Brand: GNC Pro Performance

Tablet or PillOther CombinationsOff Market
Click to view full label

Net Contents

240 Tablet(s)

Serving Size

4 Tablet(s)

Servings Per Container

60

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 48107 06412 9

Product Version

CODE 752821 CFG

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Supplement Facts

Serving Size: 4 Tablet(s) · 3 per day

IngredientAmount Per Serving
Calcium Hydroxymethyl Butyrate Monohydrate1000 mg
Monopotassium Phosphate200 mg

Not Present

Other Ingredients

Dicalcium PhosphateCelluloseVegetable Acetoglycerides

Target Groups

Adult (18 - 50 Years)

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

DIRECTIONS: As a dietary supplement, take four tablets three times a day with meals.

Warnings & Precautions

Precautions re: Children

KEEP OUT OF REACH OF CHILDREN.

Precautions re: All Other

Do not exceed recommended intake levels.

Storage

Storage

Store in a cool, dry place.

Formulation

Formula re: Contains

250 mb PER TABLET

FDA Statements

FDA Disclaimer Statement

+These statements have not been evaluated by The Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

FDA Statement of Identity

DIETARY SUPPLEMENT

Other Label Statements

General Statements: All Other Content

BETA-HYDROXYL BETA-METHYLBUTYRATE

General: Product/Version Code

CODE 752821 CFG

General Statements: All Other Content

Lot No./Best By:

General Statements: All Other Content

Made in the USA

General Statements: All Other Content

Nutritional uses of Calcium {beta}-Hydroxyl {beta}-Methylbutyrate (HMB) are licensed to GNC under US Patent No. 5,348,979.

General Statements: All Other Content

PATENTED FORM

General Statements: All Other Content

Resistance training in conjunction with HMB may improve protein synthesis.+ In addition, HMB plays a role in decreasing protein breakdown during resistance training.+ Pro Performance(R) gives you pure HMB blended with Monopotassium Phosphate.

Manufacturer & Distributor

Other

1-888-462-2548

Distributor

General Nutrition Corporation

Pittsburgh, PA, 15222

Other

Market Reference

$17.99 – $269.95· 29 listings
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  • Gnc Pro Performance Active Fitness Vitapak Program

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  • Gnc Pro Performance 100% Whey Protein Powder

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  • GNC Pro Performance Bulk 1340

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  • GNC Pro Performance 100% Whey Protein Powder Banana Cream 25 Servings

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    $47.99

Where to Buy Locally

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Research & Studies

  • The effect of HMB supplementation on cardiovascular risk factors after four weeks of resistance training in amateur athletes

    H Arazi, H Rohani, A Ghiasi, M Davaran - 2015 - sid.ir

    … Yet, knowing about the effects of HMB supplementation on health factors can be useful for … The supplement group consumed 3 g HMB supplements (GNC Pro Performance®, USA) 3 …

    201510 citations
  • Resistance training & beta-hydroxy-beta-methylbutyrate supplementation on hormones

    H Arazi, H Rohani, A Ghiasi… - Revista Brasileira de …, 2015 - SciELO Brasil

    … None of the participants had a medical history of digestive … supplement group consumed HMB (GNC Pro Performance , … of body composition after HMB supplementation is consistent …

    201512 citations
  • A guide to understanding dietary supplements

    SM Talbott - 2012 - api.taylorfrancis.com

    … that using dietary supplements to promote health and reduce … health food outlets such as General Nutrition Centers (GNC), … Beta-hydroxy beta-methylbutyrate (HMB) supplementation in …

    201256 citations
  • International society of sports nutrition position stand: β-hydroxy-β-methylbutyrate (HMB)

    JA Rathmacher, LM Pitchford, JR Stout… - Journal of the …, 2025 - Taylor & Francis

    … 90-day rat toxicity study of supplementation with the free acid form of HMB (HMB-FA) yielded … [Citation28] showed that oral ingestion of 2.42 g HMB-FA in healthy young men did not alter …

    202540 citations
  • Oral nutritional supplement with β-hydroxy-β-methylbutyrate (HMB) improves nutrition, physical performance and ameliorates intramuscular adiposity in pre …

    LN Peng, YC Cheng, PC Yu, WJ Lee, MH Lin… - … of nutrition, health and …, 2021 - Elsevier

    … HMB (Ensure® Plus Advance containing 3g HMB) per day for 12 weeks, and the control group was provided with professional … -HMB supplementation on muscle and metabolic health …

    202172 citations
  • Sport Supplements and High School Athletes: A Study of Use and Motivations

    B Coovert - 2003 - scholarworks.wmich.edu

    … HMB supplementation is theoretically used to attenuate … concerning multivitamin supplementation, were to stay healthy, … discount stores and health food store chains such as GNC, …

    2003

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2011-11-25. DSLD Label ID: 2708. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.