Optimum Nutrition Gold Standard 100% Whey vs Momentous Essential Grass-Fed Whey Protein

Last updated: Oct 16, 2026 · How we rank · Add a third product

Disclosure: We earn a commission if you buy through our links, at no cost to you. It never affects our rankings.

A
Optimum Nutrition
Optimum Nutrition Gold Standard 100% Whey#1 in Whey Protein
B
Momentous
Momentous Essential Grass-Fed Whey Protein#2 in Whey Protein
Best for
Best overall
Best tested pick

Measured specs Bars scale to the largest value shown. “Not listed” = not confirmed on the label or listing.

Active dose per serving
Not listed
Not listed
Protein per serving
24 g
20 g
Sugar per serving
Not listed
<1 g
Servings per container
Not listed
25
Price tier
Not listed
Not listed

What’s in it

Label highlights
  • 24 g protein/scoop
  • Many flavors
  • 20 g protein
  • Isolate
Third-party seal
None listed
✓ NSF Certified for Sport
Our take

The best-selling whey for decades: dependable taste, mixability and price.

Grass-fed whey isolate with NSF Certified for Sport testing.

Evidence note

Whey Protein: Whey protein is a convenient way to reach your daily protein target. We compare protein per serving, ingredient quality, third-party testing, taste reviews and price per gram of protein.

General information on the main ingredient, not a health claim about any product. These statements have not been evaluated by the FDA. Talk to your doctor before starting a supplement.

Winner by category

Protein per servingOptimum Nutrition Gold Standard 100% Whey
Third-party testingMomentous Essential Grass-Fed Whey Protein
Higher in our rankingOptimum Nutrition Gold Standard 100% Whey (#1)

“Winners” are only on confirmed numbers (higher is better, except sugar, footprint and price tier). They are not an overall verdict.

See all 10 whey protein

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Talk to your doctor or pharmacist before starting any supplement, especially if you take medication, are pregnant or nursing, or have a medical condition.

One email a week. Only what's worth buying.

Top pick, new rankings and one hidden gem. No spam.

Newsletter signup coming soon