Optimum Nutrition - Gold Standard 100% Isolate
Optimum Nutrition - Gold Standard 100% Isolate
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Optimum Nutrition - Gold Standard 100% Isolate

4.7 stars out of 581 reviews
(4.7)|
581 ratings
Optimum Nutrition - Gold Standard 100% IsolateOptimum Nutrition Gold Standard 100 Isolate Rich Vanilla 1 58 lb 720 gOptimum Nutrition 100 Whey Gold Standard Protein Isolate Powder Rich Vanilla 2 91 lbsOptimum Nutrition 100 Whey Gold Standard Protein Isolate Powder Chocolate Bliss 3 lbs

Key item features

  • Ultra-Filtered Whey Protein Isolate
  • 25 g Protein - Helps Build* and Maintain Muscles
  • 5.5 g BCAAs** - Supports Endurance and Recovery
  • For Muscle Support and Recovery
  • Artificially Flavored
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Customer ratings & reviews

4.7 out of 5 stars
stars581 ratings548 reviews
How item rating is calculated
  1. 5 stars84% (489)
  2. 4 stars10% (58)
  3. 3 stars3% (17)
  4. 2 stars1% (7)
  5. 1 star2% (10)

Reviews summary

Pros
  • : Has a deep and velvety taste experience.
  • : Made with premium protein and ingredients.
  • : Creates a smooth texture when mixed with liquids.
  • : Product has a large serving capacity.
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Showing 1-3 of 548 reviews

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?4Q6S7BQAEEAX624193462
Nov 5, 2024
iHerb customer
5 out of 5 stars review

Excellent!

Optimum Nutrition's Gold Standard® 100% Isolate in Chocolate Bliss flavor has become a staple in my post-workout routine, providing a high-quality protein source that I can trust. The rich chocolate taste is incredibly satisfying, making it a treat to enjoy after my workouts or as a quick snack. I appreciate that it mixes easily in both water and milk, resulting in a smooth, creamy shake without any gritty texture. With 3 lb of product in the container, it offers great value, helping me meet my protein needs while keeping my taste buds happy.

Incentivized Review
Review from iherb.com
Helpful?4Q6S7BQAEEAX624193462
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?4Q6S7BQAEEAX624193462