BioStacks
Optimum Nutrition

Gold Standard 100% Whey (Naturally Flavored Vanilla)

Powder · 32 Grams · 68 servings · $1.32/serving

73 / 100Good

Best for

Score Breakdown

Formulation
84
Safety
87
Final score
73/100

Ingredients (3)

Potassium

100%

Dose

140 mg

Target

99–500 mg

Form

BCAAs

100%

Dose

5500 mg

Target

5000–10000 mg

Form

Calcium

130 mg

Trace amount — not scored

Other Ingredients (6)

SucroseSweetener

Added sugars and high glycemic load; dental caries risk

Natural FlavorsFlavor

Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.

Whey ProteinProtein Source

Common dairy-derived protein that sometimes appears in the other ingredients list due to label parsing

Stevia ExtractSweetener

Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana

Sunflower LecithinEmulsifier

Non-GMO, non-allergenic emulsifier derived from sunflower seeds

Xanthan GumThickener

Natural thickener from fermented carbohydrates

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.