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50

dha

Worth a look

Shows low returns (0.1%), but soft demand (-29.1% this quarter) keeps it on the watch list.

Market size 20Growth 10Conversion 72Competition 66Returns 100Price range 83Avg price 91Brand share 38Review moat 25Quality gap 47

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Avg price

Great£21.50

avg listing price — sweet spot $15–$100

Price range

Great£4.84–£74.04

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

Conversion

Good6.7%

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

Competition

Good45%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay82%

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

Review moat

Bad4,589.16

avg incumbent reviews — the moat a new listing must climb

Market size

Bad£79K

£79K/yr · 55K searches

Growth

Bad-29.1%

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

According to Flapen's Amazon United Kingdom niche tracking, dha is a £79K/yr Amazon United Kingdom market (55K searches/yr). The top 5 brands hold 82% of demand. Verdict: Worth a look — 50/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

dha market data

Units sold / yr
3K–3K
avg 0–100/product
Revenue / yr
£54K–£65K
units × avg price
Conversion rate
6.7%
Avg BSR
#304
Page quality
0%
Prime
100%
Sponsored
94%
Out of stock
2.3%
Avg brand age
64 months
Avg seller age
164 days

Competition & brand share

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 rising

Sellers

63

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

45%

Top 20: 86%

Open market

14%

  • Zita West52%
  • Zipvit11%
  • MAV NUTRITION10%
  • Nordic Naturals5%
  • Natures Aid4%
  • NOW4%
  • Open — no brand owns it (9 brands, 14%)

Demand

Weekly Amazon search volume, last 46 weeks — -29.1% search growth over the last 90 days.
2K2KSpike '25Black Friday '25Spike '26Sep '25Oct '25Dec '25Feb '26Mar '26May '26Jun '26

Top dha search terms

  • dha31K/yr
  • zita west10K/yr
  • dha supplements9K/yr
  • zita west pregnancy vitamins3K/yr
  • dha supplement2K/yr
All search terms

Top dha 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%5%£4K10%£8K15%£12K20%£16K101001K10K100K Reviews — right = deep review moat Market 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.

What buyers say about dha

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

What buyers love

Quality-Overall24%

“good quality capsules”

Value For Money14%

“Good value for money”

Ease Of Chewing/Swallowing7%

“The capsules are easy to take and”

Vitamin6%

“Lovely vitamins”

Advertised Vs Actual Product6%

“As described”

Ease Of Use4%

“Easy to store”

Taste-Overall4%

“with no unpleasant aftertaste”

Joint Pain3%

“Helps joint pain”

Dosage3%

“Very good capsules easy to take”

Nutritional Content3%

“Good dietary supplement”

What buyers complain about

Taste-Overall14%

“The aftertaste is awful”

Smell8%

“Fishy odor”

Dosage7%

“this is not the case its 2000 mg per serving”

Size-Overall7%

“They are huge”

Advertised Vs Actual Product5%

“Description deceiving”

Value For Money4%

“Not worth it”

Ease Of Chewing/Swallowing2%

“Capsules are a bit large to swallow”

Ingredients-Overall2%

“Ingredients have changed”

Vitamin2%

“Cant comment on effectiveness of the vitamins as only just started using it”

Vegan/Organic2%

“BEWARE Vegans and vegetarians”

Top return reasons

Smell33%
Heart Health17%
Size-Overall11%
Certifications11%
Vegan/Organic11%
Stuck/Fused Together6%
Side Effects6%
Moist/Dry6%

Common questions

Is dha profitable to sell on Amazon United Kingdom?
The niche generates £79K/yr across 32 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -29.1%. Flapen's verdict: Worth a look (50/100).
How competitive is the dha niche?
15 brands and 63 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in dha?
Top complaints mined from reviews: Taste-Overall, Smell, Dosage. The return rate is 0.1%.
What does it cost to enter the dha niche?
Listings span £4.84–£74.04; the average listing price is £21.50 (sweet spot $15–$100). The average incumbent carries 4,589 reviews — the moat a new listing must climb.