Head-to-Head protein Matchup

IsoLean Grass-Fed Whey Isolate vs Optimum Nutrition Gold Standard 100% Whey

Direct side-by-side audit comparing per-serving cost, 30-day supply economics, and active ingredient highlights.

Lab Value Verdict

Optimum Nutrition Gold Standard 100% Whey wins on cost efficiency — saving $0.50/serving ( $15.00 per 30-day supply ).

Metric	IsoLean Grass-Fed Whey Isolate	Optimum Nutrition Gold Standard 100% Whey
Price / Serving	$1.85	$1.35
30-Day Supply Cost	$55.50/mo	$40.50/mo
Lab Quality Rating	★ 4.7 / 5.0 (235 audits)	★ 4.8 / 5.0 (254 audits)
Formula Highlights	28g Cold-filtered whey protein isolate Lactose-free and digestive enzyme blend 6.2g naturally occurring BCAAs per scoop	Primary source Whey Protein Isolate with concentrate blend Over 5g naturally occurring BCAAs for daily muscle recovery Industry benchmark for reliable taste and mixability
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Verified Offer	Check IsoLean Grass-Fed Whey Isolate Price →	Check Optimum Nutrition Gold Standard 100% Whey Price →

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