---
title: "Cod Liver Oil — $4.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/cod-liver-oil"
last_updated: "2026-08-06T18:58:45.873Z"
locale: en
meta:
description: "Niche score 61/100 · $4.4M/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 61/100 · $4.4M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Cod Liver Oil — $4.4M/yr Amazon US Niche (2026) - Flapen"
---
# **cod liver oil**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 97Growth 12Conversion 84Competition 53Returns 100Price range 87Avg price 95Brand share 50Review moat 34Quality gap 22
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$4.4M**
$4.4M/yr · 1.7M searches
**Avg price**
**Incredible****$28.54**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.90–$66.55**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****9.3%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****75%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****3,067.42**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-25.2%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, cod liver oil is a $4.4M/yr Amazon United States market (1.7M searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Jan. Verdict: Worth a look — 61/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cod liver oil market data**
- **Units sold / yr**
- **150K–200K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **$4.3M–$5.7M**
- units × avg price
- **Conversion rate**
- **9.3%**
- **Avg BSR**
- **#328**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **65%**
- **Out of stock**
- **0.8%**
- **Avg brand age**
- **91 months**
- **Avg seller age**
- **149 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▼falling
**Sellers**
**586**
**Top-5 brand share**
**75%**
Top 20: 100%
**Top-5 click share**
**53%**
Top 20: 89%
**Open market**
**20%**
- Carlson28% - Natures Craft15% - Dr. Berg Nutritionals13% - NOW Foods12% - Nordic Naturals8% - Carlyle4%
## **Demand & seasonality**
Weekly Amazon search volume, last 98 weeks — -25.2% search growth over the last 90 days.
50K30KSpike '24Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/health-household/cod-liver-oil/trend)
## **Top cod liver oil search terms**
- **cod liver oil**923K/yr-25.7%7.5% conv. - **cod liver oil capsules**295K/yr-26.8%8.4% conv. - **cod liver oil liquid**99K/yr-32.8%5.7% conv. - **carlson cod liver oil**53K/yr-20.9%10.9% conv. - **cod liver oil softgels**26K/yr+10.2%8.6% conv. - **cod liver oil organic**40K/yr-46.2%5.3% conv. - **nordic naturals cod liver oil**21K/yr-14.1%7.8% conv. - **dr berg cod liver oil**12K/yr+16.7%13.7% conv. - **organic cod liver oil**16K/yr-29.2%4.2% conv. - **aceite de bacalao**14K/yr-8.8%1.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/cod-liver-oil/search-terms)
## **Top cod liver 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%$175K8%$350K12%$525K16%$700K1001K10K100K 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**Icelandic Wild Caught Cod Liver Oil Softgels - Fish Omega 3 EPA DHA Vitamin D & A 1000mg Per Serving - Burpless Capsules for Heart Joint Brain & Immune Support - 100 Count**Natures Craft**$17.25**4.7★4,088 rev](https://www.amazon.com/dp/B09GYWZ2LP) [2**Dr. Berg Omega-3 Cod Liver Fish Oil 60 Softgels Wild-Caught Icelandic Cod Omega 3 EPA & DHA Heart Brain Immune & Eye Support* Lemon Flavor 4X Lab-Tested Non-GMO No Fillers**Dr. Berg Nutritionals**$34.91**4.8★1,045 rev](https://www.amazon.com/dp/B0FDNB2DVS) [3**Carlson - Cod Liver Oil 1100 mg Omega-3s Liquid Fish Oil Supplement Wild-Caught Norwegian Arctic Sustainably Sourced Nordic Liquid Lemon 250 ml**Carlson**$30.87**4.8★12,043 rev](https://www.amazon.com/dp/B00014D08Y) [4**NOW Foods Supplements Cod Liver Oil Extra Strength 1 000 mg with Vitamins A & D-3 EPA DHA 90 Softgels**NOW Foods**$8.90**4.7★6,237 rev](https://www.amazon.com/dp/B00GIZVFQY) [5**Carlson - Cod Liver Oil 1100 mg Omega-3s Plus Vitamins A & D3 Wild Caught Norwegian Arctic Sustainably Sourced Nordic Fish Oil Liquid Lemon 500 mL (16.9 Fl Oz)**Carlson**$49.54**4.8★12,043 rev](https://www.amazon.com/dp/B003B3P4PO)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Dr. Berg Omega-3 Cod Liver Fish Oil 60 Softgels Wild-Caught Icelandic Cod Omega 3 EPA & DHA Heart Brain Immune & Eye Support* Lemon Flavor 4X Lab-Tested Non-GMO No Fillers**Dr. Berg Nutritionals**$34.91**1,045 rev10mo ago](https://www.amazon.com/dp/B0FDNB2DVS) [**Cod Liver Oil Softgels 1000MG | Omega 3 + Vitamin A & D3 | Wild Caught Cod Liver Oil Icelandic Sourced & Molecularly Distilled | EPA DHA Omega 3 Supplement for Bone Eye & Immune Health | 60 Ct**MAV NUTRITION**$13.50**342 rev11mo ago](https://www.amazon.com/dp/B0FHQKBFH4) [**Wild Caught Cod Liver Oil 2 000mg Per Serving 240 Softgels Extra Strength EPA DHA Omega 3 with Vitamin D & A Burpless Lemon Flavored Vision Heart Brain & Immune Support**DEAL SUPPLEMENT**$20.55**214 rev1y ago](https://www.amazon.com/dp/B0FCVRCJ2S) [**Sports Research Omega-3 Wild Alaskan Cod Liver Oil 1000mg with Vitamins A (1000 IU) & D3 (400 IU) - Burpless Bovine Free Non-GMO & MSC Certified Sustainable - 120 Softgels**Sports Research**$23.14**293 rev1y ago](https://www.amazon.com/dp/B0DLXD73B9) [**Cod Liver Oil 2 000mg Per Serving 360 Softgels | Burpless Lemon Flavored Rich in Omega 3 Vitamins A & D3 EPA DHA | Wild Caught Arctic Deep Sea Fish | Heart Brain & Immune Supplement**Micro Ingredients**$28.55**841 rev2y ago](https://www.amazon.com/dp/B0D3T12XYP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Carlson - Cod Liver Oil 1100 mg Omega-3s Plus Vitamins A & D3 Wild Caught Norwegian Arctic Sustainably Sourced Nordic Fish Oil Liquid Lemon 500 mL (16.9 Fl Oz)**Carlson**$49.54**4.8★**▲ 76%**](https://www.amazon.com/dp/B003B3P4PO) [**Dr. Berg Omega-3 Cod Liver Fish Oil 60 Softgels Wild-Caught Icelandic Cod Omega 3 EPA & DHA Heart Brain Immune & Eye Support* Lemon Flavor 4X Lab-Tested Non-GMO No Fillers**Dr. Berg Nutritionals**$34.91**4.8★**▲ 40%**](https://www.amazon.com/dp/B0FDNB2DVS) [**Wild Caught Cod Liver Oil 2 000mg Per Serving 240 Softgels Extra Strength EPA DHA Omega 3 with Vitamin D & A Burpless Lemon Flavored Vision Heart Brain & Immune Support**DEAL SUPPLEMENT**$20.55**4.5★**▲ 20%**](https://www.amazon.com/dp/B0FCVRCJ2S) [**Nordic Naturals Arctic-D Cod Liver Oil Lemon - 8 oz - 1060 mg Total Omega-3s + 1000 IU Vitamin D3 - EPA & DHA - Heart Brain Bone Immune & Mood Support - Non-GMO - 48 Servings**Nordic Naturals**$27.78**4.6★**▲ 18%**](https://www.amazon.com/dp/B002WTCM6M) [**Nordic Naturals Arctic Cod Liver Oil Lemon - 90 Soft Gels - 750 mg Total Omega-3s with EPA & DHA - Heart & Brain Health Healthy Immunity Overall Wellness - Non-GMO - 30 Servings**Nordic Naturals**$19.49**4.7★**▲ 14%**](https://www.amazon.com/dp/B00CHN1JU8)
**~~View all trending →~~**
## **What buyers say about cod liver oil**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“Very good product and very clean”*
**Taste-Overall**14%
*“No nasty after taste”*
**Vitamin**7%
*“a good amount of Vitamin D3”*
**Ease Of Chewing/Swallowing**5%
*“Easy to Swallow”*
**Value For Money**5%
*“reasonable price”*
**Flavor**5%
*“Smooth taste and Good size bottle gives you plenty to enjoy”*
**Advertised Vs Actual Product**4%
*“As advertised”*
**Ease Of Use**2%
*“Easy to use”*
**Nutritional Content**2%
*“I eat healthy”*
**Efficiency**2%
*“Its effective”*
### **What buyers complain about **
**Taste-Overall**18%
*“Its not a very strong taste”*
**Size-Overall**9%
*“Way too small”*
**Value For Money**8%
*“Costly”*
**Ease Of Chewing/Swallowing**6%
*“It's way too big for me to swallow”*
**Vitamin**4%
*“Missing type of vitamin D”*
**Smell**3%
*“Smelled and tasted rancid”*
**Oily/Greasy**3%
*“Cod liver oil”*
**Ingredients-Overall**2%
*“Look at the ingredients before ordering this stuff is poison”*
**Quality-Overall**2%
*“Had a lot of hopes for this low processed, less expensive brand”*
**Nutritional Content**2%
*“I do not eat enough fatty foods or meat”*
### **Top return reasons **
**Ingredients-Overall**27%
**Heart Health**9%
**Accuracy-Overall**9%
**Leak-Proof**9%
**Advertised Vs Actual Product**9%
**Smell**9%
**Dosage**9%
**Natural Ingredients**9%
**Certifications**9%
## **Common questions**
- **Is cod liver oil profitable to sell on Amazon United States?**
- The niche generates $4.4M/yr across 31 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -25.2%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the cod liver oil niche?**
- 17 brands and 586 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in cod liver oil?**
- Top complaints mined from reviews: Taste-Overall, Size-Overall, Value For Money. The return rate is 0.0%.
- **When does demand for cod liver oil peak?**
- Demand peaks in Jan; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the cod liver oil niche?**
- Listings span $8.90–$66.55; the average listing price is $28.54 (sweet spot $15–$100). The average incumbent carries 3,067 reviews — the moat a new listing must climb.
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