Is fish oil fsa profitable to sell on Amazon United States?

The niche generates $57K/yr across 16 tracked products. 90-day search growth is -6.4%. Flapen's verdict: Skip it (41/100).

How competitive is the fish oil fsa niche?

13 brands and 92 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 73% of demand.

What do buyers complain about in fish oil fsa?

Top complaints mined from reviews: Size-Overall, Taste-Overall, Smell. The return rate is 0.0%.

What does it cost to enter the fish oil fsa niche?

Listings span $7.43–$48.06; the average listing price is $20.97 (sweet spot $15–$100). The average incumbent carries 14,093 reviews — the moat a new listing must climb.

fish oil fsa

Skip it

A small market ($57K/yr) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$20.97

avg listing price — sweet spot $15–$100

Price range

Great$7.43–$48.06

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

Brand share

Good73%

top-5 brand share — brands hold most of the demand

Conversion

Okay3.6%

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

Competition

Okay68%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-6.4%

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

Review moat

Bad14,092.69

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$57K

$57K/yr · 74K searches

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, fish oil fsa is a $57K/yr Amazon United States market (74K searches/yr). The top 5 brands hold 73% of demand. Verdict: Skip it — 41/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

fish oil fsa market data

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: $63K–$84K; units × avg price
Conversion rate: 3.6%
Avg BSR: #283
Page quality: 0%
Prime: 100%
Sponsored: 69%
Out of stock: 1.3%
Avg brand age: 102 months
Avg seller age: 154 days

Competition & brand share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

73%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

21%

MASON NATURAL28%
New Chapter20%
Needed.13%
Osteo Bi-Flex7%
Garden of Life7%
MAV NUTRITION6%

Demand

Weekly Amazon search volume, last 21 weeks — -6.4% search growth over the last 90 days.

Open Trend

Top fish oil fsa search terms

fish oil fsa11K/yr +2.8%3.0% conv.
fish oil hsa8K/yr +36.8%3.1% conv.
omega 3 hsa6K/yr +42.9%1.3% conv.
fish oil fsa eligible10K/yr -46.2%5.9% conv.
omega 3 fish oil fsa4K/yr +55.4%0.4% conv.
omega fsa4K/yr +76.9%0.4% conv.
fish oil hsa eligible6K/yr -33.0%5.3% conv.
fsa fish oil6K/yr -22.4%4.5% conv.
omega 3 hsa eligible4K/yr -1.2%4.7% conv.
omega 3 fsa eligible5K/yr -39.0%5.2% conv.

All search terms

Top fish oil fsa 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

MASON NATURAL Glucosamine & Fish Oil with DHA & Omega-3 30 Day Supply

MASON NATURAL$17.814.6★481 rev

New Chapter Wholemega for Moms Fish Oil Supplement Tiny Capsules 2000mg per Serving Prenatal DHA with Omega-3 + Vitamin D3 for Prenatal & Postnatal Support 500mg Each - 90 Count

New Chapter$19.394.6★1,413 rev

Prenatal Omega-3 Pro - High Potency Dose of Sustainably Sourced Fish Oil 1000mg DHA 1000mg EPA Encased in a Gelatin-Free Plant-Based Softgel Shell 120ct

Needed.$48.064.7★103 rev

Osteo Bi-Flex Advanced Omega-3 Joint Complex Algae Oil Plant-Based Supplement Improve Joint Function Strength Flexibility Mobility 80 Softgels

Osteo Bi-Flex$27.314.6★321 rev

MAV NUTRITION$34.124.6★30,234 rev

Newest

by launch date

Osteo Bi-Flex Advanced Omega-3 Joint Complex Algae Oil Plant-Based Supplement Improve Joint Function Strength Flexibility Mobility 80 Softgels

Osteo Bi-Flex$27.31321 rev

1y ago

Prenatal Omega-3 Pro - High Potency Dose of Sustainably Sourced Fish Oil 1000mg DHA 1000mg EPA Encased in a Gelatin-Free Plant-Based Softgel Shell 120ct

Needed.$48.06103 rev

2y ago

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$8.519,828 rev

3y ago

Nature Made Extra Strength Burp Less Fish Oil Omega 3 Supplements 1400 mg Minis Omega 3 Fish Oil as Ethyl Esters for Healthy Heart Brain Eyes Support 60 Softgels 30 Day Supply

Nature Made$11.925,064 rev

4y ago

Amazon Elements Super Omega-3 Wild-Caught Fish Oil Natural Lemon Flavor EPA & DHA Omega-3 Fatty Acids 1280 mg per Serving 120 Softgels (Packaging may vary)

Amazon Elements$11.487,084 rev

7y ago

What buyers say about fish oil fsa

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall24%

“the quality is consistent”

Taste-Overall9%

“no horrible taste or smell”

Value For Money9%

“Very affordable”

Ease Of Chewing/Swallowing7%

“Easier to Swallow”

Vitamin6%

“Good vitamin”

Advertised Vs Actual Product5%

“As described”

Joint Pain3%

“Eases joint pain”

Heart Health3%

“Great for heart health”

Nutritional Content3%

“Good supplement”

Dosage2%

“the dosing is perfect”

What buyers complain about

Size-Overall18%

“They are HUGE”

Taste-Overall15%

“Tastes terrible”

Smell5%

“Fishy smell”

Ease Of Chewing/Swallowing5%

“Uncomfortable to swallow”

Dosage5%

“May require a lower dose”

Advertised Vs Actual Product3%

“Deceptive advertising”

Value For Money3%

“Too expensive”

Quality-Overall2%

“Poor quality”

Side Effects2%

“had a horrible reaction to these”

Ingredients-Overall2%

“the ingredients are different”

Top return reasons

Value For Money26%

Size-Overall19%

Ingredients-Overall10%

Functionality-Overall7%

Ease Of Chewing/Swallowing7%

Smell7%

Oily/Greasy5%

Adhesion/Stickiness4%

Advertised Vs Actual Product2%

Accuracy-Overall2%

Common questions

Is fish oil fsa profitable to sell on Amazon United States?: The niche generates $57K/yr across 16 tracked products. 90-day search growth is -6.4%. Flapen's verdict: Skip it (41/100).
How competitive is the fish oil fsa niche?: 13 brands and 92 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 73% of demand.
What do buyers complain about in fish oil fsa?: Top complaints mined from reviews: Size-Overall, Taste-Overall, Smell. The return rate is 0.0%.
What does it cost to enter the fish oil fsa niche?: Listings span $7.43–$48.06; the average listing price is $20.97 (sweet spot $15–$100). The average incumbent carries 14,093 reviews — the moat a new listing must climb.