protein bars
Launch itA $2.9M/yr market growing +3.9% this quarter with returns at 0.1% — clears our launch bar.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Market size
Incredible£2.9M£2.9M/yr · 4.5M searches
Competition
Good43%top-5 click share — leaders hold, buyers still browse
Avg price
Good£13.99avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.6%search→purchase rate — share of searches ending in a sale
Review moat
Okay1,651.79avg incumbent reviews — the moat a new listing must climb
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Price range
Okay£2.33–£22.38cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+3.9%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, protein bars is a £2.9M/yr Amazon United Kingdom market (4.5M searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Feb. Verdict: Launch it — 62/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
protein bars market data
- Units sold / yr
- 250K–300K
- avg 6,000–8,000/product
- Revenue / yr
- £3.5M–£4.2M
- units × avg price
- Conversion rate
- 4.6%
- Avg BSR
- #14
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 60%
- Out of stock
- 1.9%
- Avg brand age
- 55 months
- Avg seller age
- 160 days
Competition & brand share
The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
163
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
43%
Top 20: 80%
Open market
14%
- Grenade44%
- Warrior23%
- Nature Valley8%
- Yubi Bar5%
- Nakd4%
- Chiefs3%
- Open — no brand owns it (8 brands, 14%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +3.9% search growth over the last 90 days.Peak months: Feb · busiest ÷ quietest = 1.6×
Top protein bars search terms
- protein bars1.9M/yr
- nutrition bars & drinks676K/yr
- grenade protein bars646K/yr
- protein snacks280K/yr
- protein bar265K/yr
- grenade114K/yr
- high protein snacks92K/yr
- warrior protein bar79K/yr
- grenade bars76K/yr
- protein bars 24 pack47K/yr
Top protein bars 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Warrior RAW Protein Bars 12 x 75g 20g High Protein Bar Low Sugar High Fibre Oat Protein Flapjack Protein Snacks Meal Replacement Bars (Chocolate Brownie)
Warrior£9.313.9★2,138 rev
Grenade High Protein Low Sugar Bar - Chocolate Chip Salted Caramel 12 x 60 g
Grenade£16.114.6★3,992 rev
Grenade OREO White - High Protein Low Sugar Bars 12 x 60 g
Grenade£14.134.5★1,993 rev
Nature Valley Protein Peanut & Chocolate Gluten Free Cereal Bars 26 x 40g
Nature Valley£10.824.7★4,513 rev
Grenade Limited Edition Creme Egg Flavour Soft Core Protein Bar - High Protein Low Sugar 18 x 45 g
Grenade£18.054.4★304 rev
Newest
by launch dateGrenade Limited Edition Creme Egg Flavour Soft Core Protein Bar - High Protein Low Sugar 18 x 45 g
Grenade£18.05304 rev
Snickers - High Protein Bars | Low Sugar Only 2g of Sugar per bar Hazelnut and Milk Chocolate Flavour 12 x 57g Box 20g Protein
Snickers£16.98160 rev
Snickers HiProtein Bars Dark Chocolate 20g Protein Only 1g Sugar 12×57g Multipack Low Sugar High Protein Snack
Snickers£17.86200 rev
CHIEFS Protein Bars 55g - High Protein Low Sugar - Healthy Snack Bars with 20g protein - Salty Caramel Taste - 12x55g
Chiefs£14.72156 rev
Grenade OREO White - High Protein Low Sugar Bars 12 x 60 g
Grenade£14.131,993 rev
Trending
90-day click momentumCHIEFS Protein Bars 55g - High Protein Low Sugar - Healthy Snack Bars with 20g protein - Salty Caramel Taste - 12x55g
Chiefs£14.724.7★
Grenade Selection Box - High Protein Low Sugar Bars 12 x 60 g Variety Pack (Packaging & Flavours May Vary)
Grenade£16.304.6★
Warrior RAW Protein Bars 12 x 75g 20g High Protein Bar Low Sugar High Fibre Oat Protein Flapjack Protein Snacks Meal Replacement Bars (Chocolate Brownie)
Warrior£9.313.9★
Grenade Limited Edition Creme Egg Flavour Soft Core Protein Bar - High Protein Low Sugar 18 x 45 g
Grenade£18.054.4★
Warrior RAW Protein Bars 12 x 75g 20g High Protein Bar Low Sugar High Fibre Oat Protein Flapjack Protein Snacks Meal Replacement Bars (Salted Caramel)
Warrior£9.554.0★
What buyers say about protein bars
What buyers praise and complain about, mined from review topics.What buyers love
“Absolutely delicious”
“Nice amount of protein content”
“Good for the price”
“Great flavour”
“the quality has been consistent with every order”
“Lovely texture”
“I quite like these—they really satisfy my sweet tooth”
“not too chewy”
“good and fit for purpose”
“As advertised”
What buyers complain about
“Chemical taste”
“Bit dry”
“Disgusting, flavour was horrible”
“Too expensive”
“There is less protein than typical bars”
“Disgustingly over-sweetened”
“texture is off”
“Not as described”
“it's a struggle to swallow it”
“Tastes artificial an nothing like chocolate”
Top return reasons
Common questions
- Is protein bars profitable to sell on Amazon United Kingdom?
- The niche generates £2.9M/yr across 43 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is +3.9%. Flapen's verdict: Launch it (62/100).
- How competitive is the protein bars niche?
- 14 brands and 163 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in protein bars?
- Top complaints mined from reviews: Taste-Overall, Moist/Dry, Flavor. The return rate is 0.1%.
- When does demand for protein bars peak?
- Demand peaks in Feb; the busiest month runs 1.6× the quietest.
- What does it cost to enter the protein bars niche?
- Listings span £2.33–£22.38; the average listing price is £13.99 (sweet spot $15–$100). The average incumbent carries 1,652 reviews — the moat a new listing must climb.