GNC
MEGA MEN® Energy & Metabolism
37/100
SUPPIE SCORE
68/100
EFFICACY
Medium
SAFETY
20/100
CLEANLINESS
What Does MEGA MEN® Energy & Metabolism Do?
- Green coffee provides 100 mg caffeine with no disclosed chlorogenic acid dose.
- Magnesium as oxide and zinc/copper as oxides are low-bioavailability inorganic forms.
- Proprietary 'clinically proven blend' lacks full ingredient dosages beyond caffeine and piperine.
How does the 100 mg caffeine from green coffee bean compare to typical doses used in metabolism studies?
Are the high B-vitamin doses in this formula safe for long-term daily use?
What is the evidence for the green coffee bean and cayenne blend for calorie burning?
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What Are the Benefits of MEGA MEN® Energy & Metabolism?
Based on proven scientific research
EnergyStrong
Metabolism SupportModerate
Antioxidant SupportModerate
Micronutrient ReplenishmentVery strong
Good For:
What Are the Side Effects of GNC MEGA MEN® Energy & Metabolism?
Always consult your health practitioner if in doubt.
RiskMedium Risk
Overview
•Contains 100 mg caffeine per serving from green coffee bean; avoid use near bedtime as directed.
•High-dose B vitamins (up to 4167% DV) may cause urine discoloration or mild GI upset in sensitive individuals.
•Magnesium oxide form has lower bioavailability; may cause loose stools at higher intakes.
•Titanium dioxide and polyethylene glycol used in coating; some regulatory scrutiny on long-term nanoparticle exposure.
•Contains bioengineered food ingredients; corn starch may be derived from GMO sources.
•Not recommended before bedtime due to stimulant content; consult physician if pregnant, nursing, or on medications.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Low Risk
Good
Low Risk
Medium Risk
Low Risk
Medium Risk
Medium Risk
Medium Risk
Medium Risk
Low Risk
Low Risk
What Are the Ingredients in GNC MEGA MEN® Energy & Metabolism?
Vitamin A (50% as beta-Carotene & 50% as Retinyl Acetate)
1500 mcg RAE
Vitamin C (as Ascorbic Acid & Calcium Ascorbate)
300 mg
Vitamin D (as Cholecalciferol)
50 mcg
Vitamin E (as d-alpha Tocopheryl Acetate)
20.1 mg
Vitamin K (as Phytonadione)
80 mcg
Thiamin (Vitamin B-1) (as Thiamin Mononitrate)
50 mg
Riboflavin (Vitamin B-2)
50 mg
Niacin (as Niacinamide & Niacin)
50 mg
Vitamin B-6 (as Pyridoxine Hydrochloride)
50 mg
Folate
680 mcg DFE (400 mcg Folic Acid)
Vitamin B-12 (as Cyanocobalamin)
50 mcg
Biotin
300 mcg
Pantothenic Acid (as Calcium Pantothenate)
50 mg
Choline (as Choline Bitartrate)
10 mg
Calcium (as Calcium Carbonate, Dicalcium Phosphate & Calcium Pantothenate)
210 mg
Iodine (as Potassium Iodide)
150 mcg
Magnesium (as Magnesium Oxide)
100 mg
Zinc (as Zinc Oxide)
25 mg
Selenium (as L-Selenomethionine)
200 mcg
Copper (as Cupric Sulfate)
2 mg
Manganese (as Manganese Sulfate)
2 mg
Chromium (as Chromium Chloride)
120 mcg
Molybdenum (as Sodium Molybdate)
75 mcg
Green Coffee Bean Powder (Standardized to 36% Caffeine = 100 mg)
102 mg
Cayenne Pepper (Capsicum annuum) Fruit Extract
25 mg
Black Pepper (Piper nigrum) Fruit Extract (Standardized to 95% Piperine = 2.5 mg)
10 mg
Boron (as Sodium Borate)
2 mg
Lutein (from Marigold (Tagetes erecta) Flower Extract)
2 mg
Zeaxanthin (from Marigold (Tagetes erecta) Flower Extract)
400 mcg
Lycopene
50 mcg
Alpha Lipoic Acid
25 mg
Inositol
10 mg
Silica
10 mg
Vanadium (as Sodium Metavanadate)
10 mcg
Cellulose
Corn Starch
Stearic Acid Vegetable Source
Polyvinyl Alcohol
Magnesium Stearate Vegetable Source
Titanium Dioxide (Mineral Whitener)
Polyethylene Glycol
Talc
Caramel Color
Natural Vanilla Mint Flavor
Steviol Glycosides
Frequently Asked Questions
Common questions about GNC MEGA MEN® Energy & Metabolism