Optimum Nutrition Gold Standard 100% Isolate, Protein Powder, Rich Vanilla, 2.91 Pounds, 44 Servings. Whey Protein Isolate (Packaging May Vary)
Optimum Nutrition Gold Standard 100% Isolate, Protein Powder, Rich Vanilla, 2.91 Pounds, 44 Servings. Whey Protein Isolate (Packaging May Vary)
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Optimum Nutrition Gold Standard 100% Isolate, Protein Powder, Rich Vanilla, 2.91 Pounds, 44 Servings. Whey Protein Isolate (Packaging May Vary)

Key item features

  • High Quality Hydrolyzed & Ultra-Filtered Whey Protein Isolate
  • 25 Grams of Protein Per Serving
  • 5.5 Grams of Naturally Occurring BCAAs per Serving
  • 1 Gram of Carbohydrates Per Serving
  • Banned Substance Tested
Current price is $84.64
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  • Free shipping
  • Free 30-day returns

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Arrives by Fri, Jun 26
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Sold and shipped by iHerb
4.557565675469606 stars out of 5, based on 14427 seller reviews(4.6)
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Customer ratings & reviews

4.5 out of 5 stars
stars608 ratings549 reviews
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Pros

  • : Has a balanced and smooth taste profile.
  • : Mixes with minimal effort and no clumping.
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Showing 1-3 of 549 reviews

Mar 22, 2026
MELLOSMOOTHE
Item details
Flavor: Unflavored
Size: 2.91 lbs
Sold and shipped byiHerb
5 out of 5 stars review

Verified Purchase

A great product which I've been using for years.

If your on a low carb diet like me then Optimum gold standards is the protien powder for you. Have been using Optimum products for years and have gotten huge results. I'm dropping my weight so I can build more muscle mass.

Helpful?4Q6S7BQAEEAX154905832
May 23, 2025
Jenn A.
5 out of 5 stars review

Seller Verified Purchase

I Keep Coming Back to This One

I've been using Optimum Nutrition protein powder for many years now, and it's the one product I consistently come back to. Over time, I've tried a variety of brands and blends, but nothing matches the reliability, taste, and quality that ON delivers. More importantly, it's always been effective. It helps support my recovery after workouts, fits seamlessly into my daily routine, and I genuinely notice the difference when I'm using it regularly. The consistency in quality over the years is what really sets it apart. Highly recommend to anyone from beginners to experienced lifters. It's a staple in my fitness journey, and I don't see that changing anytime soon.

Review from optimumnutrition.com
Helpful?4Q6S7BQAEEAX154905832
Dec 9, 2024
iHerb customer
5 out of 5 stars review

Excellent!

Absolutely great quality. The ingredients are excellent. The taste is good and chocolatey. The size and package are good. It's a great dietary supplement. When I started training, whey ingredient benefited my diet and workout routine. I now buy it regularly for fitness and I am not stopping. Gives you energy to continue training.

Incentivized Review
Review from iherb.com
Helpful?4Q6S7BQAEEAX154905832