🟢 90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 9% of ingredients have research evidence
B Label Compliance Grade

Product Label

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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

1 Brown Capsule(s) Serving Size
Other Combinations Product Type
9% Evidence Coverage

Supplement Facts — Evidence Check

Proprietary Blend
100 mg
Kola Nut
87.5 mg
Oat Straw
75 mg
GABA
50 mg
Nettle
50 mg
Yohimbe bark extract
30 mg
Horny Goat Weed
10 mg
Catuaba
5 mg
Muira
5 mg
Damiana
5 mg
📊 Market median: 320.0mg (426 products) 📚 24 studies (Tier A: 0, B: 5)
This product: 5mg

Other Ingredients

Gelatin Dicalcium Phosphate

Label Claims — Verification

All Other
Structure/Function
All Other (98% of products) Structure/Function (83% of products) Nutrient (17% of products)

Target Groups

Adult Male (18-50 Years)

Product Information

📋 Directions for Use

To ensure a complete nutritional program, take daily with these GNC products: - Ultra Probiotic Complex 25 - Total Lean(TM) CLA - SuperFoods Whole Foods - Total Lean(TM) Breakfast Squares

DIRECTIONS: As a dietary supplement, take contents of one packet daily with food.

⚠️ Warnings & Precautions

Discontinue use two weeks prior to surgery.

WARNING: Consult your physician prior to using this product if you are pregnant, taking medication, or have a medical condition.

🧪 Formulation Notes

- Staminol(TM) - This powerful male performance formula features an herbal blend which includes horny goat weed, maca, nettle and yohimbe to help support sexual health.

Additional Information

Why Should I use Mega Men(R) Energy & Metabolism Vitapak(R) Program? Mega Men(R) Energy & Metabolism Vitapak(R) Program is specially formulated to provide active men the energy they need to conquer the day.

It offers an advanced multivitamin formula with powerful ingredients to help increase mental focus and ramp up metabolism, as well as a strategic blend of natural ingredients to address energy concerns and support prostate health and vitality." - Frank J. Costa, M.D.

"Active men need extra energy to power their bodies during the day.

{signature} Dr. Frank J. Costa M.D.

PHYSICIAN ENDORSED

Boosts energy, fuel muscles & supports exercise recovery - Improves mental alertness & energy

Store in a cool, dry place.

CODE 346911 HNG

GNC QUALITY COMMITMENT For more than 77 years, GNC has been the leader in the development of superior nutritional supplements. Our products are produced using only fresh, high-quality ingredients and are manufactured under the strictest quality controls. GNC GUARANTEE If you are not 100% completely satisfied, return the unused portion of the product with your receipt to a GNC store within 30 days. Our trained sales staff will either refund your purchase price or, if you prefer, assist you in finding a replacement product to help you LIVE WELL.

The components in this program not only support overall wellness, but also offer support for energy and vitality.

Conforms to USP <2091> for weight. Meets USP <2040> disintegration.

ACTUAL SIZE

Product Details

DSLD Entry Date 2013-12-24
Product Type Other Combinations
Form Capsule
Brand GNC Mega Men
Bundle Energy & Metabolism
DSLD ID 27462
Data Updated 2026-04-11

Research Evidence

35 Research Sources
52 Avg Quality Score
15 Meta Analysis
11 Systematic Review
7 Rct
1 Narrative Review
1 Openfda Safety
B Serenoa repens for benign prostatic hyperplasia
Meta Analysis The Cochrane database of systematic reviews 2009
B Serenoa repens for benign prostatic hyperplasia
Meta Analysis The Cochrane database of systematic reviews 2012
B Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement: A systematic review and meta-analysis
Meta Analysis Investigative and clinical urology 2021
B Clinical Efficacy of Serenoa repens Versus Placebo Versus Alpha-blockers for the Treatment of Lower Urinary Tract Symptoms/Benign Prostatic Enlargement: A Systematic Review and Network Meta-analysis of Randomized Placebo-controlled Clinical Trials
Systematic Review European urology focus 2021
B Non-hormonal treatment for male infertility: the potential role of Serenoa repens, selenium and lycopene
Systematic Review European review for medical and pharmacological sciences 2019
B Comparison of Serenoa repens With Tamsulosin in the Treatment of Benign Prostatic Hyperplasia: A Systematic Review and Meta-Analysis
Meta Analysis American journal of men's health 2020
B Serenoa repens monotherapy for benign prostatic hyperplasia (BPH): an updated Cochrane systematic review
Systematic Review BJU international 2012
B Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis
Systematic Review Frontiers in nutrition 2025
C Benign prostate hyperplasia and nutrition
Systematic Review Clinical nutrition ESPEN 2019
C American palm ethnomedicine: a meta-analysis
Meta Analysis Journal of ethnobiology and ethnomedicine 2009
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