---
title: "Fish Oil — $52.7M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/fish-oil"
last_updated: "2026-08-06T19:43:35.270Z"
locale: en
meta:
description: "Niche score 64/100 · $52.7M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 64/100 · $52.7M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Fish Oil — $52.7M/yr Amazon US Niche (2026) - Flapen"
---
# **fish oil**
**Worth a look**
Shows a $52.7M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 21Conversion 86Competition 60Returns 100Price range 85Avg price 95Brand share 64Review moat 15Quality gap 19
**Market size**
**Incredible****$52.7M**
$52.7M/yr · 22.4M searches
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$23.91**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****9.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$7.42–$71.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-7.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****22,031.97**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, fish oil is a $52.7M/yr Amazon United States market (22.4M searches/yr). The top 5 brands hold 67% of demand. Verdict: Worth a look — 64/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fish oil market data**
- **Units sold / yr**
- **1.0M–1.0M**
- avg 60,000–80,000/product
- **Revenue / yr**
- **$23.9M–$23.9M**
- units × avg price
- **Conversion rate**
- **9.9%**
- **Avg BSR**
- **#72**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **78%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **155 days**
## **Competition & brand share**
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▲rising
**Sellers**
**161**
**Top-5 brand share**
**67%**
Top 20: 100%
**Top-5 click share**
**49%**
Top 20: 86%
**Open market**
**26%**
- Nature's Bounty21% - Sports Research15% - Nature Made13% - MAV NUTRITION10% - NOW Foods8% - Nordic Naturals8%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.2% search growth over the last 90 days.
500K300KPrime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/health-household/fish-oil/trend)
## **Top fish oil search terms**
- **omega 3**6.0M/yr-6.7%6.0% conv. - **fish oil**4.8M/yr-3.4%11.7% conv. - **omega 3 fish oil**3.1M/yr-3.5%7.7% conv. - **fish oil omega 3 supplements**2.0M/yr-11.0%11.3% conv. - **omega 3 supplement for women**1.1M/yr-21.5%4.7% conv. - **omega 3 supplements**575K/yr-5.9%6.0% conv. - **omega**504K/yr+1.2%2.5% conv. - **omega 3 fatty acid supplements**342K/yr-16.2%5.9% conv. - **fish oil supplements for women**244K/yr-45.0%9.2% conv. - **omega 3 epa dha**133K/yr-11.3%4.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/fish-oil/search-terms)
## **Top fish oil products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%4%$2.1M8%$4.2M12%$6.3M16%$8.4M1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Natures Bounty Fish Oil Omega 3 Supplements - Supports Heart Health 1200 Mg Fish Oil Omega-3 200 Softgels (Pack of 1)**Nature's Bounty**$12.70**4.7★77,158 rev](https://www.amazon.com/dp/B000NPYY04) [2**Sports Research Omega-3 Fish Oil 1250 - Triple Strength Fish Oil Supplement from Wild Alaska Pollock - MSC Certified Sustainable Non-GMO Soy Free - 90 Softgel Capsules**Sports Research**$26.97**4.7★61,137 rev](https://www.amazon.com/dp/B07DX89ZHN) [3**Triple Strength DHA Omega-3 Fish Oil 3600 mg | Over 2100mg Omega-3 Fatty Acids with 860 mg of DHA | 1300mg EPA | Best Essential Fatty Acids | Premium Wild Caught & Burpless Fish Oil | 120 Softgels**MAV NUTRITION**$34.12**4.6★30,234 rev](https://www.amazon.com/dp/B01NBTJFJB) [4![NatureWise Extra-Strength Omega 3 Fish Oil Supplement - 1000mg per Serving - 600 EPA & 400 DHA and Vitamin E - Sustainably Sourced Fish Oil - Lemon Flavor - 60 Softgels[1-Month Supply]](https://m.media-amazon.com/images/I/41A8nF92I0L.jpg)**NatureWise Extra-Strength Omega 3 Fish Oil Supplement - 1000mg per Serving - 600 EPA & 400 DHA and Vitamin E - Sustainably Sourced Fish Oil - Lemon Flavor - 60 Softgels\[1-Month Supply\]**NatureWise**$8.51**4.7★9,828 rev](https://www.amazon.com/dp/B0C5F59RWG) [5**Nutricost Omega 3 Fish Oil (2500MG) 120 Softgels 40 Servings**Nutricost**$20.31**4.7★3,565 rev](https://www.amazon.com/dp/B098KLWZHN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nature Made Fish Oil Omega 3 Supplements 2000mg Per Serving Softgels Omega 3 Fish Oil for Heart Health Support 250 Softgels**Nature Made**$25.46**555 rev10mo ago](https://www.amazon.com/dp/B0FS5MPD63) [**Omega 3 Fish Oil 3600 mg - Omega 3 Supplement | EPA & DHA - Heavy Metals Tested - Heart Brain & Joint Support - Purified Fish Oil for Men & Women - Lab Tested - Lemon Flavored - 90 Softgels**NUTRAHARMONY**$22.35**1,009 rev1y ago](https://www.amazon.com/dp/B0FDBHJ69J) [**Omega 3 Fish Oil with Vitamin D3 K2 300 Lemon Flavored Burpless Softgels | High EPA & DHA rTG Formula with CoQ10 & Astaxanthin | Gluten-Free Non-GMO**Arofum**$20.60**975 rev1y ago](https://www.amazon.com/dp/B0FDB3H3S3) [**Natures Bounty Omega 3 Plant-Based Omega 3 Fatty Acid Supplement 520mg Supports Whole Body Health Including Heart Skin Joint 30 Vegetarian Softgels Fish Oil Alternative**Nature's Bounty**$13.59**789 rev2y ago](https://www.amazon.com/dp/B0CXZHJXHV) [![NatureWise Extra-Strength Omega 3 Fish Oil Supplement - 1000mg per Serving - 600 EPA & 400 DHA and Vitamin E - Sustainably Sourced Fish Oil - Lemon Flavor - 60 Softgels[1-Month Supply]](https://m.media-amazon.com/images/I/41A8nF92I0L.jpg)**NatureWise Extra-Strength Omega 3 Fish Oil Supplement - 1000mg per Serving - 600 EPA & 400 DHA and Vitamin E - Sustainably Sourced Fish Oil - Lemon Flavor - 60 Softgels\[1-Month Supply\]**NatureWise**$8.51**9,828 rev3y ago](https://www.amazon.com/dp/B0C5F59RWG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**3M Reusable Respirator Half Facepiece 7502 NIOSH 3M Cool Flow Valve Dual Airline Supplied Air Compatible Integrated Dropdown Suspension Bayonet Connections For Chemical Handling Painting Med**3M**$33.38**4.6★**▲ 247%**](https://www.amazon.com/dp/B008MCUT86) [**Nature Made Fish Oil Omega 3 Supplements 2000mg Per Serving Softgels Omega 3 Fish Oil for Heart Health Support 250 Softgels**Nature Made**$25.46**4.8★**▲ 95%**](https://www.amazon.com/dp/B0FS5MPD63) [**Nature Made Fish Oil Omega 3 Supplements 1000 mg Softgels Omega 3 Fish Oil for Healthy Heart Support 90 Softgels 45 Day Supply**Nature Made**$8.92**4.8★**▲ 77%**](https://www.amazon.com/dp/B00YMSLAW8) [**Omega 3 Fish Oil 3600 mg - Omega 3 Supplement | EPA & DHA - Heavy Metals Tested - Heart Brain & Joint Support - Purified Fish Oil for Men & Women - Lab Tested - Lemon Flavored - 90 Softgels**NUTRAHARMONY**$22.35**4.7★**▲ 70%**](https://www.amazon.com/dp/B0FDBHJ69J) [**Sports Research Omega-3 Fish Oil 1250 - Triple Strength Fish Oil Supplement from Wild Alaska Pollock - MSC Certified Sustainable Non-GMO Soy Free - 180 Softgel Capsules**Sports Research**$49.65**4.7★**▲ 62%**](https://www.amazon.com/dp/B01BTBZWBU)
**~~View all trending →~~**
## **What buyers say about fish oil**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**25%
*“The capsules are good quality”*
**Value For Money**10%
*“Fair price”*
**Vitamin**7%
*“Best vitamins ever”*
**Ease Of Chewing/Swallowing**6%
*“Still no problem swallowing”*
**Taste-Overall**5%
*“no horrible taste or smell”*
**Advertised Vs Actual Product**5%
*“As described”*
**Heart Health**3%
*“Lowers your cholesterol level”*
**Nutritional Content**3%
*“It is good for my health”*
**Dosage**3%
*“The dosage is strong”*
**Smell**2%
*“No bad smell”*
### **What buyers complain about **
**Taste-Overall**13%
*“Bad Aftertaste”*
**Size-Overall**13%
*“They are HUGE”*
**Smell**7%
*“Smells bad”*
**Dosage**5%
*“Dosage is very high”*
**Ease Of Chewing/Swallowing**4%
*“Hurts to swallow”*
**Value For Money**4%
*“Too expensive”*
**Side Effects**3%
*“Made me nauseas and have headaches”*
**Quality-Overall**3%
*“Product was not the same quality as usual”*
**Acid Regulator/Stomach Ache Relief**2%
*“Upsets my stomach”*
**Advertised Vs Actual Product**2%
*“Deceptive advertising”*
### **Top return reasons **
**Value For Money**21%
**Size-Overall**18%
**Smell**9%
**Ingredients-Overall**8%
**Functionality-Overall**7%
**Oily/Greasy**6%
**Dosage**4%
**Ease Of Chewing/Swallowing**4%
**Advertised Vs Actual Product**3%
**Vitamin**2%
## **Common questions**
- **Is fish oil profitable to sell on Amazon United States?**
- The niche generates $52.7M/yr across 32 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -7.2%. Flapen's verdict: Worth a look (64/100).
- **How competitive is the fish oil niche?**
- 16 brands and 161 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in fish oil?**
- Top complaints mined from reviews: Taste-Overall, Size-Overall, Smell. The return rate is 0.0%.
- **When does demand for fish oil peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the fish oil niche?**
- Listings span $7.42–$71.21; the average listing price is $23.91 (sweet spot $15–$100). The average incumbent carries 22,032 reviews — the moat a new listing must climb.
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