🟢 99/100

This product looks safe

  • Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
  • 66% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)

Label Data

2 Brown Caplet(s) Serving Size
Other Combinations Product Type
66% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A
5000 IU (100% DV)
Vitamin C
300 mg (500% DV)
1600 IU (400% DV)
✅ 2.7× RDA — within safe limits 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.04mg UL 0.1mg
30 IU (100% DV)
✅ 1.3× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 20.1mg UL 1000mg
80 mcg (100% DV)
✅ Within RDA (0.7× RDA of 0.12 mg) 📚 273 studies (Tier A: 9, B: 175)
RDA 0.12mg This product: 0.08mg
50 mg (3333% DV)
📊 41.7× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 50mg
50 mg (2941% DV)
📊 38.5× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 50mg
50 mg (250% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 50mg UL 35mg
50 mg (2500% DV)
📊 38.5× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 50mg UL 100mg
400 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.4mg UL 1.0mg
50 mcg (833% DV)
📊 20.8× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.05mg
300 mcg (100% DV)
📊 10.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.3mg
50 mg (500% DV)
📊 10.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 50mg
Calcium
200 mg (20% DV)
150 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.15 mg) 📚 243 studies (Tier A: 4, B: 133)
RDA 0.15mg This product: 0.15mg UL 1.1mg
50 mg (13% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 50mg
25 mg (167% DV)
✅ 2.3× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 25mg UL 40mg
200 mcg (286% DV)
📊 3.6× RDA — above typical dose (UL: 0.4 mg) 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.2mg UL 0.4mg
2 mg (100% DV)
✅ 2.2× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 2mg UL 10mg
2 mg (100% DV)
✅ Within RDA (0.9× RDA of 2.3 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 2mg UL 11mg
120 mcg (100% DV)
📊 3.4× RDA — above typical dose 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.12mg
75 mcg (100% DV)
✅ 1.7× RDA — within safe limits 📚 2 studies — no high-quality reviews
RDA 0.045mg This product: 0.075mg UL 2mg
72 mg (2% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 72mg
Potassium
80 mg (2% DV)
📊 Market median: 500.0mg (180 products) 📚 5 studies (Tier A: 0, B: 1)
This product: 150mg
📊 Market median: 5.0mg (298 products) 📚 701 studies (Tier A: 5, B: 123)
This product: 100mg
Sports Blend
50 mg
Joint Cushion Support Blend
50 mg
📊 Market median: 200.0mg (198 products) 📚 6 studies — no high-quality reviews
This product: 25mg
10 mg
📊 Market median: 125.0mg (294 products) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 10mg UL 3500mg
10 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 10mg
4 mg
📊 Market median: 108.0mg (8 products) 📚 9 studies (Tier A: 0, B: 4)
This product: 4mg
2 mg
📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews
This product: 2mg UL 20mg
📊 Market median: 10.0mg (105 products) 📚 1 studies (Tier A: 0, B: 1)
This product: 0.95mg
950 mcg
📊 Market median: 10.0mg (35 products) 📚 5 studies (Tier A: 0, B: 2)
This product: 0.95mg
📊 Market median: 4.0mg (32 products)
This product: 0.19mg
50 mcg
📊 Market median: 4.0mg (47 products)
This product: 0.05mg
10 mcg
📊 Market median: 0.5mg (6 products) 📚 1 studies (Tier A: 0, B: 1)
This product: 0.01mg UL 1.8mg

Other Ingredients

Cellulose Titanium Dioxide Vegetable Acetoglycerides Caramel color Ethyl Vanillin

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult Male (18-50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

DIRECTIONS: As a dietary supplement, take the contents of one pak 30-60 minutes per-workout. On non-training days, take the contents of one pak first thing in the morning with food.

To take muscular strength gains to new levels, stack with: - Amplified Muscle Igniter 4X – to improve physical and mental intensity - Amplified Mass XXX(TM) - provides a ratio of nutrients proven to accelerate increases in lean mass and exercise performance.

⚠️ Warnings & Precautions

WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, under 18 years of age or have a medical condition.

CONTAINS: Fish and Soybeans.

Discontinue use two weeks prior to surgery.

KEEP OUT OF REACH OF CHILDREN.

🧪 Formulation Notes

Amplified Creatine 189(TM) - This advanced, cutting edge formula has been clinically proven to get in your muscles better than ordinary creatine.

