Weight Gainer
Weight Gainer shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Top 4% of 2,966 Drogerie & Körperpflege niches · +15 vs the category median of 49
Is Weight Gainer profitable on Amazon?
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.
Weight Gainer: 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 -9.5% over the last 90 days and 3.4% of searches end in a purchase.
€841K
revenue / yr
Who owns the niche?
The top 5 brands hold 81% of demand, so 19% of the market is open.
19%
open market share
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 · 47 products
Top Weight Gainer products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
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
- Price
- €38.56
- Rating
- 4.2/5
- Reviews
- 1,383
- Age
- 11y ago

Optimum Nutrition Serious Mass Weight Gainer Pulver Geschmack Vanille 2.73kg 8 Portionen
- Price
- €39.73
- Rating
- 4.3/5
- Reviews
- 12,550
- Age
- 16y ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Vanille 2.66kg 8 Portionen
- Price
- €41.41
- Rating
- 4.5/5
- Reviews
- 43
- Age
- 11mo ago

Optimum Nutrition Serious Mass Weight Gainer Pulver Geschmack Schokolade 5.45kg 16 Portionen
- Price
- €59.55
- Rating
- 4.3/5
- Reviews
- 15,604
- Age
- 17y ago

Weider Mega Mass 4000 - Weight Gainer Pulver mit 48g Protein & Kreatin pro Portion - Für hohe Kalorienaufnahme - 3kg - Vanille
- Price
- €43.95
- Rating
- 4.4/5
- Reviews
- 1,171
- Age
- 15y ago
Trending
90-day click momentum
Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Schokolade 5.34kg 16 Portionen
- Price
- €63.68
- Rating
- 4.2/5
- Reviews
- 36
- Age
- 11mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Vanille 5.33kg 16 Portionen
- Price
- €64.17
- Rating
- 4.8/5
- Reviews
- 17
- Age
- 11mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Vanille 2.66kg 8 Portionen
- Price
- €41.41
- Rating
- 4.5/5
- Reviews
- 43
- Age
- 11mo ago

GEN GERMAN ELITE NUTRITION Clean Weight Gainer - 3 kg
- Price
- €39.65
- Rating
- 4.5/5
- Reviews
- 81
- Age
- 8mo ago

5000 Kalorien pro Tag Mass Weight Gainer mit Whey Protein Isolat Pulver Aufbaunahrung für maximale schnelle Gewichtszunahme Muskelaufbau & Masseaufbau SAMS Ultra Hardgainer (Vanille 1050 g)
- Price
- €33.84
- Rating
- 4.0/5
- Reviews
- 63
- Age
- 5y ago
Newest
by launch date
GEN GERMAN ELITE NUTRITION Clean Weight Gainer - 3 kg
- Price
- €39.65
- Rating
- 4.5/5
- Reviews
- 81
- Age
- 8mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Vanille 2.66kg 8 Portionen
- Price
- €41.41
- Rating
- 4.5/5
- Reviews
- 43
- Age
- 11mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Schokolade 5.34kg 16 Portionen
- Price
- €63.68
- Rating
- 4.2/5
- Reviews
- 36
- Age
- 11mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Schokolade 2.66kg 8 Portionen
- Price
- €40.63
- Rating
- 4.4/5
- Reviews
- 40
- Age
- 11mo ago

Optimum Nutrition Serious Mass 2025 Weight Gainer Pulver Geschmack Vanille 5.33kg 16 Portionen
- Price
- €64.17
- Rating
- 4.8/5
- Reviews
- 17
- Age
- 11mo ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.
Brands
16 falling
Sellers
59
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%)
Weight Gainer demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.3×
Top Weight Gainer search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- mass gainer169K/yr
- weight gainer176K/yr
- serious mass34K/yr
- gainer33K/yr
- mass35K/yr
- masse shake22K/yr
- optimum nutrition serious mass17K/yr
- mass gainer protein16K/yr
- mega mass 400011K/yr
- mass protein11K/yr
What reviews say buyers love and hate about Weight Gainer
What buyers mention most, as a share of all reviews.
What buyers love
75% of reviews“schmeckt super”
“Protein”
“Habe Schokogeschmack”
“Top Produkt”
“lässt sich super cremig mixen”
What buyers complain about
50% of reviews“Preisanstieg”
“Ungenießbar”
“Geschmack unvergleichlich schlecht”
“Sehr süß und sandig im Mund”
“obwohl sie sonst keine typischen Protein- oder Weight-Gainer-Shakes mag.”
Weight Gainer return rate & reasons
Why buyers send it back, as a share of all return requests.
0.1%
Return rate
0%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Weight Gainer questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









