🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

1 Capsule(s) Serving Size
Other Combinations Product Type
33% Evidence Coverage

Supplement Facts — Evidence Check

20 mg (100% DV)
✅ 1.4× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 20mg UL 35mg
Blend (Combination)
243.34 mg
📊 Market median: 600.0mg (321 products) 📚 5 studies — no high-quality reviews
This product: 100mg
📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)
This product: 50mg
📊 Market median: 450.0mg (167 products)
Median 450.0mg This product: 50mg
Lychee fruit extract
25 mg

Other Ingredients

Cellulose Magnesium Stearate Silica Chlorophyll

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Adult Male (18-50 Years) Dairy Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take the contents of one pack daily with food.

⚠️ Warnings & Precautions

Contains 200 mg of caffeine.

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.

Keep out of reach of children.

🧪 Formulation Notes

Contains 200 mg of caffeine.

No artificial colors, no artificial flavors, no dairy, yeast free.

Also provides nutrients to support physical endurance and B vitamins for energy production.

Additional Information

CODE 209317 JRG

Each pack contains: Energy & Metabolism Generator

Actual size

Store in cool, dry place.

In a randomized, double-blind, placebo-controlled study of 112 healthy volunteers, subjects taking the GNC vitamin and mineral blend for six weeks experienced significant improvements in serum levels of certain key nutrients compared to a placebo and leading 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.

~ Antioxidants ~ Energy & metabolism ~ Heart health ~ Sexual health

Clinically studied

Energy

Achieve your daily nutritional goals 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. Antioxidants Packed with antioxidants to help fight free radicals that can be produced during intense exercise.

Energy & Metabolism Features a clinically studied thermogenic proven to boost energy and enhance calorie burning.

Product Details

DSLD Entry Date 2017-10-21
Product Type Other Combinations
Form Capsule
Brand GNC Mega Men
Bundle Energy & Metabolism
DSLD ID 79141
Data Updated 2026-04-11

Research Evidence

241 Research Sources
55 Avg Quality Score
113 Meta Analysis
75 Systematic Review
32 Rct
11 Clinical Trial
3 Other
3 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016
View all evidence for Niacin →

Compare Similar Products

View all Niacin products →