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Mass Gainers

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  • Best Seller
    Bulk 1340 - Double Chocolate (15 Servings) Double Chocolate | GNC
    4 Flavors Available
    4 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Bulk 1340 - Double Chocolate (15 Servings)
    15 servings
    833
    BOGO 50% Off Mix-and-Match
    $81.99
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  • Best Seller
    Bulk 1340 - Vanilla Ice Cream (15 Servings) Vanilla Ice Cream | GNC
    4 Flavors Available
    4 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Bulk 1340 - Vanilla Ice Cream (15 Servings)
    15 servings
    833
    BOGO 50% Off Mix-and-Match
    $81.99
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  • Serious Mass - Chocolate (16 Servings) Chocolate | GNC
    4 Flavors + More Sizes Available
    4 Flavors + More Sizes Available
    Optimum Nutrition
    Optimum Nutrition Serious Mass - Chocolate (16 Servings)
    16 servings
    433
    $20 off $100 | $30 off $125+
    $79.99
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  • Best Seller Back in Stock
    Bulk 1340 - Strawberries and Cream (9 Servings) Strawberries and Cream | GNC
    4 Flavors Available
    4 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Bulk 1340 - Strawberries and Cream (9 Servings)
    9 servings
    833
    BOGO 50% Off Mix-and-Match
    $51.99
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  • Free Creatine With Hundred Twenty Five Dollar Purchase
    GET PRO PERFORMANCE® CREATINE ON US!
    Spend $125+ and get a free 100-serving container with code: BONUS. Limited-time, online onlyˇ.
    SHOP NOW
  • Bulk 1340 - Cookies and Cream (9 Servings) Cookies and Cream | GNC
    4 Flavors Available
    4 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Bulk 1340 - Cookies and Cream (9 Servings)
    9 servings
    833
    BOGO 50% Off Mix-and-Match
    $51.99
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  • Best Seller
    Bulk 1340 - Double Chocolate (9 Servings) Double Chocolate | GNC
    4 Flavors Available
    4 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Bulk 1340 - Double Chocolate (9 Servings)
    9 servings
    833
    BOGO 50% Off Mix-and-Match
    $51.99
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  • Best Seller Back in Stock
    Bulk 1340 - Vanilla Ice Cream (9 Servings) Vanilla Ice Cream | GNC
    4 Flavors Available
    4 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Bulk 1340 - Vanilla Ice Cream (9 Servings)
    9 servings
    833
    BOGO 50% Off Mix-and-Match
    $51.99
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  • Best Seller
    MASS XXX™ with MyoTor® - Chocolate (13 Servings) Chocolate | GNC
    4 Flavors Available
    4 Flavors Available
    GNC AMP
    GNC AMP MASS XXX™ with MyoTor® - Chocolate (13 Servings)
    13 servings
    172
    BOGO 50% Off Mix-and-Match
    $84.99
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  • Best Seller
    Mass XXX™ with MyoTor® - Vanilla (13 Servings) Vanilla | GNC
    4 Flavors Available
    4 Flavors Available
    GNC AMP
    GNC AMP Mass XXX™ with MyoTor® - Vanilla (13 Servings)
    13 servings
    172
    BOGO 50% Off Mix-and-Match
    $84.99
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  • Weight Gainer - Vanilla Ice Cream (6 Servings) Vanilla Ice Cream | GNC
    3 Flavors Available
    3 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Weight Gainer - Vanilla Ice Cream (6 Servings)
    6 servings
    267
    BOGO 50% Off Mix-and-Match
    $34.99
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  • Serious Mass - Vanilla (16 Servings) Vanilla | GNC
    4 Flavors + More Sizes Available
    4 Flavors + More Sizes Available
    Optimum Nutrition
    Optimum Nutrition Serious Mass - Vanilla (16 Servings)
    16 servings
    433
    $20 off $100 | $30 off $125+
    $79.99
    Subscribe to Save
  • MASS XXX™ with MyoTor® - Cookies and Cream (13 Servings) Cookies and Cream | GNC
    4 Flavors Available
    4 Flavors Available
    GNC AMP
    GNC AMP MASS XXX™ with MyoTor® - Cookies and Cream (13 Servings)
    13 servings
    172
    BOGO 50% Off Mix-and-Match
    $84.99
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  • MASS XXX™ with MyoTor® - Strawberry (13 Servings) Strawberry | GNC
    4 Flavors Available
    4 Flavors Available
    GNC AMP
    GNC AMP MASS XXX™ with MyoTor® - Strawberry (13 Servings)
    13 servings
    172
    BOGO 50% Off Mix-and-Match
    $84.99
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  • Weight Gainer - Double Chocolate (6 Servings) Double Chocolate | GNC
    3 Flavors Available
    3 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Weight Gainer - Double Chocolate (6 Servings)
