Naked Whey vs Optimum Nutrition

Naked Nutrition: $2.10 per 25g protein. Optimum Nutrition: $0.90. Compare the recorded prices, formula differences, and evidence below.

Which should you choose?

For lower cost per 25g protein, the selected Optimum Nutrition listing costs $0.90, $1.20 less than the other selected listing.

Naked Nutrition: NAKED Whey (unflavored) · 907.2g pack · Price observed 2026-10-01.

Optimum Nutrition: Gold Standard Whey Protein Powder Vanilla (Vanilla) · 834.6g pack · Price observed 2026-10-01.

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01
NAKED Whey 2LB 100% Grass Fed Whey Protein Powder - Only 1 Ingredient, Unflavored Whey Protein, NSF Certified, Undenatured, Gluten Free, Soy Free, No GMOs, No Preservatives
Naked Nutrition

NAKED Whey

View product
02
Optimum Nutrition Gold Standard Whey Protein Powder Vanilla
Optimum Nutrition

Gold Standard Whey Protein Powder Vanilla

View product
Lab testing
Informed Choice · NSF Guideline 229 Functional Foods (not Certified for Sport)
Informed Choice
Index score
76GoodIndex / 100
84GoodIndex / 100
Cost / 25g protein
$2.10
$0.90
Protein / serving
25g
24g
Formulation / 100
100
50
Sugar / 25g protein
2.0g
1.0g
Flavor
unflavored
Vanilla

Naked Whey Isolate is not the original Naked Whey

Naked’s unflavored Whey Isolate product lists whey protein isolate and sunflower lecithin, with 30g protein per serving. Gold Standard 100% Whey lists 24g protein per serving. Comparing scoop prices would give different amounts of protein; the table normalizes both to 25g. The unflavored isolate’s two-ingredient description does not apply automatically to Naked’s flavored powders or original whey product.

Manufacturer information reviewed 2026-09-07. Formula descriptions are product-line context; the exact stored label drives each table value.

Score and nutrition trade-offs

Optimum Nutrition: Gold Standard Whey Protein Powder Vanilla (Vanilla) scores 84/100 versus 76/100 for Naked Nutrition: NAKED Whey (unflavored). The WheyIndex score compares protein delivery, value, and testing evidence; it does not measure muscle growth or establish product safety.

The stored labels give 2.0g sugar per 25g protein for Naked Nutrition and 1.0g for Optimum Nutrition. The selected flavors are unflavored and Vanilla; this is not a same-flavor taste test.

Products, sources, and dates

One highest-ranked eligible tracked whey listing per brand; lower cost per 25g breaks score ties. These selections do not represent every product from either brand.

Cost per 25g = recorded cost per serving ÷ protein grams per serving × 25. Flavor, pack size, and label rounding can affect the result. Scoring methodology.

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Frequently asked questions

Which selected product costs less: Naked Nutrition or Optimum Nutrition?

Optimum Nutrition: Gold Standard Whey Protein Powder Vanilla (Vanilla) costs $0.90 per 25g protein versus $2.10 for Naked Nutrition: NAKED Whey (unflavored). That is $1.20 less per equal protein portion using the displayed rounded prices, or 57% less than the more expensive listing.

Why can Naked have more protein per serving and still cost more?

Serving sizes and tub prices differ. A 30g-protein serving and a 24g-protein serving are not equal portions. WheyIndex divides the recorded serving cost by grams of protein and multiplies by 25, so the price comparison is for the same protein amount.

Do these results rank the whole brands?

No. The starting table selects the highest-ranked eligible tracked whey listing from each side, breaking score ties by lower cost per 25g. When scores are missing, the selection cannot establish a quality winner. Flavors, sizes, and available records may differ. Swap a powder to compare another version.

Are these prices checked today?

Not necessarily. The source records below show when the displayed tub price was observed and when nutrition was processed. These are stored observations, not checkout quotes. Manufacturer pages support formula context; their current prices are not substituted for the tracked retailer prices.