All in One Protein Powder
All in One Protein Powder shows low returns (0.1%), but soft demand (-13.3% this quarter) keeps it on the watch list.
Flapen Score
Is All in One Protein Powder profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, All in One Protein Powder is a £639K/yr Amazon United Kingdom market (777K searches/yr). The top 5 brands hold 93% of demand. Verdict: Worth a look — 53/100.
All in One Protein Powder: 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 -13.3% over the last 90 days and 2.9% of searches end in a purchase.
£639K
revenue / yr
Who owns the niche?
The top 5 brands hold 93% of demand, so 7% of the market is open.
7%
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 · 24 products
Top All in One Protein Powder 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
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins Creatine and Glutamine Vanilla 8 Servings 2.73 kg Packaging May Vary
- Price
- £28.01
- Rating
- 4.5/5
- Reviews
- 12,618
- Age
- 15y ago

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins Creatine and Glutamine Chocolate 8 Servings 2.73 kg Packaging May Vary
- Price
- £25.73
- Rating
- 4.4/5
- Reviews
- 18,494
- Age
- 17y ago

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins Creatine and Glutamine Chocolate 16 Servings 5.45 kg
- Price
- £44.25
- Rating
- 4.5/5
- Reviews
- 15,456
- Age
- 19y ago

Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving 60g Protein Creatine - High Calorie Post Workout or Before Bed Protein Shake (Chocolate Perfection 2 kg)
- Price
- £20.32
- Rating
- 4.1/5
- Reviews
- 656
- Age
- 10y ago

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins Creatine and Glutamine Banana 16 Servings 5.45 kg Packaging May Vary
- Price
- £42.75
- Rating
- 4.5/5
- Reviews
- 3,231
- Age
- 16y ago
Trending
90-day click momentum
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins Creatine and Glutamine Cookies and Cream 16 Servings 5.45 kg Packaging May Vary
- Price
- £43.51
- Rating
- 4.4/5
- Reviews
- 1,037
- Age
- 9y ago

The Bulk Protein Company SERIOUS GAINZ - Whey Protein Powder - Weight Gain Mass Gainer - 30g Protein Powders (Vanilla 5kg)
- Price
- £27.99
- Rating
- 4.0/5
- Reviews
- 1,220
- Age
- 10y ago

Bulk Complete Mass Gainer Chocolate 81g Carbohydrates
- Price
- £22.97
- Rating
- 4.2/5
- Reviews
- 245
- Age
- 12y ago

USN Muscle Fuel Anabolic All-In-One Muscle Mass Gainer Strawberry Flavour - 2kg 54g Protein Powder 5g Creatine Powder & 5g BCAA Powder For Maximum Muscle Growth Post Workout Recovery Drink Mix
- Price
- £24.77
- Rating
- 4.5/5
- Reviews
- 568
- Age
- 5y ago

USN Hyperbolic All in One Mass (6000g) Dutch Chocolate - Weight Gainer - with Creatine
- Price
- £38.28
- Rating
- 4.1/5
- Reviews
- 326
- Age
- 7y ago
Newest
by launch date
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins Creatine Monohydrate and Glutamine Vanilla 4 Servings 1.34kg Packaging May Vary
- Price
- £19.33
- Rating
- 4.5/5
- Reviews
- 12,618
- Age
- 1y ago

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins Creatine and Glutamine Chocolate 4 Servings 1.34 kg Packaging May Vary
- Price
- £18.77
- Rating
- 4.2/5
- Reviews
- 32
- Age
- 1y ago

Applied Nutrition Critical Mass Professional - Weight Gain Protein Powder High Calorie Weight Gainer Lean Mass (2.4kg - 16 Servings) (Chocolate)
- Price
- £24.55
- Rating
- 4.3/5
- Reviews
- 67
- Age
- 2y ago

MUTANT Mass Extreme 2500 | High-Calorie Weight Gainer | Complex Carbs BCAAs & Glutamine | Hardcore Muscle Mass Shake | 2720g | Vanilla Ice Cream
- Price
- £27.41
- Rating
- 4.2/5
- Reviews
- 1,425
- Age
- 4y ago

USN Muscle Fuel Anabolic All-In-One Muscle Mass Gainer Strawberry Flavour - 2kg 54g Protein Powder 5g Creatine Powder & 5g BCAA Powder For Maximum Muscle Growth Post Workout Recovery Drink Mix
- Price
- £24.77
- Rating
- 4.5/5
- Reviews
- 568
- Age
- 5y ago
Competition: brands, sellers & click share
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
Brands
9 falling
Sellers
51
Top-5 brand share
93%
Top 20: 100%
Top-5 click share
55%
Top 20: 94%
Open market
5%
- Optimum Nutrition64%
- The Bulk Protein Company9%
- Reflex Nutrition9%
- USN5%
- Mutant5%
- Applied Nutrition2%
- Open — no brand owns it (3 brands, 5%)
All in One Protein Powder demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.3×
Top All in One Protein Powder search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- mass gainer273K/yr
- serious mass85K/yr
- weight gainer76K/yr
- mass gainer protein powder60K/yr
- weight gain41K/yr
- optimum nutrition serious mass24K/yr
- whey protein powder 5kg21K/yr
- protein powder 5kg29K/yr
- mass26K/yr
- weight gain protein powder23K/yr
What reviews say buyers love and hate about All in One Protein Powder
What buyers mention most, as a share of all reviews.
What buyers love
78% of reviews“Taste great mixes well”
“Good product as described”
“Good value”
“Really good protein powder”
“Great taste nice flavour”
What buyers complain about
62% of reviews“very chalky powdery taste”
“It's not protein”
“OVERPRICED”
“The taste of the dutch chocolate flavour shakes are extremely unpleasant”
“really bad texture”
Common All in One Protein Powder 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.









