PlainVitamins

Energy & Metabolism

by GNC Mega Men · other (e.g. tea bag) · 180 caplets

  • On the market (NIH)
  • DSLD label 334078
  • Serving 2 caplets
  • 90 servings

Energy & Metabolism by GNC Mega Men lists 38 ingredients, 38 with an amount per serving of 2 caplets, such as 1,500 mcg RAE of vitamin A, 300 mg of vitamin C, 50 mcg (2,000 IU) of vitamin D and 20.1 mg of vitamin E. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.

What is in Energy & Metabolism?

Each row as the label prints it, per serving of 2 caplets. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Energy & Metabolism: Supplement Facts rows against the market (DSLD label 334078, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene, Retinyl Acetate50% as Beta-Carotene, & 50% as Retinyl Acetate1,500 mcg RAE167%
Vitamin Cas Ascorbic Acid, Calcium Ascorbate300 mg333%Vitamin C in Energy & Metabolism against 18,583 products300 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg300 mg

Higher than 75% of 18,583 products listing vitamin C (median 100 mg).

Vitamin Das Cholecalciferol50 mcg (2,000 IU)250%Vitamin D in Energy & Metabolism against 14,175 products50 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg50 mcg

Higher than 81% of 14,175 products listing vitamin D (median 15 mcg).

Vitamin Eas D-Alpha-Tocopheryl Acetate20.1 mg134%
Vitamin Kas Phytonadione80 mcg67%Vitamin K in Energy & Metabolism against 4,607 products80 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg80 mcg

37% of 4,607 products listing vitamin K give more (median 80 mcg).

Thiamineas Thiamine Mononitrate, Vitamin B150 mg4,167%Thiamin in Energy & Metabolism against 9,830 products50 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg50 mg

Higher than 82% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B250 mg3,846%Riboflavin in Energy & Metabolism against 9,824 products50 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg50 mg

Higher than 86% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacin, Niacinamide50 mg313%Niacin in Energy & Metabolism against 12,413 products50 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg50 mg

Higher than 75% of 12,413 products listing niacin (median 20 mg). 1.4 times the adult UL a day.

Vitamin B6as Pyridoxine Hydrochloride50 mg2,941%Vitamin B6 in Energy & Metabolism against 15,277 products50 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg50 mg

Higher than 87% of 15,277 products listing vitamin B6 (median 6 mg).

Folate680 mcg DFE170%
Folic Acid400 mcg
Vitamin B12as Cyanocobalamin50 mcg2,083%Vitamin B12 in Energy & Metabolism against 14,425 products50 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg50 mcg

Higher than 51% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin300 mcg1,000%Biotin in Energy & Metabolism against 9,447 products300 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg300 mcg

Higher than 53% of 9,447 products listing biotin (median 200 mcg).

Pantothenic Acidas Calcium D-Pantothenate50 mg1,000%Pantothenic Acid (Vitamin B5) in Energy & Metabolism against 10,060 products50 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg50 mg

Higher than 72% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate10 mg2%Choline in Energy & Metabolism against 4,738 products10 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg10 mg

80% of 4,738 products listing choline give more (median 40 mg).

Calciumas Calcium Carbonate, Calcium D-Pantothenate, Dicalcium Phosphate210 mg16%Calcium in Energy & Metabolism against 17,831 products210 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg210 mg

Higher than 69% of 17,831 products listing calcium (median 115 mg).

Iodineas Potassium Iodide150 mcg100%Iodine in Energy & Metabolism against 6,382 products150 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg150 mcg

15% of 6,382 products listing iodine give more (median 150 mcg).

Magnesiumas Magnesium Oxide120 mg29%Magnesium in Energy & Metabolism against 14,003 products120 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg120 mg

Higher than 64% of 14,003 products listing magnesium (median 86 mg).

Zincas Zinc Oxide25 mg227%Zinc in Energy & Metabolism against 13,186 products25 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg25 mg

Higher than 85% of 13,186 products listing zinc (median 11 mg).

Seleniumas L-Selenomethionine200 mcg364%Selenium in Energy & Metabolism against 7,658 products200 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg200 mcg

Higher than 82% of 7,658 products listing selenium (median 55 mcg).

Copperas Cupric Sulfate2 mg222%Copper in Energy & Metabolism against 6,468 products2 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg2 mg

Higher than 66% of 6,468 products listing copper (median 1 mg).

Manganeseas Manganese Sulfate2 mg87%Manganese in Energy & Metabolism against 7,016 products2 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2 mg

38% of 7,016 products listing manganese give more (median 2 mg).

Chromiumas Chromium Chloride120 mcg343%Chromium in Energy & Metabolism against 7,825 products120 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg120 mcg

Higher than 54% of 7,825 products listing chromium (median 100 mcg).

Molybdenumas Sodium Molybdate75 mcg167%Molybdenum in Energy & Metabolism against 4,390 products75 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg75 mcg

Higher than 62% of 4,390 products listing molybdenum (median 50 mcg).

Coffee, Powderas Coffea arabica, Powder102 mgCoffee in Energy & Metabolism against 263 products102 mg per serving; the middle half of products list 100 mg to 100 mg, the median 100 mg.102 mg

Higher than 76% of 263 products listing coffee (median 100 mg).

Caffeinestandardized to 98%100 mgCaffeine in Energy & Metabolism against 3,358 products100 mg per serving; the middle half of products list 100 mg to 275 mg, the median 200 mg.100 mg

72% of 3,358 products listing caffeine give more (median 200 mg).

Alpha-Lipoic Acid25 mgAlpha Lipoic Acid in Energy & Metabolism against 2,407 products25 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.25 mg

68% of 2,407 products listing alpha lipoic acid give more (median 50 mg).

