Drug & supplement interaction

Cashew + Insulin (rDNA)

Insulin (rDNA) brand names: Humalog, Humalog Mix 75/25, Humulin R, Humulin N, Humulin L, and others.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Cashew has a moderate interaction with Insulin (rDNA). Eating a diet that consists of high amounts of cashew might increase fasting blood glucose levels.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Cashew and Insulin (rDNA)

Here is the interaction we found between these two, with the evidence behind it.

Moderate

ANTIDIABETES DRUGS

Why this applies to Insulin (rDNA)

Insulin (rDNA) falls under ANTIDIABETES DRUGS — the group Cashew interacts with.

Eating a diet that consists of high amounts of cashew might increase fasting blood glucose levels. However, other evidence shows that eating 30 grams of cashew daily does not significantly affect glycemic measures. Until more is known, use with caution in combination with antidiabetes drugs. Theoretically, concomitant use might reduce the effects of antidiabetes drugs. Dosing adjustments for insulin or oral hypoglycemic agents may be necessary.
Oral hypoglycemic drugs include glimepiride (Amaryl), glipizide (Glucotrol), glyburide (Diabeta, Micronase), tolazamide (Tolinase), tolbutamide (Orinase), and others.
Severity Moderate Likelihood Possible Evidence D

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.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the gist with cashews and your insulin. Insulin's whole job is to lower your blood sugar. The concern on file is theoretical, but the thought is that eating very large amounts of cashews might nudge fasting blood sugar a little higher, which could slightly work against your insulin and make it seem less effective.

Honestly, this is pretty weak evidence, and studies using a normal serving (around 30 grams a day) didn't show a real change in blood sugar. So a handful of cashews as a snack is unlikely to throw you off. If you start eating cashews in big, concentrated amounts daily, just keep an eye on your readings and mention it to your pharmacist or doctor before changing any insulin dose.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Schutte, A. E., Van Rooyen, J. M., Huisman, H. W., Mukuddem-Petersen, J., Oosthuizen, W., Hanekom, S. M., and Jerling, J. C. Modulation of baroreflex sensitivity by walnuts versus cashew nuts in subjects with metabolic syndrome. Am.J Hypertens. 2006;19(6 PubMed
  2. Mohan V, Gayathri R, Jaacks LM, et al. Cashew nut consumption increases HDL cholesterol and reduces systolic blood pressure in Asian Indians with Type 2 diabetes: A 12-week randomized controlled trial. J Nutr. 2018;148(1):63-69. PubMed

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction 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.
  • PossibleInteraction 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.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Cashew Also Interacts With Other Medications

Cashew has 85 moderate known drug interactions in our database — the Insulin (rDNA) one above is one of them. If you take anything else, check it against the full list below.

Moderate 85 No known interaction 2,745 (incl. Insulin (rDNA))
Taking anything else?

Check Another of Your Medications Against Cashew

Covers the 2,830 medications we’ve checked against Cashew. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Insulin (rDNA)

This page covers Cashew only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Insulin (rDNA) page lists 242 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Chelation Therapy Products (major), Siberian Cocklebur (major), Acai (moderate), African Wild Potato (moderate) and Agaricus Mushroom (moderate).

By severity: 2 major · 211 moderate · 29 minor.

From our pharmacist’s overview on the Insulin (rDNA) page

“A weed called Siberian cocklebur has caused severe low blood sugar in humans and is the one ingredient to avoid outright while using insulin (rDNA) products like Humalog or Humulin. This list deserves real respect.”

Reviewed by 2 · Jul 18, 2026

Open the Insulin (rDNA) interaction page

One more smart check

Taking Cashew as Part of a Dietary Supplement Product? Check It for Interactions

We hold 10 real supplement products containing Cashew, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Cashew. Your product may carry other ingredients that interact with Insulin (rDNA) too, on top of Cashew — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Cashew and Insulin (rDNA) Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Cashew
Steady interest

#1,196 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Insulin (rDNA)
Top half

#963 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Supplement

About Cashew

What is Cashew?

Cashew
  • Heart health support
  • Source of protein and minerals
  • Blood sugar support
  • Traditional digestive remedy
  • Skin and oral care (traditional)

Cashews are a nutritious tree nut that provides protein, healthy fats, fiber, and minerals like magnesium and copper. Eaten as part of a balanced diet, they may support heart health, but evidence for cashew supplements treating any specific disease is limited. People with tree nut allergies must avoid them entirely.

Read the full Cashew monograph & all interactions
Medication

About Insulin Lispro Injection

What Is Insulin Lispro Injection Used For?

Brand names: Humalog, Humalog Mix 75/25, Humulin R, Humulin N, Humulin L, Humulin 50/50, Humulin 70/30, Humulin U, NovoLog, Velosulin, Novolog Mix 70/30, Actrapid, Humulin S, Insuman Rapid

Insulin lispro injection is used to improve glycemic control (blood sugar management) in people with diabetes mellitus. It is a rapid-acting insulin analog approved for use in both type 1 and type 2 diabetes.

Admelog is specifically indicated to improve glycemic control in patients with diabetes mellitus. Humalog Mix75/25 is indicated to improve glycemic control in adults with diabetes mellitus; it is a fixed-ratio mixture of insulin lispro and insulin lispro protamine, and its fixed proportions do not allow for separate adjustment of basal (background) and prandial (mealtime) doses.

See full Insulin Lispro Injection drug information
Keep checking

Other Drugs & Cashew

Browse every other medication we’ve checked against Cashew — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
85Moderate
0Minor
2,744No known interaction
85 Moderate 2,744 No interaction
Moderate

85 interactions

Showing 60 of 85 moderate interactions — see all 85 on the Cashew page.

No interaction 2,744 drugs checked — show the list

We also checked Cashew against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,744 medications checked with no known interaction — see the full Cashew list.

See the full Cashew interactions page
See every supplement checked against Insulin (rDNA), ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

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

Keep exploring
Cashew monograph › Uses, safety, and every drug interaction in one place Insulin (rDNA) supplement interactions › Every supplement checked against Insulin (rDNA), ranked by severity Insulin Lispro Injection drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Cashew and Insulin (rDNA) Together: Common Questions

Can you take Cashew with Insulin (rDNA)?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Cashew and Insulin (rDNA) interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Insulin (rDNA) and Cashew?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.