Organic Resistant Starch Complex Unflavored Ingredients & Drug Interactions
by Dr. Mercola
What is this page for?
First and foremost: checking Organic Resistant Starch Complex Unflavored against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Organic Resistant Starch Complex Unflavored is a dietary supplement by Dr. Mercola with 5 active ingredients. Its ingredients are commonly taken for constipation, diarrhea, high cholesterol.Based on those ingredients, 2,100 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Dietary Fiber, ResistAid, Potato Starch. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Organic Resistant Starch Complex Unflavored by Dr. Mercola
Ask about any prescription or over-the-counter medication and we check it for interactions with Organic Resistant Starch Complex Unflavored by Dr. Mercola — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Organic Resistant Starch Complex Unflavored by Dr. Mercola
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Low disclosure
This powder contains 4 active ingredients: green banana flour, potato starch, tiger nut flour, and larch arabinogalactan (branded as ResistAid). These are all starches and fibers meant to support digestive health.
The product has no inactive ingredients listed.
Does it work?
Strong evidence
The evidence for these ingredients is mixed and mostly limited. Green banana flour is possibly effective for diarrhea.
Potato starch and larch arabinogalactan have insufficient evidence for common cold and cholesterol support — the data we hold doesn't confirm they work for those. Potato starch is rated possibly ineffective for colorectal cancer, heart attack, and stroke prevention.
Tiger nut flour has no effectiveness ratings in our data.
How safe is it?
Well-documented data
Green banana flour is generally well tolerated as food, though isolated green banana starch can cause bloating, gas, and cramping — some people report fullness and bloating during exercise. Potato starch is safe when cooked, but green or raw potato contains natural toxins and should be avoided; medicinal potato juice isn't well studied in pregnancy or breastfeeding.
Larch arabinogalactan is generally well tolerated but can cause bloating and flatulence; long-term safety data are limited, and it's not well studied in pregnancy or breastfeeding — talk with your doctor or pharmacist before using if you're pregnant, nursing, or planning to be. Tiger nut flour safety information isn't on file.
Meds to double-check
Moderate interaction found
Before taking this product, double-check with your doctor or pharmacist if you take levodopa (Parkinson's drug — Moderate risk), blood clot-dissolving drugs like alteplase or streptokinase (Moderate risk), succinylcholine or other muscle relaxants for surgery (Moderate risk), or immunosuppressants such as cyclosporine or tacrolimus after a transplant (Moderate risk). No interactions are documented for tiger nut flour, but we hold no data for it either.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product is a fiber blend meant to support resistant starch intake. If you take levodopa for Parkinson's, blood clot-dissolving drugs, succinylcholine during surgery, or immunosuppressants after transplant, you'll need to check with your doctor or pharmacist before starting — the interactions are real and could affect how your medications work.
For most others without those drugs, it's worth discussing with your healthcare provider, especially if you're pregnant, breastfeeding, or prone to bloating.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 4 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 23, 2024.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Organic Resistant Starch Complex Unflavored, straight from the product label.
| Brand | Dr. Mercola |
|---|---|
| Barcode (UPC) | 810487038713 |
| Net contents | 9.52 Ounce(s); 270 Gram(s) |
| Market status | On market |
| Date entered into DSLD | Apr 23, 2024 |
| DSLD ID | 308853 |
| Product type | Other Combinations |
| Supplement form | Powder |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Organic, Gluten Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Organic Resistant Starch Complex Unflavored by Dr. Mercola, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 30 Calorie(s) | -- |
| Total Carbohydrates | 7 Gram(s) | 3% |
| Dietary Fiber | 2 Gram(s) | 7% |
| Resistant Starch Complex | 7.5 Gram(s) | -- |
| Green Banana Flour | 0 NP | -- |
| Potato Starch | 0 NP | -- |
| Tiger Nut Flour | 0 NP | -- |
| ResistAid | 1.5 Gram(s) | -- |
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Seals/Symbols
USDA Organic
Formulation
USDA Organic
GMO Free Gluten Free Soy Free
Certified Organic by: Quality Assurance International
Digestive Support Blood Glucose Support Detoxification Support
Formula
Type 1- Organic Tigernut Flour Type 2- Organic Green Banana Flour Type 3- Organic Pregelatinized Potato Starch Plus Organic Resistaid Arabinogalactan
Dr. Mercola Organic Resistant Starch complex combines types 1, 2 and 3 of resistant starches to help support your body's beneficial bacterial for optimal metabolic health, digestive function and detoxification. A single serving provides 7.5 grams of these key starches plus 1.5 grams of ResistAid Arabinogalactan from organic larch trees.