Inositol10 mgInositol in Energy & Metabolism against 4,042 products10 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.10 mg

72% of 4,042 products listing inositol give more (median 30 mg).

Capsicum Seed Extractas Capsicum annuum Seed Extract10 mgCapsicum in Energy & Metabolism against 874 products10 mg per serving; the middle half of products list 25 mg to 100 mg, the median 44.5 mg.10 mg

84% of 874 products listing capsicum give more (median 44.5 mg).

Silicaas Silicon Dioxide4 mgSilicon in Energy & Metabolism against 1,220 products4 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.4 mg

44% of 1,220 products listing silicon give more (median 4 mg).

Black Pepper Fruit Extract2.6 mgBlack Pepper in Energy & Metabolism against 2,363 products2.6 mg per serving; the middle half of products list 5 mg to 10 mg, the median 5 mg.2.6 mg

86% of 2,363 products listing black pepper give more (median 5 mg).

Piperinestandardized to 95%2.5 mgPiperine in Energy & Metabolism against 203 products2.5 mg per serving; the middle half of products list 4.75 mg to 10 mg, the median 5 mg.2.5 mg

85% of 203 products listing piperine give more (median 5 mg).

Boronas Sodium Borate2 mgBoron in Energy & Metabolism against 3,339 products2 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg2 mg

Higher than 64% of 3,339 products listing boron (median 1 mg).

Luteinas Marigold Flower Extract2 mgLutein in Energy & Metabolism against 2,493 products2 mg per serving; the middle half of products list 0.5 mg to 10 mg, the median 3 mg.2 mg

52% of 2,493 products listing lutein give more (median 3 mg).

Lycopene2 mgLycopene in Energy & Metabolism against 1,691 products2 mg per serving; the middle half of products list 0.5 mg to 5 mg, the median 1.2 mg.2 mg

Higher than 52% of 1,691 products listing lycopene (median 1.2 mg).

Zeaxanthinas Zeaxanthin Isomers400 mcgZeaxanthin in Energy & Metabolism against 1,215 products0.4 mg per serving; the middle half of products list 0.4 mg to 2 mg, the median 1 mg.0.4 mg

70% of 1,215 products listing zeaxanthin give more (median 1 mg).

Astaxanthinas Haematococcus pluvialis50 mcgAstaxanthin in Energy & Metabolism against 955 products0.05 mg per serving; the middle half of products list 0.1 mg to 4 mg, the median 1 mg.0.05 mg

80% of 955 products listing astaxanthin give more (median 1 mg).

Vanadiumas Sodium Metavanadate10 mcgVanadium in Energy & Metabolism against 1,744 products10 mcg per serving; the middle half of products list 10 mcg to 100 mcg, the median 25 mcg.UL 1,800 mcg10 mcg

60% of 1,744 products listing vanadium give more (median 25 mcg).

Source: NIH ODS Dietary Supplement Label Database, label 334078 (entered September 25, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 50 mg of niacin, 1.4 times the adult Tolerable Upper Intake Level.
  • 84% of the 874 products that print an amount of capsicum list more than its 10 mg of capsicum (median 44.5 mg).
  • 85% of the 203 products that print an amount of piperine list more than its 2.5 mg of piperine (median 5 mg).
  • 80% of the 955 products that print an amount of astaxanthin list more than its 0.05 mg of astaxanthin (median 1 mg).
  • 60% of the 1,744 products that print an amount of vanadium list more than its 10 mcg of vanadium (median 25 mcg).

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Energy & Metabolism's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions: As a dietary supplement, take two caplets daily with food.
Warnings
Warning: Cancer and reproductive harm - www.P65Warnings.ca.gov.
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. Inform your physician of this product's biotin content before any lab test. Niacin may cause a temporary flushing reaction. Contains 100 mg of caffeine.
Keep out of reach of children.
Do not take before bedtime.
Contains: Soybeans, fish (anchovy, mackerel, sardine, smelt, whiting, pollock, salmon, tuna, cod or a combination thereof). Contains bioengineered food ingredients.
Allergens and what it does not contain
No artificial flavors, gluten free, no milk. Gf Gluten free
Storage
For more information: 1-888-462-2548 gnc.com
Store in a cool, dry place.

Source: label statements in DSLD label 334078.

What else is on the label?

Other ingredients: Cellulose, Corn Starch, Stearic Acid, Polyvinyl Alcohol, Magnesium Stearate, Titanium Dioxide, Polyethylene Glycol, Talc, Caramel color, Vanilla Mint Flavor, Natural, Steviol Glycosides.

How many labels does Energy & Metabolism have?

10 labels are on file under this name since October 26, 2011: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 334078 (current) Entered September 25, 2025 · on the market · 180 caplets
  2. Label 331658 Entered June 25, 2025 · on the market · 180 caplets
  3. Label 334077 Entered May 21, 2025 · on the market · 90 caplets
  4. Label 228875 Entered July 23, 2020 · off the market December 3, 2024 · 90 caplets · UPC 0 48107 15492 9
  5. Label 228865 Entered July 23, 2020 · off the market December 3, 2024 · 180 caplets · UPC 0 48107 15493 6
  6. Label 69432 Entered January 25, 2017 · off the market May 6, 2020 · 180 caplets
  7. Label 69429 Entered January 25, 2017 · off the market October 8, 2019 · 90 caplets
  8. Label 33192 Entered May 23, 2014 · on the market · 216 caplets · UPC 0 48107 13516 4
  9. Label 797 Entered October 26, 2011 · off the market July 25, 2016 · 180 caplets
  10. Label 781 Entered October 26, 2011 · on the market · 90 caplets

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names GNC Holdings, LLC (distributor), Pittsburgh, PA. All GNC Mega Men products.

Where next?