BioStacks
ON OPtimum Nutrition

Gold Standard 100% Whey Double Rich Chocolate

Powder · 30.4 Gram · 29 servings

iHerbAmazon
60 / 100Good

Best for

Muscle

Score Breakdown

Formulation
75
Safety
80
Final score
60/100

Ingredients (3)

Whey Protein

100%

Dose

24 g

Target

20–30 g

Form

Not listed

Calcium

130 mg

Trace amount — not scored

Iron

0.7 mg

Trace amount — not scored

Nutrition

Calories and macros.

  • Calories120 Calorie(s)
  • Total Fat1.5 Gram(s)
    • Saturated Fat0.5 Gram(s)
  • Cholesterol35 mg
  • Total Carbohydrate3 Gram(s)
    • Dietary Fiber1 Gram(s)
    • Total Sugars1 Gram(s)
  • Protein24 Gram(s)

Other Ingredients (8)

Acesulfame PotassiumSweetener

Older NTP rodent studies (1980s, contested) reported lymphoma and leukemia at very high chronic doses; modern reviews (FDA 2003, EFSA 2000) concluded no cancer risk at human exposure levels but the issue is not fully resolved (Mishra 2020 review). Animal evidence suggests gut microbiome disruption (Bian 2017 — male mice on Ace-K showed altered microbiota and metabolic markers). Manufacturing uses methylene chloride, with potential residue concerns. Purely cosmetic additive — risk:benefit unfavorable for supplements.

Natural and Artificial FlavorsFlavor

The 'artificial' component means synthetic chemicals are used, but the exact compounds are proprietary and not disclosed on the label. If you have sensitivities or allergies, you cannot verify what's in it. Products using only natural flavors are more transparent.

CocoaFlavor

Common food ingredient used for chocolate flavoring in supplements

Sunflower LecithinEmulsifier

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

Whey ProteinProtein Source

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

Whey ProteinProtein Source

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

Whey ProteinProtein Source

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

Lactase

Not reviewed yet

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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.

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