FDA Statement of Identity
Powdered Dietary Supplement
Brand IP Statement(s)
ResistAid ResistAid is a Lonza trademark registered in the USA.
Dr. Mercola Providing quality products since 2001.
Suggested/Recommended/Usage/Directions
Easily mix this unflavored supplement powder into your favorite smoothie, beverage or yogurt for a gut balancing supplement to help keep your microbiome thriving.
Suggested Use: Adults, as a dietary supplement, mix one (1) scoop (9g) with 8 fl.oz. of water, juice or other desired beverage.
Precautions
Keep out of reach of children.
Do not use if safety seal is torn or damaged.
If you are nursing, pregnant, taking medication or have a medical condition, consult your physician before taking this product.
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Organic Resistant Starch Complex Unflavored by Dr. Mercola label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Organic Resistant Starch Complex Unflavored by Dr. Mercola
These are the 5 active ingredients this product is made of. Select any to open its full monograph.
Serving size9 Gram(s) Dosage formPowder Servings per container30 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
Dietary Fiber
Interacts with2,025 drugs
Black psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. I...
Dietary Fiber monograph & interactionsResistant Starch Complex
- › Green Banana Flour
- › Potato Starch
- › Tiger Nut Flour
ResistAid
Interacts with121 drugs
Larch arabinogalactan is a soluble fiber from larch trees that is mainly used as a prebiotic and for immune support. Early research is interesting but...
ResistAid monograph & interactionsOrganic Resistant Starch Complex Unflavored by Dr. Mercola Drug Interactions
HelloPharmacist Interaction Report
Dr.
Mercola's Organic Resistant Starch Complex interacts with medications through its green banana flour, potato starch, and larch arabinogalactan (ResistAid) content. The most serious interaction is a Moderate concern with levodopa, a Parkinson's drug — green banana may reduce how well it works.
Read the full breakdown — every affected drug type, severity by severity
Potato starch carries Moderate interactions with blood clot-dissolving drugs (thrombolytic agents), which the product may enhance, and with succinylcholine, a muscle relaxant used during surgery that the product may prolong. Larch arabinogalactan poses a Moderate risk with immunosuppressants (drugs that lower immunity after transplant or for autoimmune conditions), which the product may interfere with.
Tiger nut flour was not checked — we hold no interaction data for it. Green banana as a whole food is generally well tolerated, though isolated banana starch from green bananas may cause bloating, gas, and cramping, especially before exercise.
Altogether, these interactions span 133 individual medications.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Organic Resistant Starch Complex Unflavored?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Organic Resistant Starch Complex Unflavored interact with 2,100 drugs. Click any drug to see the details.
4 of the 5 ingredients in Organic Resistant Starch Complex Unflavored interact with drugs. Each result below shows which ingredient is responsible. Dietary Fiber ResistAid Potato Starch Green Banana Flour
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + 6-mercaptopurine interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + 6-mercaptopurine interactionAbrocitinibCibinqo
How Abrocitinib interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Abrocitinib interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Abrocitinib interactionAdalimumabHumira
How Adalimumab interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Adalimumab interactionAdalimumab-adazHyrimoz
How Adalimumab-adaz interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Adalimumab-adaz interactionAdalimumab-adbmCyltezo
How Adalimumab-adbm interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Adalimumab-adbm interactionAdalimumab-afzbAbrilada
How Adalimumab-afzb interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Adalimumab-afzb interactionAdalimumab-attoAmjevita
How Adalimumab-atto interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Adalimumab-atto interactionAdalimumab-bwwdHadlima
How Adalimumab-bwwd interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Adalimumab-bwwd interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Adalimumab-bwwd interactionAdalimumab-fkjpHulio
How Adalimumab-fkjp interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Adalimumab-fkjp interactionAlefaceptAmevive
How Alefacept interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Alefacept interactionAlemtuzumabCampath
How Alemtuzumab interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Alemtuzumab interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Alemtuzumab interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Metformin (glucophage) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Alogliptin, Metformin interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
Potato StarchThrombolytic Drugs Moderate
Interaction Summary
Theoretically, concomitant use of potato may enhance the effects of thrombolytic drugs.
