Olive Leaf Ingredients & Drug Interactions
by GNC Herbal Plus Standardized
What is this page for?
First and foremost: checking Olive Leaf 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
Olive Leaf is a dietary supplement by GNC Herbal Plus Standardized with 1 active ingredient. Its ingredients are commonly taken for heart health, high blood pressure, high cholesterol.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Olive Leaf by GNC Herbal Plus Standardized
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
Full disclosure
This product contains one active ingredient: olive leaf extract. The inactive ingredients are cellulose and a vegetable cellulose capsule, which serve as filler and capsule material.
Does it work?
Couldn't assess
The evidence we hold for olive leaf extract is not established. The data shows insufficient reliable evidence to rate it for osteoporosis, dyspepsia (indigestion), exercise-induced respiratory infections, herpes zoster (shingles), influenza, or osteoarthritis.
That means studies so far haven't been robust enough to say whether it works for these uses.
How safe is it?
Well-documented data
Olive as a food and oil is very safe, but concentrated supplements like this one are less studied, so safety data is limited. When used in typical food amounts, olive fruit is well tolerated.
Most people report no problems with olive leaf extract, though a small number of trial participants reported headache and stomach discomfort. One person reported skin changes and acne.
Olive tree pollen can trigger seasonal respiratory allergies if you're sensitive to it. Because the long-term safety of concentrated olive leaf supplements isn't well established, talk with your doctor before starting unless they've already approved it.
Meds to double-check
No known interactions
No interactions are documented in our data for olive leaf extract. Check your exact medications with the tool on this page or with your doctor or pharmacist before starting.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.
If you're curious about olive leaf for general wellness, this product is generally well tolerated at typical doses. The evidence for treating specific conditions is weak, so don't expect proven results for any particular health issue.
Talk with your doctor or pharmacist before you start, especially if you have any health conditions or take medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Oct 26, 2011.
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 Olive Leaf, straight from the product label.
| Brand | GNC Herbal Plus Standardized |
|---|---|
| Barcode (UPC) | 048107064624 |
| Net contents | 100 Vegetarian Capsules |
| Market status | On market |
| Date entered into DSLD | Oct 26, 2011 |
| DSLD ID | 708 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegetarian, Adult (18 - 50 Years) |
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 Olive Leaf by GNC Herbal Plus Standardized, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Olive Leaf Extract | 500 mg | -- |
Other ingredients: Cellulose, Vegetable Cellulose Capsule
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.
Brand IP Statement(s)
Potency verified by GNC procedure #5351. Conforms to USP <2091> for weight. Meets UPS <2040> disintegration.
FDA Disclaimer Statement
* This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
FDA Statement of Identity
HERBAL SUPPLEMENT
Formulation
No Sugar, No Artficial Colors, No Artifical Flavors, Sodium Free, No Wheat, No Gluten, No Soy, No Dairy, Yeast Free.
Precautions
KEEP OUT OF REACH OF CHILDREN.
WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition. Discontinue use two weeks prior to surgery.
Storage
Store in a cool, dry place.
General
CODE 196131 EKG
General Statements
Standardized Extract 500 mg
Supports General Well-Being*
Suggested/Recommended/Usage/Directions
Directions: As a dietary supplement, take one capsule daily.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Olive Leaf by GNC Herbal Plus Standardized 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 Olive Leaf by GNC Herbal Plus Standardized
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Amounts shown are per serving.
Olive Leaf Extract
No knowninteractions
Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyr...
Olive Leaf Extract monograph & interactionsOther (inactive) ingredients: Cellulose, Vegetable Cellulose Capsule. These complete the product’s ingredient list but are not active constituents.
Olive Leaf by GNC Herbal Plus Standardized Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Olive Leaf. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Olive Leaf, from the product label.
GNC Herbal Plus Standardized
See all GNC Herbal Plus Standardized products- Phone Number
- 1-888-462-2548
Olive Leaf by GNC Herbal Plus Standardized: Common Questions
Does Olive Leaf by GNC Herbal Plus Standardized interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is olive leaf extract?
Will it help with my immune system or a cold?
What side effects should I expect?
Is it safe to take while pregnant or breastfeeding?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Olive Leaf is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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 Olive Leaf’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Olive Leaf'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 2 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.
Olive 2 references
- Liccardi G, D'Amato M, D'Amato G. Oleaceae pollinosis: a review. Int Arch Allergy Immunol 1996;111:210-7. PubMed
- Somerville V, Moore R, Braakhuis A. The effect of olive leaf extract on upper respiratory illness in high school athletes: A randomised control trial. Nutrients. 2019;11(2). pii: E358. PubMed
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