---
title: "Reviews — optimum nutrition whey protein"
canonical_url: "https://flapen.com/research/us/health-household/optimum-nutrition-whey-protein/reviews"
last_updated: "2026-08-12T10:52:08.760Z"
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meta:
  description: "Amazon product research for optimum nutrition whey protein: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:description": "Amazon product research for optimum nutrition whey protein: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:title": "Reviews — optimum nutrition whey protein"
---

# **Optimum Nutrition Whey Protein**

**Worth a look**

Shows a $8.4M/yr market, but brand-locked demand (top 5 brands take 99% of clicks) keeps it on the watch list.

Market size 100Growth 48Conversion 57Competition 36Returns 100Price range 77Avg price 91Brand share 2Review moat 10Quality gap 24

**Market size**

**Incredible****$8.4M**

$8.4M/yr · 3.1M searches

**Returns**

**Incredible****0.0%**

return rate — above 5% kills the launch gate

**Avg price**

**Great****$56.59**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$16.37–$124.43**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Conversion**

**Good****4.8%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Okay****+18.2%**

90-day search growth — must beat 0% to launch

**Competition**

**Okay****63%**

top-5 click share — leaders hold, buyers still browse

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Bad****31,942.5**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Bad****99%**

top-5 brand share — brand-locked demand

**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Reviews