    6 servings
    267
    BOGO 50% Off Mix-and-Match
    $34.99
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  • Dynamic Gainer High-Tech Mass Gainer: Vanilla Cheesecake (15 Servings) | GNC
    Beyond Raw®
    Beyond Raw® Dynamic Gainer High-Tech Mass Gainer: Vanilla Cheesecake (15 Servings)
    15 servings
    43
    BOGO 50% Off Mix-and-Match
    $74.99
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  • Dynamic Gainer High-Tech Mass Gainer: Chocolate Éclair (15 Servings) | GNC
    Beyond Raw®
    Beyond Raw® Dynamic Gainer High-Tech Mass Gainer: Chocolate Éclair (15 Servings)
    15 servings
    43
    BOGO 50% Off Mix-and-Match
    $74.99
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  • Weight Gainer - Strawberries and Cream (6 Servings) Strawberries and Cream | GNC
    3 Flavors Available
    3 Flavors Available
    GNC Pro Performance®
    GNC Pro Performance® Weight Gainer - Strawberries and Cream (6 Servings)
    6 servings
    267
    BOGO 50% Off Mix-and-Match
    $34.99
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  • Serious Mass™ - Chocolate Peanut Butter (8 Servings) Chocolate Peanut Butter | GNC
    4 Flavors + More Sizes Available
    4 Flavors + More Sizes Available
    Optimum Nutrition
    Optimum Nutrition Serious Mass™ - Chocolate Peanut Butter (8 Servings)
    8 servings
    433
    $20 off $100 | $30 off $125+
    $49.99
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  • Dynamic Gainer High-Tech Mass Gainer: Strawberry Shortcake (15 Servings) | GNC
    Beyond Raw®
    Beyond Raw® Dynamic Gainer High-Tech Mass Gainer: Strawberry Shortcake (15 Servings)
    15 servings
    43
    BOGO 50% Off Mix-and-Match
    $74.99
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  • Serious Mass™ - Vanilla (8 Servings) Vanilla | GNC
    4 Flavors + More Sizes Available
    4 Flavors + More Sizes Available
    Optimum Nutrition
    Optimum Nutrition Serious Mass™ - Vanilla (8 Servings)
    8 servings
    433
    $20 off $100 | $30 off $125+
    $49.99
    Subscribe to Save
  • Serious Mass™ - Chocolate (8 Servings) Chocolate | GNC
    4 Flavors + More Sizes Available
    4 Flavors + More Sizes Available
    Optimum Nutrition
    Optimum Nutrition Serious Mass™ - Chocolate (8 Servings)
    8 servings
    433
    $20 off $100 | $30 off $125+
    $49.99
    Subscribe to Save
  • Mass Gainer - Vanilla Ice Cream (16 Servings) | GNC
    Mutant
    Mutant Mass Gainer - Vanilla Ice Cream (16 Servings)
    16 servings
    10
    $20 off $100 | $30 off $125+
    $54.99
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  • Mass Gainer - Triple Chocolate (16 Servings) | GNC
    Mutant
    Mutant Mass Gainer - Triple Chocolate (16 Servings)
    16 servings
    10
    $20 off $100 | $30 off $125+
    $54.99
    Subscribe to Save
  • Super Mass Gainer - Rich Chocolate (8 Servings) Rich Chocolate | GNC
    3 Flavors Available
    3 Flavors Available
    Dymatize®
    Dymatize® Super Mass Gainer - Rich Chocolate (8 Servings)
    8 servings
    55
    $20 off $100 | $30 off $125+
    $54.99
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  • Super Mass Gainer™ - Gourmet Vanilla (8 Servings) Gourmet Vanilla | GNC
    3 Flavors Available
    3 Flavors Available
    Dymatize®
    Dymatize® Super Mass Gainer™ - Gourmet Vanilla (8 Servings)
    8 servings
    55
    $20 off $100 | $30 off $125+
    $54.99
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  • Super Mass Gainer - Fruity Pebbles (8 Servings) Fruity Pebbles | GNC
    3 Flavors Available
    3 Flavors Available
    Dymatize®
    Dymatize® Super Mass Gainer - Fruity Pebbles (8 Servings)
    55
    $20 off $100 | $30 off $125+
    $54.99
  • Mass Gainer - Chocolate (10 Servings) | GNC
    Raw Nutrition
    Raw Nutrition Mass Gainer - Chocolate (10 Servings)
    10 servings
    4
    BOGO 50% Off Mix-and-Match
    $54.99
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  • Amplify XL® - Double Chocolate Explosion (48 Servings) Double Chocolate Explosion | GNC
    7 Flavors + More Sizes Available
    7 Flavors + More Sizes Available
    PMD®
    PMD® Amplify XL® - Double Chocolate Explosion (48 Servings)
    48 servings
    55
    $20 off $100 | $30 off $125+
    $109.99
    Subscribe to Save
  • Mass Gainer - Cookies & Cream (16 Servings) | GNC
    Mutant
    Mutant Mass Gainer - Cookies & Cream (16 Servings)
    16 servings
    10
    $20 off $100 | $30 off $125+
    $54.99
    Subscribe to Save
  • Amplify XL® - Vanilla Flex (48 Servings) Vanilla Flex | GNC
    7 Flavors + More Sizes Available
    7 Flavors + More Sizes Available
    PMD®
    PMD® Amplify XL® - Vanilla Flex (48 Servings)
    48 servings
    55
    $20 off $100 | $30 off $125+
    $109.99
    Subscribe to Save
30 of 54

