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vitamin d 4000

Skip it

Soft demand (-40.0% this quarter) — this niche doesn't clear our bar today.

Market size 15Growth 5Conversion 93Competition 17Returns 100Price range 44Avg price 68Brand share 28Review moat 23Quality gap 24

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great11.5%

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

Avg price

Good€14.17

avg listing price — sweet spot $15–$100

Price range

Okay€6.71–€21.55

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

Brand share

Okay88%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad7,357.54

avg incumbent reviews — the moat a new listing must climb

Competition

Bad80%

top-5 click share — a locked-up shelf

Market size

Bad€60K

€60K/yr · 37K searches

Growth

Bad-40.0%

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

According to Flapen's Amazon Germany niche tracking, vitamin d 4000 is a €60K/yr Amazon Germany market (37K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 37/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

vitamin d 4000 market data

Units sold / yr
3K–4K
avg 100–250/product
Revenue / yr
€43K–€57K
units × avg price
Conversion rate
11.5%
Avg BSR
#84
Page quality
0%
Prime
92%
Sponsored
92%
Out of stock
5.0%
Avg brand age
49 months
Avg seller age
185 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 rising

Sellers

17

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

8%

  • WeightWorld42%
  • Bloom Naturals Beauty Supplements30%
  • natural elements6%
  • SEVENS NUTRITION6%
  • Dekristolvit5%
  • 43%
  • Open — no brand owns it (4 brands, 8%)

Demand

Weekly Amazon search volume, last 33 weeks — -40.0% search growth over the last 90 days.
1K750Spike '26Nov '25Dec '25Feb '26Mar '26Apr '26May '26Jun '26

Top vitamin d 4000 search terms

  • vitamin d 400010K/yr
  • vitamin d3 4000 ie7K/yr
  • vitamin d 4000 ie6K/yr
  • vitamin d3 40006K/yr
  • weightworld vitamin d3 k24K/yr
  • vitamin d3 k2 weightworld3K/yr
All search terms

Top vitamin d 4000 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%€6K20%€12K30%€18K40%€24K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about vitamin d 4000

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

What buyers love

Qualität insgesamt23%

“Bestes Produkt”

Vitamin14%

“Vitamin”

Dosierung12%

“Es sind noch viele Tabletten in der Dose”

Preis-Leistungs-Verhältnis9%

“Super Preis/Leistung”

Benutzerfreundlichkeit5%

“Beste Handhabung schnell und einfach”

beworben Vs Tatsächliches Produkt5%

“Das Produkt entspricht genau der Beschreibung”

Einfaches Kauen/Schlucken4%

“Gut schlucken”

Geschmack insgesamt4%

“Schmackhaft”

Gesamtgröße2%

“Passt”

Inhaltsstoffe – insgesamt2%

“Bei diesem Produkt von natural elements gefällt mir vor allem die einfache Dosierung und die Depot-Variante”

What buyers complain about

Vitamin13%

“Fraglich ohne vitamin k”

Dosierung9%

“1 Tropfen am Tag”

Funktionalität insgesamt8%

“Wirken tut da nix”

Haltbarkeit4%

“fragwürdige Haltbarkeitsangabe”

Messung / Ablesegenauigkeit3%

“Das beeinträchtigt die Genauigkeit der Pipette”

Qualität insgesamt3%

“quality not good”

Auslaufsicher3%

“Schraubverschluss leider undicht”

Gesamtgröße3%

“Tabletten sind klein”

Preis-Leistungs-Verhältnis3%

“Könnten etwas preiswerter sein”

Geschmack insgesamt3%

“Die Tropfen,sind geschmacksneutral”

Common questions

Is vitamin d 4000 profitable to sell on Amazon Germany?
The niche generates €60K/yr across 13 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -40.0%. Flapen's verdict: Skip it (37/100).
How competitive is the vitamin d 4000 niche?
10 brands and 17 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in vitamin d 4000?
Top complaints mined from reviews: Vitamin, Dosierung, Funktionalität insgesamt. The return rate is 0.1%.
What does it cost to enter the vitamin d 4000 niche?
Listings span €6.71–€21.55; the average listing price is €14.17 (sweet spot $15–$100). The average incumbent carries 7,358 reviews — the moat a new listing must climb.