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omega 3 vitamin d

Skip it

Soft demand (-14.0% this quarter) — this niche doesn't clear our bar today.

Market size 48Growth 18Conversion 79Competition 27Returns 100Price range 90Avg price 95Brand share 28Review moat 40Quality gap 20

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$29.84

avg listing price — sweet spot $15–$100

Price range

Great$12.67–$48.03

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

Conversion

Great8.1%

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

Market size

Okay$264K

$264K/yr · 109K searches

Review moat

Okay2,500.21

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay88%

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

Competition

Okay69%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-14.0%

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

According to Flapen's Amazon United States niche tracking, omega 3 vitamin d is a $264K/yr Amazon United States market (109K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 48/100.

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

omega 3 vitamin d market data

Units sold / yr
10K–13K
avg 500–750/product
Revenue / yr
$298K–$373K
units × avg price
Conversion rate
8.1%
Avg BSR
#822
Page quality
0%
Prime
100%
Sponsored
86%
Out of stock
3.5%
Avg brand age
84 months
Avg seller age
153 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 falling

Sellers

587

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

8%

  • Nordic Naturals57%
  • SIGNIFY NATURE9%
  • Nature's Bounty9%
  • NOW Foods8%
  • Arofum5%
  • PrimeMD4%
  • Open — no brand owns it (3 brands, 8%)

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — -14.0% search growth over the last 90 days.
3K2KSpike '24Spike '25DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top omega 3 vitamin d search terms

  • omega d311K/yr
  • omega 3 with vitamin d11K/yr
  • omega 3 vitamin d11K/yr
  • nordic naturals ultimate omega d310K/yr
  • omega 3 and vitamin d9K/yr
  • fish oil vitamin d5K/yr
  • omega 3 d35K/yr
  • fish oil with vitamin d4K/yr
  • vitamin d and omega 3 combo5K/yr
  • fish oil with vitamin d35K/yr
All search terms

Top omega 3 vitamin d 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%10%$26K20%$53K30%$79K40%$106K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

What buyers say about omega 3 vitamin d

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

What buyers love

Quality-Overall17%

“Excellent product with all of the right extras”

Ease Of Chewing/Swallowing12%

“Easy to swallow pill”

Vitamin10%

“there are several kinds of Vitamin K] has really helped me”

Value For Money8%

“Good Value”

Taste-Overall6%

“No fishy taste and works well,”

Advertised Vs Actual Product4%

“Works as advertised”

Nutritional Content3%

“This is a straight forward supplement that brings several key nutrients”

Ingredients-Overall3%

“Good clean ingredients”

Heart Health3%

“Helps my heart better”

Dosage3%

“Other than that I like the idea that you can take anywhere from one to four tabs depending on what you are striving for health wise”

What buyers complain about

Taste-Overall13%

“Strong fish after taste”

Size-Overall9%

“big”

Smell8%

“smells awful”

Dosage6%

“not even enough for an entire month”

Advertised Vs Actual Product4%

“Misleading description”

Functionality-Overall3%

“didn't work for me”

Side Effects2%

“These supplements made me so sick”

Acid Regulator/Stomach Ache Relief2%

“Also have severe stomach pain as another reviewer stated”

Quality-Overall2%

“Poor quality capsules”

Leak-Proof2%

“The Capsules Leaked”

Top return reasons

Ingredients-Overall25%
Size-Overall25%
Leak-Proof25%
Vitamin25%

Common questions

Is omega 3 vitamin d profitable to sell on Amazon United States?
The niche generates $264K/yr across 14 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -14.0%. Flapen's verdict: Skip it (48/100).
How competitive is the omega 3 vitamin d niche?
9 brands and 587 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in omega 3 vitamin d?
Top complaints mined from reviews: Taste-Overall, Size-Overall, Smell. The return rate is 0.0%.
When does demand for omega 3 vitamin d peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the omega 3 vitamin d niche?
Listings span $12.67–$48.03; the average listing price is $29.84 (sweet spot $15–$100). The average incumbent carries 2,500 reviews — the moat a new listing must climb.