Muscle Protein Synthesis Ingredients & Drug Interactions
by GNC Mega Men
What is this page for?
First and foremost: checking Muscle Protein Synthesis 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
Muscle Protein Synthesis is a dietary supplement by GNC Mega Men 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 Muscle Protein Synthesis by GNC Mega Men
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 Nov 21, 2016.
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 Muscle Protein Synthesis, straight from the product label.
| Brand | GNC Mega Men |
|---|---|
| Net contents | 30 Pack(s) |
| Market status | Off market |
| Date entered into DSLD | Nov 21, 2016 |
| DSLD ID | 66665 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult Male (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 Muscle Protein Synthesis by GNC Mega Men, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Leucine | 500 mg | -- |
Other ingredients: Cellulose, Gelatin, Magnesium Stearate, Titanium Dioxide
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.
General
Code 209711 GQG
Suggested/Recommended/Usage/Directions
Directions: As a dietary supplement, take the contents of one pack daily with food. For maximum benefits, take as directed every day.
General Statements
Each pack contains:
Muscle Protein Synthesis
Conforms to USP <2091> for weight. Meets USP <2040> disintegration.
Actual size
In a randomized, double-blind, placebo-controlled study of 112 healthy volunteers, subjects taking the GNC vitamin and mineral blends for six weeks experienced significant improvements in serum levels of certain key nutrients compared to a placebo and a basic multivitamin formula based upon multivariate statistical analyses of a group of B vitamins (thiamin, niacin, riboflavin, pantothenic acid, biotin, folic acid, and vitamins B-6 and B-12) and key antioxidants and carotenoids (a group of beta-carotene, alpha-tocopherol, selenium, lutein and lycopene). Statistical improvements in SF-36 Vitality and Mental Health scores were also observed compared to placebo.
Physician endorsed This product is endorsed by the GNC Medical Advisory Board. This team of esteemed physicians utilizes their extensive medical knowledge and experience to aid in the creation of GNC premium products, helping you achieve optimal health through comprehensive nutritional support so you can live your best life!
- Targets 13 core functions for head-to-toe support
Whole body
Achieve your daily nutritional goal with customized ingredients plus multivitamins that have more antioxidant power than ever, contain over 30 clinically studied ingredients - and are smaller and easier to swallow.
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.
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.
Formulation
No Artificial Colors, no Artificial Flavors, Yeast free.
FDA Statement of Identity
Dietary Supplement
Brand IP Statement(s)
Vitapak program with clinically studied multivitamin - Our most comprehensive Vitapak program that provides support for both wellness and performance
Seals/Symbols
Physician endorsed
Formula
Muscle protein L-Leucine for muscle protein synthesis
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Muscle Protein Synthesis by GNC Mega Men 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 Muscle Protein Synthesis by GNC Mega Men
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 White Capsule(s) Dosage formCapsule Amounts shown are per serving.
L-Leucine
Other (inactive) ingredients: Cellulose, Gelatin, Magnesium Stearate, Titanium Dioxide. These complete the product’s ingredient list but are not active constituents.
Muscle Protein Synthesis by GNC Mega Men Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Muscle Protein Synthesis. 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 Muscle Protein Synthesis, from the product label.
GNC Mega Men
See all GNC Mega Men products- Name
- General Nutrition Corporation
- City
- Pittsburgh
- State
- PA
- ZipCode
- 15222
- Phone Number
- 1-888-462-2548
- Web Address
- gnc.com
Muscle Protein Synthesis by GNC Mega Men: Common Questions
Does Muscle Protein Synthesis by GNC Mega Men 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 Muscle Protein Synthesis 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
Muscle Protein Synthesis'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