BioStacks
Optimum Nutrition
Gold Standard 100% Whey Protein Powder (Double Rich Chocolate)
Powder · 1 Scoop (30.4g) · 29 servings · $1.39/serving
Best for
Ingredients (3)
Whey Protein
100%Dose
24 g
Target
20–30 g
Form
Not listed
Iron
0.7 mgTrace amount — not scored
Calcium
130 mgTrace amount — not scored
Nutrition
Calories, macros & sodium.
- Sodium130 mg
Other Ingredients (3)
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.
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
How to Take It
Take it anytime
Total daily protein is what matters — the post-workout "anabolic window" has not held up in controlled trials.
With or without food
On the label
Mix 1 scoop with 8-10 oz of cold liquid.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$40.36
Near the median of 119 whey protein supplements
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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.