.

Full Quercetin + Insulin answer

Can you take Radish with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, radish might increase the risk of hypoglycemia when taken with antidiabetes drugs.

Full Radish + Insulin answer

Can you take Rauvolfia Vomitoria with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking Rauvolfia vomitoria with antidiabetes drugs might increase the risk of hypoglycemia.

Full Rauvolfia Vomitoria + Insulin answer

Can you take Red Raspberry with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Red raspberry leaf might reduce glucose levels in patients being treated with insulin.

Full Red Raspberry + Insulin answer

Can you take Red Sandalwood with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Animal research shows that an aqueous extra of red sandalwood bark reduces blood glucose levels.

Full Red Sandalwood + Insulin answer

Can you take Rehmannia with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, rehmannia might increase the risk of hypoglycemia when taken with antidiabetes drugs.

Full Rehmannia + Insulin answer

Can you take Reishi Mushroom with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, reishi mushroom might have additive effects with antidiabetes drugs.

Full Reishi Mushroom + Insulin answer

Can you take Rhodiola with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking rhodiola with antidiabetes drugs might increase the risk of hypoglycemia.

Full Rhodiola + Insulin answer

Can you take Rosemary with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking rosemary with antidiabetes drugs might increase the risk of hypoglycemia.

Full Rosemary + Insulin answer

Can you take Rutin with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.

Full Rutin + Insulin answer

Can you take Safflower with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, safflower oil might alter the effects of antidiabetes drugs.

Full Safflower + Insulin answer

Can you take Saffron with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, concomitant use of saffron with antidiabetes drugs might increase the risk of hypoglycemia.

Full Saffron + Insulin answer

Can you take Sage with Insulin?

Moderate Possibly, but carefully — this moderate-rated combination may need monitoring, a dose adjustment, or separated timing. Theoretically, taking sage with antidiabetes drugs might increase the risk of hypoglycemia.

Full Sage + Insulin answer
Read the list like a pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each entry links to a full report with the clinical detail, likelihood, evidence level, and citations for that exact combination.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

How Does Our Interaction Checker Work?

Behind every verdict on this page is a category system. Our source database doesn’t document supplement interactions drug-by-drug — it documents them against groups of medications that behave the same way (for example, “drugs processed by the CYP3A4 liver enzyme” or “blood-thinning medications”).

So the check works in three steps: (1) Insulin is classified into the pharmacology categories it belongs to, (2) every supplement interaction documented against any of those categories is inherited by Insulin, and (3) each ingredient keeps its own severity, likelihood, and evidence grades from the underlying record. That’s why one supplement can carry several records for one drug — it may interact through more than one category.

Insulin sits in 2 interaction categories. Open any one to see what the group means:

Antidiabetes Drugs 239 ingredients

Blood-sugar-lowering medications. Supplements that also lower glucose can push blood sugar too low when combined.

239 of the supplement ingredients on this page reach Insulin through this category.

Insulin 12 ingredients

A pharmacology grouping from our source database: medications in this group share a property that certain supplements are known to interact with, so an interaction documented for the group applies to every drug in it.

12 of the supplement ingredients on this page reach Insulin through this category.

Related: does Insulin deplete any nutrients?

Insulin has 2 reported nutrient associations in the research literature — see the Insulin nutrient depletion report.

Check a real product

Take a Supplement Product? Check the Whole Bottle Against Insulin

Most supplements are combination products — and the interaction may come from an ingredient you didn’t buy it for. Search any product below (or scan its label) and we’ll check every ingredient on it against Insulin.

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Pharmacist Counseling Corner

Insulin & Supplements: Common Questions

What supplements interact with Insulin?
More than you might expect — 242 in total, though they are far from equal: 2 are rated major, 211 moderate, and 29 minor. The ranked list on this page puts the ones that genuinely matter first, and every entry opens a full report on that exact pair. The highest-ranked right now: Siberian Cocklebur, Chelation Therapy Products, American Ginseng.
Which Insulin supplement interactions are the most serious?
The 2 major-rated combinations — led by Siberian Cocklebur and Chelation Therapy Products — deserve real caution: these are the ones generally best avoided, or used only with your prescriber watching. If you take any of them today, don't panic and don't stop anything abruptly — call your pharmacist first. Jump to the ranked list.
Can I take vitamins or supplements while on Insulin?
Usually yes — most people on Insulin can take most supplements. The catch is the exceptions, and they aren't always the exotic ones (St. John's Wort trips up more prescriptions than almost anything sold next to it). Look up each ingredient you actually take in the list above, and treat "no known interaction" as a green-ish light, not a guarantee. Try the label scanner or the interaction checker.
Do brands like NovoRapid Insulin have the same supplement interactions as Insulin?
Yes — NovoRapid Insulin all contain Insulin, so everything on this page applies to them equally. Interactions belong to the active drug, never to the brand on the box; the same is true of generics.
Where do these interaction ratings come from?
Every rating comes from the Natural Medicines database — the same evidence-graded reference pharmacists and hospitals use — and each interaction carries three separate grades: severity (how bad it can be), likelihood (how well it's documented in studies and case reports), and an evidence level. Our pharmacists review the content; we never let an AI decide an interaction. See how to read the ratings and our editorial policy.
Does Insulin deplete any vitamins or nutrients?
It might — Insulin has 2 reported nutrient-depletion associations in the research literature, which is a different question from interactions: instead of a supplement changing the drug, the drug may lower a nutrient over time. See the Insulin nutrient depletion report for the specifics and what to discuss with your pharmacist.
What about Insulin and my other medications?
This page covers Insulin against supplements and herbal ingredients. Checking Insulin against your other prescription or OTC medications is a different tool — our drug interaction checker covers that side. Head to the drug–drug interaction checker.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

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Sourcing

Where This Data Comes From — and Why You Can Trust It

🧪 Licensed clinical database

Every interaction verdict on this page comes from Natural Medicines Pro (TRC Healthcare / Therapeutic Research) — the same evidence-graded reference used by pharmacists and hospitals. We license this data directly; we do not scrape it, and no AI invents an interaction.

🧑‍⚕️ Pharmacist review

This page is curated and coded by , Clinical Pharmacist, with additional analysis by the HelloPharmacist Pharmacist Team. Editorial commentary is ours; the licensed interaction records are shown as sourced.

🔄 Kept current

Our interaction database refreshes on a weekly cycle, and this page re-checks the live database every time it’s rebuilt — what you see reflects the database as of September 22, 2026.

🔍 Full transparency

How every dataset on this site is sourced, licensed, and updated is documented publicly: our data sources · editorial policy · how we use AI.

Educational information, not medical advice. An interaction being on file does not mean it will happen to you — and absence of one is not proof of safety. Never start or stop a medication or supplement without talking to your pharmacist or doctor.