Is weight gainer profitable to sell on Amazon Germany?

The niche generates €841K/yr across 47 tracked products. 7 of 8 products launched in the last 360 days are still selling. 90-day search growth is -9.5%. Flapen's verdict: Worth a look (64/100).

How competitive is the weight gainer niche?

16 brands and 59 sellers compete. The top 5 products take 30% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in weight gainer?

Top complaints mined from reviews: Preis-Leistungs-Verhältnis, Geschmack insgesamt, Geschmack. The return rate is 0.1%.

When does demand for weight gainer peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the weight gainer niche?

Listings span €12.81–€84.97; the average listing price is €41.26 (sweet spot $15–$100). The average incumbent carries 2,211 reviews — the moat a new listing must climb.

weight gainer

Worth a look

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Avg price

Incredible€41.26

avg listing price — sweet spot $15–$100

Price range

Great€12.81–€84.97

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

Competition

Great30%

top-5 click share — an open shelf

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Market size

Good€841K

€841K/yr · 593K searches

Conversion

Okay3.4%

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

Review moat

Okay2,211.19

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay81%

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

Growth

Bad-9.5%

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

According to Flapen's Amazon Germany niche tracking, weight gainer is a €841K/yr Amazon Germany market (593K searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 64/100.

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

Market data

Units sold / yr: 15K–20K; avg 250–500/product
Revenue / yr: €619K–€825K; units × avg price
Launch success: 88%; 7 of 8 new (360d)
Conversion rate: 3.4%
Avg BSR: #77
Page quality: 0%
Prime: 87%
Sponsored: 96%
Out of stock: 7.2%
Avg brand age: 80 months
Avg seller age: 181 days

Competition

Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.

Brands

16 falling

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

30%

Top 20: 75%

Open market

15%

Optimum Nutrition45%
Mammut Nutrition15%
Weider12%
GEN GERMAN ELITE NUTRITION5%
SAM'S4%
Bulk3%
Open — no brand owns it (10 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 47 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Mammut Nutrition Crash Weight Gainer Pulver Chocolate 4 5 kg 538 kcal/Shake für Gewichtszunahme 80% Kohlenhydrate 4-Komponenten Protein Ideal für Ausdauer- und Leistungssportler

Mammut Nutrition€38.564.2★1,383 rev

Optimum Nutrition Serious Mass Weight Gainer Pulver Geschmack Vanille 2.73kg 8 Portionen

Optimum Nutrition€39.734.3★12,550 rev

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Vanille 2.66kg 8 Portionen

Optimum Nutrition€41.414.5★43 rev

Optimum Nutrition Serious Mass Weight Gainer Pulver Geschmack Schokolade 5.45kg 16 Portionen

Optimum Nutrition€59.554.3★15,604 rev

Weider Mega Mass 4000 - Weight Gainer Pulver mit 48g Protein & Kreatin pro Portion - Für hohe Kalorienaufnahme - 3kg - Vanille

Weider€43.954.4★1,171 rev

Newest

by launch date

GEN GERMAN ELITE NUTRITION Clean Weight Gainer - 3 kg

GEN GERMAN ELITE NUTRITION€39.6581 rev

8mo ago

GEN GERMAN ELITE NUTRITION Clean Weight Gainer - 3 kg

GEN GERMAN ELITE NUTRITION€39.8291 rev

8mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Vanille 2.66kg 8 Portionen

Optimum Nutrition€41.4143 rev

11mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Schokolade 5.34kg 16 Portionen

Optimum Nutrition€63.6836 rev

11mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Schokolade 2.66kg 8 Portionen

Optimum Nutrition€40.6340 rev

11mo ago

Reviews

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

What buyers love

Geschmack insgesamt22%

“schmeckt super”

Ernährungs Gehalt13%

“Protein”

Geschmack11%

“Habe Schokogeschmack”

Qualität insgesamt9%

“Top Produkt”

Löslichkeit6%

“lässt sich super cremig mixen”

Preis-Leistungs-Verhältnis3%

“Das Produkt ist für den preis ok”

Gewichtsverlust3%

“Clean Weight Gainer”

Süße3%

“Ok. Nicht zu süß, alles ok”

Gewichtszunahme2%

“Leckerer Weight Gainer, das Preis-Leistungs-Verhältnis stimmt”

Gesamtgröße2%

“Passt”

What buyers complain about

Preis-Leistungs-Verhältnis12%

“Preisanstieg”

Geschmack insgesamt12%

“Ungenießbar”

Geschmack6%

“Geschmack unvergleichlich schlecht”

Süße5%

“Sehr süß und sandig im Mund”

Ernährungs Gehalt4%

“obwohl sie sonst keine typischen Protein- oder Weight-Gainer-Shakes mag.”

Löslichkeit3%

“Das auflösen lässt auch zu wünschen übrig, selbst nach intensivem schütteln grobe Pulver Stückchen”

Textur/Konsistenz – insgesamt3%

“Sandige Konsistenz”

Verdünnt/wässrig2%

“löst sich kaum auf”

Geruch2%

“Geschmack und Geruch geht gar nicht”

Dosierung2%

“Portionsangabe nicht praxisnah (–1 Stern).”

Top return reasons

Geschmack25%

Geschmack insgesamt13%

Süße13%

Geruch6%

Preis-Leistungs-Verhältnis6%

Feucht/Trocken6%

Kompatibilität – insgesamt6%

Funktionalität insgesamt6%

beworben Vs Tatsächliches Produkt6%

Gesamtgröße6%

Common questions

Is weight gainer profitable to sell on Amazon Germany?: The niche generates €841K/yr across 47 tracked products. 7 of 8 products launched in the last 360 days are still selling. 90-day search growth is -9.5%. Flapen's verdict: Worth a look (64/100).
How competitive is the weight gainer niche?: 16 brands and 59 sellers compete. The top 5 products take 30% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in weight gainer?: Top complaints mined from reviews: Preis-Leistungs-Verhältnis, Geschmack insgesamt, Geschmack. The return rate is 0.1%.
When does demand for weight gainer peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the weight gainer niche?: Listings span €12.81–€84.97; the average listing price is €41.26 (sweet spot $15–$100). The average incumbent carries 2,211 reviews — the moat a new listing must climb.

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weight gainer

Market data

Competition

Demand & seasonality

Product shelf

Top sellers

Newest

Trending

Reviews

What buyers love

What buyers complain about

Top return reasons

Common questions

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