Optimum Nutrition Gold Standard 100% Whey
by Optimum Nutrition
"The world's best-selling whey protein for over 20 years"
Overview
Optimum Nutrition Gold Standard 100% Whey has been the benchmark whey protein since its introduction. Each serving delivers 24g of protein primarily from whey protein isolate (the first ingredient), along with whey protein concentrate and whey peptides. With over 142,000 Amazon reviews and a 4.7-star rating, it's the most reviewed protein powder on the platform. The Double Rich Chocolate flavor consistently ranks as the #1 best-selling protein powder on Amazon. ON's manufacturing facilities are GMP-certified and the product is Informed Sport certified, making it trusted by professional athletes worldwide.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Whey Protein Isolate | Primary source |
| Whey Protein Concentrate | Secondary source |
| Whey Peptides | Tertiary source |
| Total Protein | 24g per scoop |
| BCAAs | 5.5g per serving |
| Leucine | ~2.5g per serving |
Pros & Cons
What We Like
- 24g protein per serving with only 120 calories
- Whey protein isolate as the primary ingredient
- Over 20 flavors available — consistently great taste
- Mixes easily with no clumping
- Informed Sport certified for banned substance testing
- 5.5g BCAAs per serving naturally occurring
- Extremely well-established brand with 20+ year track record
What Could Be Better
- Contains artificial sweeteners (sucralose, acesulfame potassium)
- Contains soy lecithin (allergen concern for some)
- Not the cheapest per-serving option
- Some flavors are overly sweet
- Lactose content may cause issues for sensitive individuals
Who Is This For?
Best For
- General fitness enthusiasts
- Post-workout recovery
- Anyone new to protein supplements
- Athletes needing Informed Sport certification
Not Ideal For
- Dairy-free or vegan individuals
- Those avoiding artificial sweeteners
- Soy allergy sufferers
Our Verdict
Gold Standard Whey earned its name. It's not the cheapest or most innovative, but it delivers reliable quality, great taste, and proven results. The fact that it's maintained the #1 position for over two decades speaks volumes. If you want a no-nonsense whey protein that just works, this is the safest bet in the industry.