Legion Whey+ Grass-Fed Whey Protein Isolate Wins
Winner
Legion Whey+ Grass-Fed Whey Protein Isolate logo

Legion Whey+ Grass-Fed Whey Protein Isolate

8.4

Health-conscious lifters who want grass-fed isolate with natural sweeteners and full transparency

VS
Optimum Nutrition Gold Standard 100% Whey protein tub

Optimum Nutrition Gold Standard 100% Whey

8.0

Budget-conscious gym-goers who want proven, great-tasting protein at the best value

David Nakamura
David Nakamura

Score Comparison

Criteria
Legion Whey+ Grass-Fed Whey Protein Isolate
Optimum Nutrition Gold Standard 100% Whey
Overall Score
8.4
8.0
Third-Party Testing
8.0
8.0
Heavy Metal Safety
9.0
8.0
Ingredient Purity
9.0
7.0
Protein Per Dollar
7.0
9.0
Protein Quality
9.0
8.5
Taste & Mixability
8.5
9.0
Transparency
9.0
6.5

Pricing & Features

Specification
Legion Whey+ Grass-Fed Whey Protein Isolate
Optimum Nutrition Gold Standard 100% Whey
Price
$1.67/serving
$1.08/serving
Package Price
$50 for 30 servings
$80 for 74 servings

Making Your Decision

Legion Whey+ Grass-Fed Whey Protein Isolate logo

When to Choose Legion Whey+ Grass-Fed Whey Protein Isolate

Health-conscious lifters who want grass-fed isolate with natural sweeteners and full transparency

Legion Whey+ combines grass-fed Irish whey isolate with a clean, naturally sweetened formula. Labdoor A+ rating and published lab results provide strong purity assurance even without NSF certification. The taste is consistently praised for a natural-sweetener protein.

Strengths

  • Naturally sweetened with stevia and erythritol — no artificial sweeteners or dyes
  • Grass-fed whey isolate from Irish dairy with full label transparency
  • Labdoor A+ rated with published independent lab test results

Limitations

  • Not NSF Certified for Sport — relies on Labdoor independent testing
  • Stevia-erythritol blend sweetener may have a slight aftertaste for some
  • Slightly more expensive than comparable isolates at $1.67/serving
Optimum Nutrition Gold Standard 100% Whey logo

When to Choose Optimum Nutrition Gold Standard 100% Whey

Budget-conscious gym-goers who want proven, great-tasting protein at the best value

Gold Standard has been the world's best-selling protein powder for over a decade, and the value proposition is hard to beat — 74 servings at $1.08 each with Informed Choice certification. The trade-off is artificial ingredients and a whey blend rather than pure isolate.

Strengths

  • Informed Choice certified — the most popular protein powder worldwide for a reason
  • Outstanding value at $1.08/serving with 74 servings in the 5lb size
  • Excellent taste and mixability across 20+ flavor options

Limitations

  • Contains artificial flavors (acesulfame potassium) and soy lecithin
  • Uses whey blend (isolate, concentrate, peptides) rather than pure isolate
  • Does not publish independent lab test results or batch-level COAs

Ready to Get Started?

Legion Whey+ Grass-Fed Whey Protein Isolate logo

Legion Whey+ Grass-Fed Whey Protein Isolate

Score: 8.4
Optimum Nutrition Gold Standard 100% Whey protein tub

Optimum Nutrition Gold Standard 100% Whey

Score: 8.0