Mediterranean Diet + Psyllium (OTC drug)
Psyllium (OTC drug) brand name: Metamucil.
We found no known interaction between Mediterranean Diet and Psyllium (OTC drug) in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.
Mediterranean Diet and Psyllium (OTC drug)
We checked these two against our interaction database. Here is what we found.
No Known Interaction Found
We did not find a documented interaction between Psyllium (OTC drug) and Mediterranean Diet in our sources. This does not guarantee that the combination is completely free of risk — research on Mediterranean Diet alongside specific medications may be limited.
Worth understanding: our licensed dataset holds no drug-interaction record for Mediterranean Diet at all — not against Psyllium (OTC drug), and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
Mediterranean Diet is an eating pattern rather than something you take. Ask your pharmacist or doctor before changing how you eat while on a prescribed medicine: some medicines are dosed around meals, and a change in diet can change how they work. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Mediterranean Diet safety at a glance
Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Mediterranean Diet in Pregnancy & Breastfeeding
When the Mediterranean diet is used appropriately during pregnancy. However, the red wine component of the Mediterranean diet should be avoided in pregnancy.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center
Questions About Mediterranean Diet or Psyllium (OTC drug)
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Mediterranean Diet or Psyllium (OTC drug), not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
- Does Taking Metamucil Before Meals Prevent Hard Stools? ›
- Potassium, Fiber Interaction And Gallbladder Removal Concerns ›
- Can You Use Metamucil For IBS With Diarrhea? ›
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Psyllium (OTC drug)
This page covers Mediterranean Diet only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Psyllium (OTC drug) page lists 17 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).
By severity: 1 major · 7 moderate · 9 minor.
From our pharmacist’s overview on the Psyllium (OTC drug) page
“Activated charcoal tops the psyllium (Metamucil) list and is the one entry rated major. Charcoal binds many medicines in the gut and can cut how much of them reaches the body, so pairing it with anything you take by mouth deserves real caution, and I would read that entry before the rest.”
Reviewed by 2 · Jul 18, 2026
Where Mediterranean Diet and Psyllium (OTC drug) 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.
#1,155 of 1,452 supplements looked up here in the last 7 days
#1,330 of 2,830 medications looked up here in the last 7 days
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.
Where does our data come from?
- Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Mediterranean Diet reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Mediterranean Diet and Psyllium (OTC drug) records this page draws on were last updated July 11, 2026.
- What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
About Mediterranean Diet
What is Mediterranean Diet?
- Heart health
- Weight management
- Type 2 diabetes prevention
- Brain and memory health
- Reducing inflammation
- General longevity
The Mediterranean diet is an eating pattern rich in vegetables, fruits, whole grains, legumes, nuts, fish, and olive oil, with limited red meat and processed foods. It has some of the strongest evidence of any diet for supporting heart health and is widely considered safe for most people. Talk to your doctor or a dietitian before making big changes, especially if you have a medical condition.
Whole-food eating pattern (not a pill or supplement)
An interaction check asks whether these two react with each other — it does not ask whether Mediterranean Diet is a good idea for someone in your situation. Here is what our Mediterranean Diet record says about it on its own.
Mediterranean Diet: dosing
There is no pill or fixed "dose" for the Mediterranean diet—it is an overall pattern. The general approach is to make vegetables, fruits, whole grains, beans, and olive oil the base of most meals, eat fish a couple of times per week, choose nuts and seeds for snacks, and limit red meat, processed foods, and sweets.A registered dietitian can help you tailor the pattern to your calorie needs, health conditions, and food preferences.
From our Mediterranean Diet monograph — the full record covers uses, side effects and every documented interaction.
About Psyllium
What Is Psyllium Used For?
Brand name: Metamucil
Psyllium is used to treat occasional constipation and help restore regularity. It is available under many brand names — including Careone, Best Choice, Premier Value Fiber, fiber laxative, meijer fiber laxative, Publix, Best Choice Fiber Therapy, Daily Fiber, Dr. Fibra, Lidl Orange Smooth Fiber Powder, and meijer fiber therapy — all for this same purpose.
Most products note that psyllium generally produces a bowel movement within 12 to 72 hours of taking a dose.
Other Drugs & Mediterranean Diet
Browse every other medication we’ve checked against Mediterranean Diet — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Mediterranean Diet against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Abemaciclib ›
- Testosterone ›
- Ivermectin ›
- Acetaminophen ›
- Losartan Potassium ›
- Aspirin ›
- Rosuvastatin ›
- Metoprolol ›
- Clopidogrel ›
- Escitalopram ›
- Rivaroxaban ›
- Atorvastatin ›
- Docusate ›
- Ibuprofen ›
- Tirzepatide ›
- Methamphetamine ›
- Warfarin Sodium ›
- Tadalafil ›
- Valacyclovir ›
- Sumatriptan ›
- Hydroxyurea ›
- Prednisone ›
- Semaglutide ›
- Metformin ›
- Amitriptyline ›
- Propranolol ›
- Lisdexamfetamine ›
- Amoxicillin ›
- Isotretinoin ›
- Methotrexate ›
- Lisinopril ›
- Amlodipine Besylate ›
- Amphetamine ›
- Bupropion ›
- Bendamustine ›
- Fluoxetine ›
- Doxycycline ›
- Azithromycin ›
- Pregabalin ›
- Acyclovir ›
- Gabapentin ›
- Lamotrigine ›
- Dextroamphetamine ›
- Levothyroxine, Liothyronine ›
- Naproxen ›
- Acetaminophen, Codeine ›
- Clonazepam ›
- Quetiapine ›
- Omeprazole ›
- Letrozole ›
- Duloxetine ›
- Citalopram ›
- Methylene Blue ›
- Buspirone ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Mediterranean Diet list.
Mediterranean Diet References
The 6 references that drive our Mediterranean Diet monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- Assaf-Balut C, García de la Torre N, Fuentes M, et al. A high adherence to six food targets of the Mediterranean diet in the late first trimester is associated with a reduction in the risk of materno-foetal outcomes: The St. Carlos gestational diabetes me
- Assaf-Balut C, García de la Torre N, Durán A, et al. A Mediterranean diet with additional extra virgin olive oil and pistachios reduces the incidence of gestational diabetes mellitus (GDM): A randomized controlled trial: The St. Carlos GDM prevention stud
- De Giuseppe R, Bocchi M, Maffoni S, et al. Mediterranean Diet and Lifestyle Habits during Pregnancy: Is There an Association with Small for Gestational Age Infants? An Italian Single Centre Experience. Nutrients 2021;13(6):1941. PubMed
- Crovetto F, Crispi F, Casas R, et al. Effects of Mediterranean Diet or Mindfulness-Based Stress Reduction on Prevention of Small-for-Gestational Age Birth Weights in Newborns Born to At-Risk Pregnant Individuals: The IMPACT BCN Randomized Clinical Trial. DOI
- Makarem N, Chau K, Miller EC, et al. Association of a Mediterranean Diet pattern with adverse pregnancy outcomes among US women. JAMA Netw Open 2022;5(12):e2248165. PubMed
- Yang J, Song Y, Gaskins AJ, et al. Mediterranean diet and female reproductive health over lifespan: a systematic review and meta-analysis. Am J Obstet Gynecol 2023;229(6):617-631. PubMed
Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Following Mediterranean Diet While Taking Psyllium (OTC drug): Common Questions
Is it safe to follow Mediterranean Diet while taking Psyllium (OTC drug)?
Does Psyllium (OTC drug) interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.