Read the full Potato Starch + Alteplase, Tpa interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Alteplase, Tpa interactionAnifrolumab-fniaSaphnelo
How Anifrolumab-fnia interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Anifrolumab-fnia interactionAntithymocyte GlobulinThymoglobulin
How Antithymocyte Globulin interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Antithymocyte Globulin interactionAtezolizumabTecentriq
How Atezolizumab interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Atezolizumab interactionAzamuneImmunoprin
How Azamune interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Azamune interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Azamune interactionAzathioprineAzamune, Imuran
How Azathioprine interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Azathioprine interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Azathioprine interactionBasiliximabSimulect
How Basiliximab interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Basiliximab interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Basiliximab interactionBeclometasone DipropionateBecotide
How Beclometasone Dipropionate interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Beclometasone Dipropionate interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Beclometasone Dipropionate interactionBeclomethasoneBeclovent, Vanceril
How Beclomethasone interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Beclomethasone interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Beclomethasone interactionBeclomethasone DipropionateQNASL, Qvar
How Beclomethasone Dipropionate interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Beclomethasone Dipropionate interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Beclomethasone Dipropionate interactionBenserazide, LevodopaMadopar, Prolopa
How Benserazide, Levodopa interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
Green Banana FlourLevodopa Moderate
Interaction Summary
Taking banana may reduce the effectiveness of levodopa.
Read the full Green Banana Flour + Benserazide, Levodopa interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Benserazide, Levodopa interactionBetamethasoneCelestone, Diprolene AF, Diprosone
How Betamethasone interacts with Organic Resistant Starch Complex Unflavored — through 2 ingredients. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Betamethasone interactionDietary FiberOral Drugs Minor
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Betamethasone interactionBetamethasone DipropionateSernivo
How Betamethasone Dipropionate interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Betamethasone Dipropionate interactionBetamethasone Dipropionate, CalcipotrieneEnstilar, Wynzora
How Betamethasone Dipropionate, Calcipotriene interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Betamethasone Dipropionate, Calcipotriene interactionBetamethasone ValerateLuxiq
How Betamethasone Valerate interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Betamethasone Valerate interactionBimekizumab-bkzxBimzelx
How Bimekizumab-bkzx interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
ResistaidImmunosuppressants Moderate
Interaction Summary
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects.
Read the full Resistaid + Bimekizumab-bkzx interactionCanagliflozin, MetforminInvokamet
How Canagliflozin, Metformin interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
Dietary FiberOral Drugs, Metformin (glucophage) Moderate
Interaction Summary
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Read the full Dietary Fiber + Canagliflozin, Metformin interactionCanagliflozin, Metformin HydrochlorideInvokamet XR
How Canagliflozin, Metformin Hydrochloride interacts with Organic Resistant Starch Complex Unflavored — through 1 ingredient. Tap an ingredient for the detail:
Dietary FiberMetformin (glucophage), Oral Drugs Moderate
Interaction Summary
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Read the full Dietary Fiber + Canagliflozin, Metformin Hydrochloride interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Organic Resistant Starch Complex Unflavored with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Dietary Fiber
Carbamazepine (Tegretol)
Theoretically, black psyllium might reduce the effects of carbamazepine and increase the risk for convulsions.
