Health, Household & Baby
Optimum Nutrition 30th Anniversary Gold Standard Protein Powder Complete Pack, 4 Pound
Bias-adjusted across 85 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Health, Household & Baby.
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How the score was built
- Amazon ratings
- 85
- Raw star average
- 4.7 / 5
- Bayesian avg
- 4.48
used for the Bayesian percentile
unadjusted Amazon mean
raw rating shrunk to the category prior
Buy it: View on Amazon →
Same category · Health, Household & Baby
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