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vitamin d2

Skip it

A concentrated shelf (top 5 take 76% of clicks) — this niche doesn't clear our bar today.

Market size 41Growth 22Conversion 66Competition 20Returns 100Price range 51Avg price 70Brand share 40Review moat 24Quality gap 23

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Good$14.42

avg listing price — sweet spot $15–$100

Conversion

Good5.9%

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

Price range

Good$5.44–$24.93

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

Market size

Okay$211K

$211K/yr · 247K searches

Brand share

Okay81%

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

Review moat

Bad5,918.5

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-6.7%

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

Competition

Bad76%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, vitamin d2 is a $211K/yr Amazon United States market (247K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 42/100.

Data updated Aug 5, 2026 · scored weekly · How we score niches

vitamin d2 market data

Units sold / yr
15K–20K
avg 1,250–1,500/product
Revenue / yr
$216K–$288K
units × avg price
Conversion rate
5.9%
Avg BSR
#466
Page quality
0%
Prime
94%
Sponsored
75%
Out of stock
2.4%
Avg brand age
76 months
Avg seller age
166 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

14 rising

Sellers

77

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

15%

  • Vitamatic24%
  • Amazon Elements23%
  • Nutricost20%
  • EAT INTACT9%
  • FREEDA5%
  • Swanson4%
  • Open — no brand owns it (8 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 101 weeks — -6.7% search growth over the last 90 days.
13K8KHoliday '24Spike '25Prime Day '25DecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 1.8×

Top vitamin d2 search terms

  • vitamin d2119K/yr
  • d2 vitamin25K/yr
  • vitamin d2 2000 iu12K/yr
  • vitamina d2 para mujer11K/yr
  • vitamina d29K/yr
  • vitamin d 27K/yr
  • vit d24K/yr
  • vitamina d2 para mujer 500004K/yr
  • vitamina d2 para hombres4K/yr
  • vitamina d 24K/yr
All search terms

Top vitamin d2 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%$21K20%$42K30%$63K40%$84K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What buyers say about vitamin d2

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

What buyers love

Quality-Overall25%

“Great quality & easy to take”

Vitamin23%

“Quality vitamins”

Value For Money7%

“Not expensive”

Ease Of Chewing/Swallowing6%

“Easy to swallow”

Advertised Vs Actual Product4%

“As described”

Nutritional Content2%

“its been an easy way to support my overall wellness”

Energy Level2%

“Works well for energy”

Ease Of Use2%

“Convenient”

Absorbency2%

“Good absorption”

Taste-Overall2%

“No after taste”

What buyers complain about

Vitamin14%

“no taste to the vitamin”

Value For Money7%

“Too expensive”

Dosage6%

“Please beware and only take this amount under a doctors recommendation”

Size-Overall6%

“The capsules are small”

Side Effects4%

“I developed a rash on my hand”

Taste-Overall3%

“it doesnt taste”

Natural Resource Wastage2%

“Will be wasting 2/3rds”

Color2%

“I gave one less star because after you open them to air the color of the capsule changes after a few days”

Allergies2%

“I thought I was allergic to something else”

Advertised Vs Actual Product2%

“Measurement chart wrong”

Top return reasons

Value For Money56%
Vitamin14%
Dosage12%
Functionality-Overall4%
Size-Overall4%
Dilute/Watery4%
Joint Pain4%
Vegan/Organic2%

Common questions

Is vitamin d2 profitable to sell on Amazon United States?
The niche generates $211K/yr across 16 tracked products. 90-day search growth is -6.7%. Flapen's verdict: Skip it (42/100).
How competitive is the vitamin d2 niche?
14 brands and 77 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in vitamin d2?
Top complaints mined from reviews: Vitamin, Value For Money, Dosage. The return rate is 0.0%.
When does demand for vitamin d2 peak?
Demand peaks in Jul–Aug; the busiest month runs 1.8× the quietest.
What does it cost to enter the vitamin d2 niche?
Listings span $5.44–$24.93; the average listing price is $14.42 (sweet spot $15–$100). The average incumbent carries 5,919 reviews — the moat a new listing must climb.