Theoretically, black psyllium might reduce carbamazepine absorption. A preliminary study using blond psyllium reported decreased carbamazepine bioavailability due to binding of the drug to psyllium, as well as reduction of available fluid in the gut for dissolution of the drug. This interaction may also occur with black psyllium.
Lithium
Theoretically, taking black psyllium at the same time as lithium might reduce lithium absorption.
The fiber in black psyllium might reduce lithium absorption and plasma levels. Some case reports describe a reduction in plasma lithium levels with concomitant administration of blond psyllium. This was reversed when psyllium was stopped. This interaction may also occur with black psyllium.
Metformin (Glucophage)
Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Animal research shows that concurrent consumption of blond psyllium with metformin slows and increases the absorption of metformin. This interaction may also occur with black psyllium. To avoid changes in absorption, take psyllium 30-60 minutes after metformin.
Olanzapine (Zyprexa)
Theoretically, taking black psyllium at the same time as olanzapine might reduce olanzapine absorption.
The fiber in black psyllium might decrease the absorption of olanzapine. A single case report describes a reduction in the effectiveness of olanzapine when it was concomitantly administered with an unspecified type of psyllium 3 grams orally twice daily. This effect was reversed when psyllium was stopped.
Digoxin (Lanoxin)
Theoretically, taking black psyllium at the same time as digoxin might reduce digoxin absorption and decrease digoxin levels.
Psyllium might bind digoxin in the gut. However, some clinical evidence suggests that psyllium does not impact digoxin absorption.
Ethinyl Estradiol
Theoretically, taking black psyllium at the same time as ethinyl estradiol might alter levels of estradiol.
Concurrent use of blond psyllium with ethinyl estradiol results in a slight increase in the extent of ethinyl estradiol absorption and a slower rate of absorption. This is unlikely to be clinically significant.
Oral Drugs
Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Psyllium seems to have variable effects on drug absorption. To avoid changes in absorption, take psyllium 30-60 minutes after oral medications. Animal research shows that blond psyllium delays and increases the absorption of metformin and ethinyl estradiol. Case reports and animal research suggest that blond psyllium might reduce absorption of lithium, digoxin, olanzapine, and carbamazepine. Finally, some pharmacokinetic studies show that psyllium does not affect the absorption of levothyroxine or warfarin. Although many of these studies evaluated blond psyllium, the fiber content in black psyllium may have similar effects.
ResistAid
Immunosuppressants
Theoretically, larch arabinogalactan might interfere with immunosuppression therapy due to immunostimulant effects. Immunosuppressant drugs include azathioprine (Imuran), basiliximab (Simulect), cyclosporine (Neoral, Sandimmune), daclizumab (Zenapax), muromonab-CD3 (OKT3, Orthoclone OKT3), mycophenolate (CellCept), tacrolimus (FK506, Prograf), sirolimus (Rapamune), prednisone (Deltasone, Orasone), corticosteroids (glucocorticoids), and other drugs.
Potato Starch
Succinylcholine
In humans, consuming potatoes prior to preoperative fasting prolongs the duration of the succinylcholine-induced neuromuscular block and slows recovery from anesthesia. This interaction is possibly related to inhibition of the butyrylcholinesterase enzyme by potato glycoalkaloids.
Thrombolytic Drugs
Theoretically, concomitant use of potato may enhance the effects of thrombolytic drugs. A carboxypeptidase inhibitor isolated from potato tubers may have inhibitory effects on thrombin-activatable thrombolysis inhibitor, and thereby enhance the activity of thrombolytic agents.
Green Banana Flour
Levodopa
Taking banana may reduce the effectiveness of levodopa.
A case report describes apparent wearing off in a patient with Parkinson disease after eating a banana every day. The wearing off subsided after removing dietary bananas.
Brand information
Manufacturer and brand details for Organic Resistant Starch Complex Unflavored, from the product label.
Dr. Mercola
See all Dr. Mercola products- Name
- NHP
- Street Address
- 125 SW 3rd Place
- City
- Cape Coral
- State
- FL
- ZipCode
- 33991
- Phone Number
- (877) 985-2696
Organic Resistant Starch Complex Unflavored by Dr. Mercola: Common Questions
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Organic Resistant Starch Complex Unflavored’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Black Psyllium
Interacts with 2,025 drugsBlack psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. It is best known and most studied for rel...
