Skip to content
32

protein fiber

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 11Growth 22Conversion 42Competition 4Returns 100Price range 56Avg price 84Brand share 0Review moat 24Quality gap 42

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$18.45

avg listing price — sweet spot $15–$100

Price range

Good$5.52–$27.06

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

Conversion

Okay3.4%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Bad5,697.43

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-5.8%

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

Market size

Bad$44K

$44K/yr · 71K searches

Competition

Bad95%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, protein fiber is a $44K/yr Amazon United States market (71K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 32/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

protein fiber market data

Units sold / yr
3K–4K
avg 750–1,000/product
Revenue / yr
$55K–$74K
units × avg price
Conversion rate
3.4%
Avg BSR
#34
Page quality
0%
Prime
100%
Sponsored
71%
Out of stock
0.0%
Avg brand age
74 months
Avg seller age
134 days

Competition & brand share

The top 5 products capture 95% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

571

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

95%

Top 20: 100%

Open market

0%

  • Premier Protein85%
  • Manitoba Harvest9%
  • Kashi4%
  • Carnation Breakfast Essentials3%

Demand

Weekly Amazon search volume, last 27 weeks — -5.8% search growth over the last 90 days.
2K2KSpike '26Jan '26Feb '26Mar '26Mar '26Apr '26May '26Jun '26

Top protein fiber search terms

  • protein fiber12K/yr
  • protein and fiber9K/yr
  • premier protein plus fiber11K/yr
  • fiber protein6K/yr
  • fiber and protein5K/yr
  • high fiber protein5K/yr
  • premier protein powder with fiber5K/yr
  • premier protein fiber5K/yr
  • premier protein with fiber6K/yr
  • premier protein powder plus fiber5K/yr
All search terms

Top protein fiber 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.

0%15%$7K30%$13K45%$20K60%$27K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

What buyers say about protein fiber

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

What buyers love

Taste-Overall33%

“very tasty drink”

Nutritional Content21%

“High protein”

Flavor8%

“Excellent flavor”

Quality-Overall6%

“Decent powder”

Value For Money4%

“Great value”

Blend/Ratio2%

“is easy to mix”

Solubility2%

“Powder mixes well”

Crispiness2%

“Stays crunchy even in milk”

Health Benefits-Overall1%

“One of the healthiest cereals that you can buy”

Ease Of Use1%

“is easy to use”

What buyers complain about

Taste-Overall18%

“Absolutely disgusting taste”

Nutritional Content7%

“Low calorie protein”

Sweetness6%

“Massively over-sweet”

Solubility6%

“Doesn't mix well”

Flavor6%

“Unflavored”

Value For Money5%

“A little expensive”

Hard Feel3%

“Super hard”

Bitter2%

“It is bitter”

Size-Overall2%

“The container is bigger than I thought”

Ease Of Chewing/Swallowing2%

“you have to be careful there are some pieces in here that I really hard to chew other than that”

Top return reasons

Flavor33%
Size-Overall17%
Value For Money17%
Soft Feel17%
Salt Content17%

Common questions

Is protein fiber profitable to sell on Amazon United States?
The niche generates $44K/yr across 7 tracked products. 90-day search growth is -5.8%. Flapen's verdict: Skip it (32/100).
How competitive is the protein fiber niche?
4 brands and 571 sellers compete. The top 5 products take 95% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in protein fiber?
Top complaints mined from reviews: Taste-Overall, Nutritional Content, Sweetness. The return rate is 0.0%.
What does it cost to enter the protein fiber niche?
Listings span $5.52–$27.06; the average listing price is $18.45 (sweet spot $15–$100). The average incumbent carries 5,697 reviews — the moat a new listing must climb.