Mass gainers are designed to fuel your muscle gains and goals with high calorie, carbohydrate and protein dense formulas. Mass gainers often include popular ingredients like creatine and vitamins and minerals to help support gains in your bulking phase. Browse drinkable high calorie, protein dense supplements that make it easy to get your nutrition and fuel, and also hit your macros. Check out GNC's best mass gainer supplement buying guide here.

Protein is a key player when it comes to supporting your efforts in the gym by fueling muscle strength and gains. If you’re wondering how to gain mass or how to gain muscle mass fast – a mass gainer may be right for you.

How do I gain muscle mass?

More calories, protein and a strength training program is the recipe required to build muscle mass. Demanding training sessions require proper recovery to heal, grow and repeat. Mass gaining goals require calories and nutrition above and beyond what one might consume in a typical day. Excess calories from nutrient dense sources are in fact, dense. Volume wise, these high nutrient foods may be tough to swallow, leaving lots of room for error in meeting your macro goals. Especially if you’re aiming to consume the recommended 500+ ADDITIONAL calories needed each day for weight gain.

What is a mass gainer?

Mass gainers are powders with more calories, protein, carbohydrates and (occasionally) fats you’re your traditional protein powder. They may also contain other ingredients like vitamins, minerals, and creatine – an all-around shake for convenience.

What does a mass gainer do?

Mass gainers provide the additional nutrients you need like amino acids, creatine and carbohydrates to support proper recovery from intense training, while also putting the building blocks in place for muscle growth.

Why should I use a mass gainer?

With the strenuous demands on your body during heavy training, having the right blend of amino acids for proper recovery and muscle building gives you the advantage you need to grow. Gainers may be the perfect supplement to add to your routine if you’re having trouble figuring out what to eat to gain muscle mass, not meeting your nutritional needs from food alone, or looking to dial in your macros.

Wondering when to take mass gainer? Perfect for post-workout recovery or anytime during the day when you need a bit extra.

Do mass gainers work?

For a quick fix of extra nutrition for your weight gaining goals, mass gainers can help to fuel results. With so many great tasting options to choose from, you can trust GNC has your back in supporting that extra lift you need to reach those massive goals.

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