Read the full Black Psyllium monograph → Herb & supplement monographBanana
Interacts with 5 drugsBananas are a nutritious, widely eaten fruit that provide potassium, fiber, vitamin B6, and quick energy, and they are part of a healthy diet. While some traditional uses (like easing diarrh...
Read the full Banana monograph → Herb & supplement monographPotato
Interacts with 7 drugsPotato is a common food, and as a supplement it is mostly used in folk remedies such as raw potato juice for stomach upset or as a topical poultice. Solid scientific evidence for these uses...
Read the full Potato monograph → Herb & supplement monographLarch Arabinogalactan
Interacts with 121 drugsLarch arabinogalactan is a soluble fiber from larch trees that is mainly used as a prebiotic and for immune support. Early research is interesting but limited, and most claims are not yet fi...
Read the full Larch Arabinogalactan monograph →Sources & How We Checked
Organic Resistant Starch Complex Unflavored's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 52 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Black Psyllium 18 references
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
- Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
- Etman M. Effect of a bulk forming laxative on the bioavailablility of carbamazepine in man. Drug Dev Ind Pharm 1995;21:1901-6.
- Perlman BB. Interaction between lithium salts and ispaghula husk. Lancet 1990;335:416.
- Vaswani SK, Hamilton RG, Valentine MD, Adkinson NF. Psyllium laxative-induced anaphylaxis, asthma, and rhinitis. Allergy 1996;51:266-8. PubMed
- Lantner RR, Espiritu BR, Zumerchik P, Tobin MC. Anaphylaxis following ingestion of a psyllium-containing cereal. JAMA 1990;264:2534-6. DOI
- Kaplan MJ. Anaphylactic reaction to "Heartwise." N Engl J Med 1990;323:1072-3. DOI
- Nordstrom M, Melander A, Robertsson E, Steen B. Influence of wheat bran and of a bulk-forming ispaghula cathartic on the bioavailability of digoxin in geriatric in-patients. Drug Nutr Interact 1987;5:67-9..
- Robinson DS, Benjamin DM, McCormack JJ. Interaction of warfarin and nonsystemic gastrointestinal drugs. Clin Pharmacol Ther 1971;12:491-5. PubMed
- Garcia JJ, Fernandez N, Diez MJ, et al. Influence of two dietary fibers in the oral bioavailability and other pharmacokinetic parameters of ethinyloestradiol. Contraception 2000;62:253-7. PubMed
- Fernandez N, Lopez C, Díez R, et al. Drug interactions with the dietary fiber Plantago ovata husk. Expert Opin Drug Metab Toxicol 2012;8(11):1377-86.
- Semen plantaginis in: WHO Monographs on Selected Medicinal Plants, volume 1. World Health Organization, Geneva, 1999. Available at http://apps.who.int/medicinedocs/en/d/Js2200e/. Accessed November 26, 1026.
