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Optimum Nutrition

Optimum Nutrition protein supplements and other nutrition products are here to support your athletic performance. Find the best variety of protein supplements by Optimum Nutrition based on your health and wellness goals at The Vitamin Shoppe.

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$52.99

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$54.99

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BOGO

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$29.99

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BOGO

Buy One, Get One 50% Off i
$54.99

Same-Day Delivery. Order by 2PM.

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BOGO

Buy One, Get One 50% Off i

BOGO

Buy One, Get One 50% Off i
$54.99

Same-Day Delivery. Order by 2PM.

Free ShippingiPick-Up

BOGO

Buy One, Get One 50% Off i

BOGO

Buy One, Get One 50% Off i
$29.99

Same-Day Delivery. Order by 2PM.

Pick-Up

BOGO

Buy One, Get One 50% Off i
$54.99

Same-Day Delivery. Order by 2PM.

Free ShippingiPick-Up

BOGO

Buy One, Get One 50% Off i

BOGO

Buy One, Get One 50% Off i
$29.99

Same-Day Delivery. Order by 2PM.

Pick-Up

BOGO

Buy One, Get One 50% Off i
$29.99

Same-Day Delivery. Order by 2PM.

Pick-Up

BOGO

Buy One, Get One 50% Off i
$54.99

Same-Day Delivery. Order by 2PM.

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Related Products
  • Optimum Nutrition
    ESSENTIAL AMIN.O. ENERGY – Tropical Sunrise (9.5 oz.

    WHY ESSENTIAL AMIN.O. ENERGY?

    • Supports energy and focus any time of day
    • Caffeine from Natural Sources
    • Amino acids to support muscle recovery
    • 0g of Sugar
    Rated 5 stars out of 5 stars, From 6 customer reviews
    $29.99
  • Optimum Nutrition
    GOLD STANDARD 100% CASEIN – Premium Micellar Casein
    • Supports muscle recovery
    • 24g of protein & 9g EAAs per serving
    • Slow-digesting
    • Chocolate Supreme flavor

    Fuel your goals even as you sleep with GOLD STANDARD® 100% CASEIN™ by Optimum Nutrition. This slow-digesting formula delivers 24g of premium micellar casein, plus 9g of EAAs to refuel recovering muscles when your body goes for hours without food—like at bedtime.

    Frequently Asked Questions

    What is micellar casein protein?

    Micellar casein is a milk protein that is digested more slowly than other proteins, providing an extended release of muscle-building amino acids that help prevent catabolism.

    What is catabolism?  

    Catabolism is the breakdown of protein. When your body goes for extended periods without food, or when it’s under significant metabolic stress during exercise, it can resort to catabolizing your muscles for energy.

    Rated 5 stars out of 5 stars, From 102 customer reviews
    $62.99
  • Optimum Nutrition
    ESSENTIAL AMIN.O. ENERGY + ELECTROLYTES – Sparkling Hydration
    • Essential amino acid delivery
    • Electrolyte support
    • Supports energy, focus, and muscle recovery
    • Caffeine derived from natural sources
    • Juicy Strawberry flavor

    Looking for the perfect pre-workout boost or anytime pick-me-up? ESSENTIAL AMIN.O. ENERGY + ELECTROLYTES by Optimum Nutrition supports muscle recovery before, during, and after exercise with 5g of micronized free-form amino acids. BONUS: it’s got 100mg of caffeine for energy and electrolytes to help replenish what’s lost with sweat.

    Frequently Asked Questions

    What are essential amino acids?

    Essential amino acids (EAAs) are amino acids that your body can’t produce enough of on its own, including leucine, isoleucine, valine, histidine, lysine, methionine, phenylalanine, threonine, and tryptophan. EAAs support muscle growth and recovery.

    What are micronized free-form amino acids?

    Micronized free-form amino acids are single amino acids that are already in a pre-digested form for faster absorption by the body.

    Rated 4 stars out of 5 stars, From 18 customer reviews
    $29.99
  • BodyTech
    Whey Tech Pro 24 Whey Protein Isolate &
    • 24g of protein, 1g of fat, and 1g of sugar per serving
    • Combination of whey protein isolate & concentrate
    • High concentration of BCAAs to support recovery
    • Rich Chocolate flavor

    Whey Tech Pro 24 Protein Powder by BodyTech delivers mouthwateringly fun flavor with serious, goal-crushing results. Each serving of this superior quality powder supplies 24g of whey protein isolate and concentrate to fuel lean muscle growth, plus a high concentration of BCAAs to support muscle recovery.

    It may taste too good to be true, but this Rich Chocolate protein powder has only 1g of fat and sugar per serving.

    Frequently Asked Questions

    What are BCAAs?

    Branched-chain amino acids (BCAAs) include leucine, isoleucine, and valine. They support muscle growth and reduce muscle fatigue.

    What's the difference between whey protein isolate and concentrate?

    Whey protein concentrate ranges from 70-80% protein, whereas whey protein isolate ranges from 90-95% protein. Combining whey protein isolate and concentrate results in the building blocks for metabolically active lean muscle tissue.

    Rated 4 stars out of 5 stars, From 54 customer reviews
    $44.99

What is Optimum Nutrition?

For over three decades, Optimum Nutrition has been helping performance-focused athletes with their health and wellness goals. Focused on maintaining quality, Optimum Nutrition protein powder and nutrition supplements are crafted with raw materials.

No matter your specific fitness or wellness goals, you can trust that Optimum Nutrition supplements undergo a strict ingredients selection process to ensure their products can help you achieve them.

What should I Look for when shopping for Optimum Nutrition products?

When browsing The Vitamin Shoppe’s Optimum Nutrition selection, look for popular nutrition products like:

  • Gold Standard Whey Protein: Great-tasting Optimum Nutrition whey protein powder has been a favorite of athletes for more than 30 years due to its 5 grams of BCAAs and 24 grams of protein per serving.
  • Creatine: Easy-to-mix micronized Optimum Nutrition creatine powder can be combined with Gold Standard Whey to make a complete shake or enjoyed on its own for muscle support.
  • Amino Energy: With a blend of amino acids and caffeine derived from natural sources, this powdered supplement may aid in muscle recovery and energy production, and it comes in a wide range of tempting flavors like Concord Grape and Peach Lemonade.

Where can I find Optimum Nutrition supplements?

Discover the best variety of Optimum Nutrition products online or in-store at The Vitamin Shoppe. Use our convenient filters to narrow down Optimum Nutrition products that suit your specific health and wellness goals.

As a licensed retailer, The Vitamin Shoppe© proudly provides deals on a selection of Optimum Nutrition items. Shop and purchase Optimum Nutrition products in our stores and online.

Find Fitness & Muscle Building at The Vitamin Shoppe Store Near You

There are more than 600 The Vitamin Shoppe® stores across the US, so it's very likely you can pop in and find Fitness & Muscle Building locally. Check out our store locator to find a Shoppe near you. Don’t forget—you’ll save at least 15% on every subscription with Auto Delivery, plus an addition 5% off select brands to help you stay on the path. Not only will you never miss a thing, but you’ll also get free shipping on subscription refills of $25 or more!* You define what better looks (and feels) like—Count on us to help you get there.


Shipping & Returns

  • FREE for Orders over $45

    Orders under $45, domestic shipping is only $7.99. Find more at our Shipping Policy page.

  • Return Policy for Items Purchased Online

    Shop with confidence with our Easy Returns Policy. Customers may return any opened or unopened merchandise purchased from any Vitamin Shoppe channel to any Vitamin Shoppe store within 30 days. Find more at our full Returns Policy page.

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