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Fastenkur

Fastenkur shows low returns (0.0%), but soft demand (-43.3% this quarter) keeps it on the watch list.

Flapen Score

54
Worth a look

Top 15% of 1,367 Lebensmittel & Getränke niches · +8 vs the category median of 46

Market size 69Growth 3Conversion 41Competition 51Returns 100Price range 67Avg price 85Brand share 18Review moat 87Quality gap 76
This niche Category average · 1,367 niches

Is Fastenkur profitable on Amazon?

According to Flapen's Amazon Germany niche tracking, Fastenkur is a €716K/yr Amazon Germany market (305K searches/yr). The top 5 brands hold 93% of demand. Verdict: Worth a look — 54/100.

Fastenkur: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -43.3% over the last 90 days and 3.3% of searches end in a purchase.

€716K

revenue / yr

Units sold / yr10K
Search volume / yr-43.3%305K
Conversion rate3.3%
Avg price€71.83

Who owns the niche?

The top 5 brands hold 93% of demand, so 7% of the market is open.

7%

open market share

Brands · sellers9 · 17
Top-5 product click share55%
Open market7%
Avg brand age46 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.

0/100

page quality · 22 products

Sponsored placement95%
New entrants (1y)6· 4 succeeded
Avg rating4.3★
Avg reviews270

Top Fastenkur products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

€0€72K€143K€215K€286K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

9 falling

Sellers

17

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

55%

Top 20: 98%

Open market

5%

  • LiveFresh62%
  • Frank Juice14%
  • Duowell10%
  • Schoenenberger4%
  • NATURTREU2%
  • Rabenhorst2%
  • Open — no brand owns it (3 brands, 5%)

Fastenkur demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume305KCVR3.3%Products22Brands9Top 5 Brands93%OOS Rate10.6%Rating4.3★Reviews270Avg BSR#124
5K3KSpike '26Feb '26Mar '26Apr '26Apr '26May '26Jun '26Jun '26

Top Fastenkur search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • saftkur156K/yr
  • saftkur 3 tage73K/yr
  • saftkur 7 tage abnehmen22K/yr
  • saftkur 7 tage12K/yr
  • fastenkur15K/yr
  • saft kur6K/yr
  • saftkur 3 tage abnehmen6K/yr
  • live fresh saftkur 7 tage4K/yr
  • 3 tage saftkur4K/yr
  • detox saftkur3K/yr

What reviews say buyers love and hate about Fastenkur

What buyers mention most, as a share of all reviews.

What buyers love

77% of reviews
Geschmack insgesamt40%

Yummy

Qualität insgesamt13%

Super Produkt

Geschmack9%

Schmecken lecker

beworben Vs Tatsächliches Produkt3%

Hält was es verspricht

Ernährungs Gehalt3%

Fühle mich super, habe auch kein Hungergefühl

What buyers complain about

52% of reviews
Preis-Leistungs-Verhältnis14%

Absolute Geldverschwendung

Geschmack insgesamt11%

schmeckt absolut schrecklich

Geschmack8%

Geschmacklich eher nicht so gut

Süße4%

Zu süß

Verdünnt/wässrig4%

Wenn man das Pulver ins Glas tut und danach langsam Wasser einfüllt, kurz umrührt, dann ist alles aufgelöst

Common Fastenkur questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Fastenkur 54/100 on Amazon Germany — Worth a look. The niche generates €716K/yr across 22 tracked products. 4 of 6 products launched in the last 360 days are still selling. Search demand moved -43.3% over the last 90 days.
Fastenkur buyers on Amazon Germany complain most about Preis-Leistungs-Verhältnis, Geschmack insgesamt, Geschmack, the themes mined from the niche's reviews. Its return rate is 0.0%.