- Code of Federal Regulations, Title 21 (21CFR 101.17). Food labeling warning, notice, and safe handling statements. Available at www.ecfr.gov/cgi-bin/text-idx?SID=20f647d3b74161501f46564b915b4048&mc=true&node=se21.2.101_117&rgn=div8. Accessed December 3, 2
- Code of Federal Regulations, Title 21 (21CFR 201.319). Specific labeling requirements - water-soluble gums, hydrophilic gums, and hydrophilic mucilloids. Available at www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=201.319. Accessed Dece
- Diez R, Garcia JJ, Diez MJ, Sierra M, Sahagun AM, Fernandez N. Influence of Plantago ovata husk (dietary fiber) on the bioavailability and other pharmacokinetic parameters of metformin in diabetic rabbits. BMC Complement Altern Med. 2017 Jun 7;17(1):298. PubMed
- Chiu AC, Sherman SI. Effects of pharmacological fiber supplements on levothyroxine absorption. Thyroid. 1998;8(8):667-71. PubMed
- Merrick C, Madden CA, Capurso NA. A Case of Blunted Orally Disintegrating Olanzapine Effect Due to Coadministered Psyllium. J Clin Psychiatry 2021;82(2):20cr13633. PubMed
Banana 11 references
- Ble-Castillo JL, Aparicio-Trápala MA, Francisco-Luria MU, Córdova-Uscanga R, Rodríguez-Hernández A, Méndez JD, Díaz-Zagoya JC. Effects of native banana starch supplementation on body weight and insulin sensitivity in obese type 2 diabetics. Int J Environ PubMed
- Jiménez-Domínguez G, Ble-Castillo JL, Aparicio-Trápala MA, Juárez-Rojop IE, Tovilla-Zárate CA, Ble-Castillo DJ, García-Vázquez C, Olvera-Hernández V, Pérez-Pimienta B, Diaz-Zagoya JC, Mendez JD. Effects of Acute Ingestion of Native Banana Starch on Glycem
- Nieman DC, Gillitt ND, Sha W, et al. Metabolomics-Based Analysis of Banana and Pear Ingestion on Exercise Performance and Recovery. J Proteome Res 2015;14(12):5367-77. doi: 10.1021/acs.jproteome.5b00909. PubMed
- Rabbani GH, Ahmed S, Hossain I, Islam R, Marni F, Akhtar M, Majid N. Green banana reduces clinical severity of childhood shigellosis: a double-blind, randomized, controlled clinical trial. Pediatr Infect Dis J. 2009 May;28(5):420-5. PubMed
- Schoeffl V, Varatorn R, Blinnikov O, Vidamaly V. Intestinal obstruction due to phytobezoars of banana seeds: a case report. Asian J Surg. 2004 Oct;27(4):348-51. PubMed
- Don M, Longo G. Food protein-induced enterocolitis syndrome due to banana: an uncommon entity. Eur Ann Allergy Clin Immunol. 2013 Apr;45(2):61-2.
- Tazoe M, Narita M, Sakuta R, Nagai T, Narita N. Hyperkalemia and hyperdopaminemia induced by an obsessive eating of banana in an anorexia nervosa adolescent. Brain Dev. 2007 Jul;29(6):369-72. PubMed
- Meynadier J, Meynadier JM, Guilhou JJ. [Contact urticaria in atopic patients. Apropos of 2 cases]. Ann Dermatol Venereol. 1982;109(10):871-4.
- Hauswirth DW, Burks AW. Banana anaphylaxis with a negative commercial skin test. J Allergy Clin Immunol. 2005 Mar;115(3):632-3. PubMed
- Hotozuka S, Yasu T, Hikita E, Shirota M. Interaction Between Levodopa and Banana in a Patient With Parkinson's Disease. Am J Ther 2022;29(4):465-467. PubMed
- Arias-Córdova Y, Ble-Castillo JL, García-Vázquez C, et al. Resistant Starch Consumption Effects on Glycemic Control and Glycemic Variability in Patients with Type 2 Diabetes: A Randomized Crossover Study. Nutrients 2021;13(11):4052. PubMed
Potato 15 references
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Klement P, Liao P, Bajzar L. A novel approach to arterial thrombolysis. Blood 1999;94:2735-43. DOI
- Redlitz A, Nicolini FA, Malycky JL, et al. Inducible carboxypeptidase activity. A role in clot lysis in vivo. Circulation 1996;93:1328-30. PubMed
- Larsson SC, Wolk A. Potato consumption and risk of cardiovascular disease: 2 prospective cohort studies. Am J Clin Nutr. 2016;104(5):1245-1252. PubMed