Mega Men(R) Sport contains B-vitamins that are important for energy production and carbohydrate metabolism. It provides amino acids, including BCAA, and a joint cushioning blend for healthy joint cartilage. Also features a broad spectrum of cell-protecting antioxidants and nutrients that aid in boosting immunity.*

Tribulus Terrestris & Anabolic Primer – Features high-quality Tribulus Terrestris and Fenugreek extract clinically studied to support anabolic muscle factors in the body.

- The Power of 5g of Creatine in 2 Tablets Delivers 189% Improved Muscle Creatine Absorption - Triggers Anabolic Factors with High-Quality Tribulus & Fenugreek

CONTAINS: Fish and Soybeans.

No Wheat, No Gluten, No Dairy, Yeast Free.

Additional Information

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.

Each performance boosting pak delivers GNC’s most optimal and precise combination of a premium daily multivitamin and sports nutrients. With over 50 powerful ingredients to support your total exercise strength training program, we’ve taken athletic performance nutrition to a whole new level. This scientifically mastered formula features a daily premium multivitamin and support nutrients combined with strength supporting mechanisms.

When activating the strength-building potential of this exclusive system, you amplify total strength results, increase muscular power and prepare your muscles to utilize the nutrients necessary to build mass with this complete training stack.* Most athletes today are not combining the proper combinations and ratios of critical sports nutrition.

Creatine promotes cellular hydration and helps fuel muscles to improve and enhance athletic performance. This form increases strength with only 25% of the dose of ordinary creatine. In a clinical study, this form of creatine yielded 189% muscle creatine uptake relative to ordinary creatine monohydrate. This allows you to take less and get more into the muscle.

In a randomized, double-blind, placebo-controlled study of 112 healthy volunteers, subjects taking the GNC vitamin and mineral blend in this product for six weeks experienced statistically significant improvements in markers of B vitamins and antioxidant status, as well as improvements in SF-36 Vitality and Mental health scores compared to those taking a placebo. In a clinical study of 17 healthy young adults, muscle biopsy results revealed that GNC Pro Performance(R) AMP Amplified Creatine 189(TM) resulted in 189% greater muscle creatine uptake relative to benchmark amounts of ordinary creatine monohydrate powder. When used in conjunction with regular resistance training. In a randomized, double-blind clinicial study of 57 healthy young adult males, subjects who took, GNC Pro Performance(R) AMP Amplified Creatine 189(TM) containing only 1.25 grams creatine significantly improved leg press 1-RM performance by 54 lbs, while subjects on 5 grams of creatine monohydrate improved by 52 lbs, and the placebo group demonstrated no significant improvement when used in conjunction with regular resistance training.

ADVANCED MUSCLE PERFORMANCE

ADVANCED SPORTS VITAMIN SYSTEM TO ENHANCE STRENGTH TRAINING WITH OVER 50 POWERFUL INGREDIENTS

- Features GNC’s Highest-Potency Sports Multivitamin to Fuel Maximum Strength Training - Scientifically Formulated to Improve Upper and Lower Body Strength and Help Pack on Mass

Daily Strength Size Power

Clinically Researched

CODE 331811 ANG

{Caplet} ACTUAL SIZE

GNC QUALITY COMMITMENT For more than 75 years, GNC has been the leader in the development and manufacture of dietary supplements, is committed to producing the most superior products. We use only the highest quality ingredients manufactured under the strictest quality controls. Every raw material used is tested to ensure its purity and potency. Each product is dated and then shipped immediately to our stores to ensure that you are purchasing the freshest supplements available.

Store in a cool, dry place.

{QRC} SCAN & LEARN MORE

CarnoSyn(R) Carnosine Synthesizer

Lutemax 2020(TM) LUTEIN & ZEAXANTHIN

Product Details

DSLD Entry Date 2015-02-25
Product Type Other Combinations
Form Other (e.g. tea bag)
Bundle Mega Men Powered Strength Vitapak Program
DSLD ID 42326
Data Updated 2026-04-11

Research Evidence

337 Research Sources
54 Avg Quality Score
161 Meta Analysis
68 Systematic Review
51 Rct
48 Clinical Trial
2 Other
2 Regulatory Source
1 Narrative Review
1 Cochrane Review
1 Guideline
1 Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024
View all evidence for Vitamin A →

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