GNC Mega Men® Energy & Metabolism Multivitamin - 90 Caplets (45 Servings) supplement bottle
GNC Mega Men®

Energy & Metabolism Multivitamin - 90 Caplets (45 Servings)

What We Researched
34 active ingredients analyzed · 11 inactive ingredients decoded · 1 retailer compared · Last updated: Mar 2026
55
Product Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (50% as beta-Carotene & 50% Retinyl Acetate) 5000 IU 556%
Vitamin C (as Ascorbic Acid & Calcium Ascorbate) 300 mg 500%
Vitamin E (as Natural d-alpha Tocopheryl Acetate) 30 IU 100%
Vitamin K (as phytonadione) 80 mcg 100%
Thiamin (Vitamin B-1)(as Thiamin Mononitrate) 50 mg 3333%
Riboflavin (Vitamin B-2) 50 mg 2941%
Vitamin B-6 (as Pyridoxine Hydrochloride) 50 mg 2500%
Folic Acid 400 mcg 100%
Vitamin B-12 (as Cyanocobalamin) 50 mcg 833%
Biotin 300 mcg 100%
Iodine (as Potassium Iodide) 150 mcg 100%
Magnesium (as Magnesium Oxide) 100 mg 25%
Zinc (as Zinc Oxide) 25 mg 167%
Selenium (as L-Selenomethionine) 200 mcg 286%
Copper (as Copper Sulfate) 2 mg 100%
Manganese (as Manganese Sulfate) 2 mg 100%
Chromium (as Chromium Chloride) 120 mcg 100%
Molybdenum (as Sodium Molybdate) 75 mcg 100%
Vitamin D (as Cholecalciferol D-3) 1600 IU
Niacin (as Niacinamide & Niacin) 50 mg
Pantothenic Acid (as Calcium d-Pantothenate) 50 mg
Calcium (as Calcium Carbonate & Calcium Ascorbate) 200 mg
alpha-Lipoic Acid 25 mg
Lutemax® 2020 Lutein 2 mg
Lycopene 1 mg
Turmeric Root Extract (CurcuWIN™)(Curcuma longa)(Standardized to Curcuminoids) 500 mcg
Zeaxanthin (as Zeaxanthin Isomers) 400 mcg
Astaxanthin (from Haematococcus pluvialis) 50 mcg
beta-Cryptoxanthin 10 mcg
Choline (as Choline Bitartrate) 10 mg
Inositol 10 mg
Silica (as Silicon Dioxide) 4 mg
Boron (as Sodium Borate) 2 mg
Vanadium (as Sodium Metavanadate) 10 mcg
Bioavailability Good

Absorption Rating

  • Vitamin A (50% as beta-Carotene & 50% Retinyl Acetate) Good
  • Vitamin C (as Ascorbic Acid & Calcium Ascorbate) Good
  • Vitamin E (as Natural d-alpha Tocopheryl Acetate) Good
  • Vitamin K (as phytonadione) Fair
  • Thiamin (Vitamin B-1)(as Thiamin Mononitrate) Fair
  • Riboflavin (Vitamin B-2) Good
  • Vitamin B-6 (as Pyridoxine Hydrochloride) Fair
  • Folic Acid Fair
  • Vitamin B-12 (as Cyanocobalamin) Fair
  • Biotin Good
  • Iodine (as Potassium Iodide) Good
  • Magnesium (as Magnesium Oxide) Poor
  • Zinc (as Zinc Oxide) Poor
  • Selenium (as L-Selenomethionine) Good
  • Copper (as Copper Sulfate) Fair
  • Manganese (as Manganese Sulfate) Good
  • Chromium (as Chromium Chloride) Poor
  • Molybdenum (as Sodium Molybdate) Good
  • Vitamin D (as Cholecalciferol D-3) Good
  • Niacin (as Niacinamide & Niacin) Good
  • Pantothenic Acid (as Calcium d-Pantothenate) Good
  • Calcium (as Calcium Carbonate & Calcium Ascorbate) Fair
  • alpha-Lipoic Acid Fair
  • Lutemax® 2020 Lutein Good
  • Lycopene Good
  • Turmeric Root Extract (CurcuWIN™)(Curcuma longa)(Standardized to Curcuminoids) Poor
  • Zeaxanthin (as Zeaxanthin Isomers) Good
  • Astaxanthin (from Haematococcus pluvialis) Good
  • beta-Cryptoxanthin Good
  • Choline (as Choline Bitartrate) Poor
  • Inositol Good
  • Silica (as Silicon Dioxide) Poor
  • Boron (as Sodium Borate) Fair
  • Vanadium (as Sodium Metavanadate) Poor
Other Ingredients Poor

Fillers & Additives

  • Cellulose
  • Corn Starch
  • Stearic Acid Vegetable Source
  • Polyvinyl Alcohol
  • Magnesium Stearate Vegetable Source
  • Titanium Dioxide (Natural Mineral Whitener) High
  • Polyethylene Glycol Low
  • Talc High
  • Caramel Color
  • Natural Vanilla Mint Flavor
  • Steviol Glycosides
Efficacy Fair

Dosage Analysis

  • Vitamin A (50% as beta-Carotene & 50% Retinyl Acetate) 5000 IU Under-dosed
  • Vitamin C (as Ascorbic Acid & Calcium Ascorbate) 300 mg Effective
  • Vitamin E (as Natural d-alpha Tocopheryl Acetate) 30 IU Effective
  • Vitamin K (as phytonadione) 80 mcg Under-dosed
  • Thiamin (Vitamin B-1)(as Thiamin Mononitrate) 50 mg Effective
  • Riboflavin (Vitamin B-2) 50 mg Effective
  • Vitamin B-6 (as Pyridoxine Hydrochloride) 50 mg Effective
  • Folic Acid 400 mcg Effective
  • Vitamin B-12 (as Cyanocobalamin) 50 mcg Effective
  • Biotin 300 mcg Effective
  • Iodine (as Potassium Iodide) 150 mcg Effective
  • Magnesium (as Magnesium Oxide) 100 mg Under-dosed
  • Zinc (as Zinc Oxide) 25 mg Effective
  • Selenium (as L-Selenomethionine) 200 mcg Effective
  • Copper (as Copper Sulfate) 2 mg Effective
  • Manganese (as Manganese Sulfate) 2 mg Effective
  • Chromium (as Chromium Chloride) 120 mcg Effective
  • Molybdenum (as Sodium Molybdate) 75 mcg Effective
  • Vitamin D (as Cholecalciferol D-3) 1600 IU Effective
  • Niacin (as Niacinamide & Niacin) 50 mg High
  • Pantothenic Acid (as Calcium d-Pantothenate) 50 mg Effective
  • Calcium (as Calcium Carbonate & Calcium Ascorbate) 200 mg Under-dosed
  • alpha-Lipoic Acid 25 mg Under-dosed
  • Lutemax® 2020 Lutein 2 mg Under-dosed
  • Lycopene 1 mg Under-dosed
  • Turmeric Root Extract (CurcuWIN™)(Curcuma longa)(Standardized to Curcuminoids) 500 mcg Under-dosed
  • Zeaxanthin (as Zeaxanthin Isomers) 400 mcg Under-dosed
  • Astaxanthin (from Haematococcus pluvialis) 50 mcg Under-dosed
  • Choline (as Choline Bitartrate) 10 mg Under-dosed
  • Inositol 10 mg Under-dosed
  • Boron (as Sodium Borate) 2 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (50% as beta-Carotene & 50% Retinyl Acetate) 5000 IU 556%
Vitamin C (as Ascorbic Acid & Calcium Ascorbate) 300 mg 500%
Vitamin E (as Natural d-alpha Tocopheryl Acetate) 30 IU 100%
Vitamin K (as phytonadione) 80 mcg 100%
Thiamin (Vitamin B-1)(as Thiamin Mononitrate) 50 mg 3333%
Riboflavin (Vitamin B-2) 50 mg 2941%
Vitamin B-6 (as Pyridoxine Hydrochloride) 50 mg 2500%
Folic Acid 400 mcg 100%
Vitamin B-12 (as Cyanocobalamin) 50 mcg 833%
Biotin 300 mcg 100%
Iodine (as Potassium Iodide) 150 mcg 100%
Magnesium (as Magnesium Oxide) 100 mg 25%
Zinc (as Zinc Oxide) 25 mg 167%
Selenium (as L-Selenomethionine) 200 mcg 286%
Copper (as Copper Sulfate) 2 mg 100%
Manganese (as Manganese Sulfate) 2 mg 100%
Chromium (as Chromium Chloride) 120 mcg 100%
Molybdenum (as Sodium Molybdate) 75 mcg 100%
Vitamin D (as Cholecalciferol D-3) 1600 IU
Niacin (as Niacinamide & Niacin) 50 mg
Pantothenic Acid (as Calcium d-Pantothenate) 50 mg
Calcium (as Calcium Carbonate & Calcium Ascorbate) 200 mg
alpha-Lipoic Acid 25 mg
Lutemax® 2020 Lutein 2 mg
Lycopene 1 mg
Turmeric Root Extract (CurcuWIN™)(Curcuma longa)(Standardized to Curcuminoids) 500 mcg
Zeaxanthin (as Zeaxanthin Isomers) 400 mcg
Astaxanthin (from Haematococcus pluvialis) 50 mcg
beta-Cryptoxanthin 10 mcg
Choline (as Choline Bitartrate) 10 mg
Inositol 10 mg
Silica (as Silicon Dioxide) 4 mg
Boron (as Sodium Borate) 2 mg
Vanadium (as Sodium Metavanadate) 10 mcg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Corn Starch Generally_safe

It is used as a filler, binder, or thickener.

Stearic Acid Vegetable Source Unknown
Polyvinyl Alcohol Generally_safe

It is used as a coating for tablets or capsules.

Magnesium Stearate Vegetable Source Unknown
Titanium Dioxide (Natural Mineral Whitener) Unknown
Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Talc Avoid

It is used to improve powder flow and prevent clumping.

Caramel Color Generally_safe

It provides a brown color to the product.

Natural Vanilla Mint Flavor Unknown
Steviol Glycosides Safe

It is used as a sweetener.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$37$36$35$34$33 Mar 12 $34.99
GNC

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Related Supplements
Frequently Asked Questions
Is GNC Mega Men® Energy & Metabolism Multivitamin - 90 Caplets (45 Servings) a good supplement?

GNC Mega Men® Energy & Metabolism Multivitamin - 90 Caplets (45 Servings) received a product quality score of 55/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 34 active ingredients with 45 servings per container. Of the 11 inactive ingredients, 2 are rated safe and 1 are flagged for review.

What are the ingredients in GNC Mega Men® Energy & Metabolism Multivitamin - 90 Caplets (45 Servings)?

GNC Mega Men® Energy & Metabolism Multivitamin - 90 Caplets (45 Servings) contains 34 active ingredients: Vitamin A (50% as beta-Carotene & 50% Retinyl Acetate) (5000 IU), Vitamin C (as Ascorbic Acid & Calcium Ascorbate) (300 mg), Vitamin E (as Natural d-alpha Tocopheryl Acetate) (30 IU), Vitamin K (as phytonadione) (80 mcg), Thiamin (Vitamin B-1)(as Thiamin Mononitrate) (50 mg), Riboflavin (Vitamin B-2) (50 mg), and 28 more. Notable high-dose ingredients include Vitamin A at 556% DV, Vitamin C at 500% DV, Thiamin at 3333% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is GNC Mega Men® Energy & Metabolism Multivitamin - 90 Caplets (45 Servings) safe to take?

GNC Mega Men® Energy & Metabolism Multivitamin - 90 Caplets (45 Servings) has been analyzed for ingredient safety across all its components. Of 11 inactive ingredients, 2 are rated safe. 1 ingredient is flagged for review: Polyethylene Glycol. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.