- Vinson JA, Demkosky CA, Navarre DA, Smyda MA. High-antioxidant potatoes: acute in vivo antioxidant source and hypotensive agent in humans after supplementation to hypertensive subjects. J Agric Food Chem. 2012;60(27):6749-54. PubMed
- Bestas A, Goksu H, Erhan OL. The effect of preoperative consumption of potatoes on succinylcholine-induced block and recovery from anesthesia. J Clin Monit Comput. 2013;27(6):609-12. PubMed
- Chrubasik S, Chrubasik C, Torda T, Madisch A. Efficacy and tolerability of potato juice in dyspeptic patients: a pilot study. Phytomedicine. 2006;13(1-2):11-5. PubMed
- Mensinga TT, Sips AJ, Rompelberg CJ, et al. Potato glycoalkaloids and adverse effects in humans: an ascending dose study. Regul Toxicol Pharmacol. 2005;41(1):66-72. PubMed
- Darooghegi Mofrad M, Milajerdi A, Sheikhi A, Azadbakht L. Potato consumption and risk of all cause, cancer and cardiovascular mortality: a systematic review and dose-response meta-analysis of prospective cohort studies. Crit Rev Food Sci Nutr. 2020;60(7): PubMed
- Elefterova-Florova EV, Popova DN, Andreeva RV. An unusual and rare case of food-dependent exercise-induced anaphylaxis caused by ingestion of potatoes. Folia Med (Plovdiv). 2018;60(3):479-82. PubMed
- Schwingshackl L, Schwedhelm C, Hoffmann G, Boeing H. Potatoes and risk of chronic disease: a systematic review and dose-response meta-analysis. Eur J Nutr. 2019;58(6):2243-51. PubMed
- Tsang C, Smail NF, Almoosawi S, McDougall GJM, Al-Dujaili EAS. Antioxidant rich potato improves arterial stiffness in healthy adults. Plant Foods Hum Nutr. 2018;73(3):203-8. PubMed
- Stone MS, Martin BR, Weaver CM. Short-Term RCT of Increased Dietary Potassium from Potato or Potassium Gluconate: Effect on Blood Pressure, Microcirculation, and Potassium and Sodium Retention in Pre-Hypertensive-to-Hypertensive Adults. Nutrients 2021;13( PubMed
- Darooghegi Mofrad M, Mozaffari H, Askari MR, et al. Potato Consumption and Risk of Site-Specific Cancers in Adults: A Systematic Review and Dose-Response Meta-Analysis of Observational Studies. Adv Nutr. 2021 Oct 1;12(5):1705-22. PubMed
- Yiannakou I, Pickering RT, Yuan M, Singer MR, Moore LL. Potato consumption is not associated with cardiometabolic health outcomes in Framingham Offspring Study adults. J Nutr Sci. 2022 Sep 2;11:e73. PubMed
Larch Arabinogalactan 8 references
- D'Adamo P. Larch arabinogalactan. J Naturopath Med 1996;6:33-7.
- Kelly GS. Larch arabinogalactan: Clinical relevance of a novel immune-enhancing polysaccharide. Alt Med Rev 1999;4:96-103.
- Marett R, Slavin JL. No long-term benefits of supplementation with arabinogalactan on serum lipids and glucose. J Am Diet Assoc 2004;104:636-9.
- Robinson RR, Feirtag J, Slavin JL. Effects of dietary arabinogalactan on gastrointestinal and blood parameters in healthy human subjects. J Am Coll Nutr 2001;20:279-85. PubMed
- Udani JK, Singh BB, Barrett ML, Singh VJ. Proprietary arabinogalactan extract increases antibody response to the pneumonia vaccine: a randomized, double-blind, placebo-controlled, pilot study in healthy volunteers. Nutr J 2010;9:32. PubMed
- Grube B, Stier H, Riede L, Gruenwald J. Tolerability of a proprietary larch arabinogalactan extract: a randomized, double-blind, placebo-controlled clinical trial in healthy subjects. Food Nutr Sci 2012;3:1533-8. DOI
- Dion C, Chappuis E, Ripoll C. Does larch arabinogalactan enhance immune function? A review of mechanistic and clinical trials. Nutr Metab (Lond) 2016;13:28. PubMed
- Riede L, Grube B, Gruenwald J. Larch arabinogalactan effects on reducing incidence of upper respiratory tract infections. Curr Med Res Opin 2013;29(3):251-8.
See these in context on the Larch Arabinogalactan monograph →
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC