L-Leucine Ingredients & Drug Interactions
by NutraBio
What is this page for?
First and foremost: checking L-Leucine 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
L-Leucine is a dietary supplement by NutraBio with 1 active ingredient.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 L-Leucine by NutraBio
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
None of the active ingredients could be matched to our evidence database, so intended use can't be graded.
Why this rating?
- None of the active ingredients could be matched to a HelloPharmacist monograph, so intended use can't be graded against our evidence data.
Every active ingredient lists its own amount on the label.
Why this rating?
- The label discloses an exact amount for 1 of its 1 active ingredient.
- No proprietary blends here — you can verify the dose of every single component.
None of the active ingredients could be matched to our interaction database.
Why this rating?
- We couldn't match any ingredient to a HelloPharmacist monograph, so there was nothing to check interactions against.
None of the active ingredients could be matched to our safety data.
Why this rating?
- We couldn't match any ingredient to a HelloPharmacist monograph, so there was no safety data to measure.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Medication interactions could not be assessed, and safety information could not be assessed.
Assessment coverage: 0 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 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 L-Leucine, straight from the product label.
| Brand | NutraBio |
|---|---|
| Barcode (UPC) | 649908232702 |
| Net contents | 17.64 Ounce(s); 500 Gram(s); 1.1 Pound(s) |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2024 |
| DSLD ID | 318080 |
| Product type | Amino Acid/protein |
| Supplement form | Powder |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Kosher, Women (not pregnant or lactating), 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 L-Leucine by NutraBio, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Leucine, Fermented | 3000 mg | -- |
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.
Suggested/Recommended/Usage/Directions
Suggested Use: Add 1 scoop (3 grams) to your favorite beverage 1-2 times daily, or as directed by a physician. Mix for 15 to 20 seconds using a shaker cup or mix thoroughly with a spoon. May not mix very easily.
Precautions
Warning: Warning: Keep out of reach of children. Not for use by individuals under the age of 18 years.
Do not use if pregnant or nursing. Consult a physician before use if you have a medical condition or are taking any medication.
Discontinue use two weeks prior to surgery.
Processed in a facility and /or manufacturing line that also produces milk, tree nuts, nuts and soy.
Seals/Symbols
Check. Verify. Trust. View independent lab results checkmysupps.com No proprietary blends Fully transparent Manufactured in our GMP & FDA inspected facility Made in USA with ingredients sourced worldwide
OU (Kosher)
Formulation
Check. Verify. Trust. View independent lab results checkmysupps.com No proprietary blends Fully transparent
No added color, flavor, sweetener, or preservatives. Manufactured without lactose or gluten.
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.
Brand IP Statement(s)
NutraBio Since 1996
General Statements
Wellness
Formula
Pure grade Amino Acid
OU (Kosher)
FDA Statement of Identity
Amino Acid Supplement
Storage
This product is sold by weight not volume. Some settling of contents may have occurred. Serving scoop included. Store in a cool dry place.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Leucine by NutraBio 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 L-Leucine by NutraBio
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size3 Gram(s) Dosage formPowder Servings per container166 Amounts shown are per serving.
L-Leucine, Fermented
L-Leucine by NutraBio Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in L-Leucine. 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 L-Leucine, from the product label.
NutraBio
See all NutraBio products- Name
- NutraBio Labs, Inc.
- Street Address
- 564 Lincoln Blvd.
- City
- Middlesex
- State
- NJ
- ZipCode
- 08846
- Phone Number
- 732-748-8606
L-Leucine by NutraBio: Common Questions
Does L-Leucine by NutraBio interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-Leucine 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.
Sources & How We Checked
L-Leucine'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.
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