Is fiber probiotic profitable to sell on Amazon United States?

The niche generates $89K/yr across 36 tracked products. 6 of 7 products launched in the last 360 days are still selling. 90-day search growth is -5.5%. Flapen's verdict: Worth a look (56/100).

How competitive is the fiber probiotic niche?

23 brands and 644 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 51% of demand.

What do buyers complain about in fiber probiotic?

Top complaints mined from reviews: Functionality-Overall, Value For Money, Taste-Overall. The return rate is 0.0%.

When does demand for fiber probiotic peak?

Demand peaks in Jul; the busiest month runs 2.1× the quietest.

What does it cost to enter the fiber probiotic niche?

Listings span $6.53–$57.15; the average listing price is $19.89 (sweet spot $15–$100). The average incumbent carries 8,999 reviews — the moat a new listing must climb.

fiber probiotic

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$19.89

avg listing price — sweet spot $15–$100

Brand share

Great51%

top-5 brand share — no brand owns this niche

Price range

Great$6.53–$57.15

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

Competition

Good42%

top-5 click share — leaders hold, buyers still browse

Conversion

Good5.4%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad$89K

$89K/yr · 83K searches

Growth

Bad-5.5%

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

Review moat

Bad8,999.25

avg incumbent reviews — the moat a new listing must climb

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, fiber probiotic is a $89K/yr Amazon United States market (83K searches/yr). The top 5 brands hold 51% of demand. Demand peaks in Jul. Verdict: Worth a look — 56/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

fiber probiotic market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $80K–$99K; units × avg price
Conversion rate: 5.4%
Avg BSR: #115
Page quality: 0%
Prime: 100%
Sponsored: 97%
Out of stock: 0.8%
Avg brand age: 66 months
Avg seller age: 149 days

Competition & brand share

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

23 falling

Sellers

644

Top-5 brand share

51%

Top 20: 98%

Top-5 click share

42%

Top 20: 81%

Open market

43%

Nature Made16%
Metamucil12%
Benefiber9%
Physician's CHOICE7%
GOBIOTIX7%
NATURE TARGET6%

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — -5.5% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 2.1×

Open Trend

Top fiber probiotic search terms

probiotic fiber26K/yr +8.2%3.8% conv.
fiber probiotic16K/yr -10.8%4.2% conv.
fiber and probiotic11K/yr -16.1%3.8% conv.
fiber with probiotics8K/yr +34.1%2.2% conv.
fiber and probiotic supplement10K/yr -9.2%3.4% conv.
probiotic and fiber6K/yr -20.8%6.7% conv.
probiotic fiber supplement4K/yr -39.5%3.3% conv.
fiber probiotic supplement3K/yr -44.5%3.1% conv.

All search terms

Top fiber probiotic 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.

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

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nature Made Probiotic + Prebiotic Fiber Gummies for Daily Gut Health Fiber Supplement 50 Gummies

Nature Made$16.394.5★1,695 rev

Metamucil Fiber Gummies for Adults with Probiotics for Bloating Relief No Sugar Added Strawberry Kiwi BlackBerry Flavors 5g Prebiotic Plant Based Fiber Supplement Blend 90 Count

Metamucil$31.574.7★3,452 rev

GOBIOTIX Fiber Supplement Powder with Prebiotics for Digestive Health and GLP-1 Support Soluble Fiber for Gut Health & Debloat Keto Vegan Gluten & Sugar Free 35 Servings (1 Pack)

GOBIOTIX$27.854.4★12,411 rev

NATURE TARGET Prebiotic Fiber Supplement with 60 Billion Probiotics for Digestive Health - Prebiotics and Probiotics for Women & Men Regularity Supports Occasional Constipation - 120 Veggie Capsules

NATURE TARGET$15.714.4★172 rev

Amazon Brand - Solimo Prebiotic & Probiotic Gummies 2 Billion CFU Blue Raspberry 50 Count (2 per Serving)

Amazon Basics$8.724.5★17,701 rev

Newest

by launch date

Physicians CHOICE Fiber Gummies for GLP-1 Support - No Sugar Added & Vegan - Raspberry Lemon - Natural Chicory Root Prebiotic Fiber Gummy - Digestive Health & Regularity for Women & Men - 60CT

Physician's CHOICE$15.351,700 rev

8mo ago

Totaria 5-in-1 Probiotic Prebiotic & Postbiotic for Women Men 60 Billion CFU 24 Strains w/Digestive Enzymes Prebiotic Fiber Slippery Elm Daily Complete Immune Gut Health 120 Day Supply

Totaria$20.81832 rev

8mo ago

Physicians CHOICE Easy Mix Fiber for GLP-1 Support - No Grit & Sugar Free - Daily Prebiotic Soluble Fiber Powder Supplement - Digestive Health & Regularity - for Women and Men - Unflavored - 7.1oz

Physician's CHOICE$21.531,689 rev

9mo ago

6-in-1 Daily Prebiotic Fiber Powder for Gut & Digestive Health GLP-1 Friendly Sugar Free Fiber Supplement Powder with Probiotics Collagen Peptides & Electrolytes - For Women & Men - 7.8 OZ

Venture Pal$19.56301 rev

9mo ago

9-in-1 Probiotic Prebiotic Fiber Gummies for Adults & Teens Fiber Supplement Pro with 5 Billion CFU Bacillus Coagulans Psyllium Husk FOS Inulin ACV for Digestion & Gut 60 Vegan Pineapple Gummies

Totaria$17.98171 rev

11mo ago

What buyers say about fiber probiotic

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

What buyers love

Taste-Overall13%

“no nasty taste”

Quality-Overall12%

“Very Good product and Amazing results”

Regulates Digestion10%

“Easy to digest”

Nutritional Content9%

“The best probiotic”

Efficiency7%

“Works smoothly”

Value For Money5%

“Less expensive”

Advertised Vs Actual Product4%

“Exactly as advertised”

Acid Regulator/Stomach Ache Relief4%

“helps with digestion”

Ease Of Use3%

“Easy to Take”

Solubility3%

“Dissolves easily”

What buyers complain about

Functionality-Overall12%

“Didn't work on me”

Value For Money9%

“Really expensive”

Taste-Overall8%

“Tastes fake”

Regulates Digestion7%

“Causes constipation”

Acid Regulator/Stomach Ache Relief6%

“Made me very bloated”

Side Effects3%

“Made me very bloated”

Dosage3%

“The recommended dosage was way too much for me”

Nutritional Content2%

“I cant believe I didnt double check the nutrition label”

Flavor2%

“There is no real flavor to it so you don't have to worry about not liking the taste”

Ease Of Chewing/Swallowing2%

“Hard to swallow”

Top return reasons

Functionality-Overall23%

Value For Money13%

Acid Regulator/Stomach Ache Relief6%

Ingredients-Overall6%

Side Effects6%

Taste-Overall5%

Solubility4%

Regulates Digestion4%

Certifications3%

Advertised Vs Actual Product3%

Common questions

Is fiber probiotic profitable to sell on Amazon United States?: The niche generates $89K/yr across 36 tracked products. 6 of 7 products launched in the last 360 days are still selling. 90-day search growth is -5.5%. Flapen's verdict: Worth a look (56/100).
How competitive is the fiber probiotic niche?: 23 brands and 644 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 51% of demand.
What do buyers complain about in fiber probiotic?: Top complaints mined from reviews: Functionality-Overall, Value For Money, Taste-Overall. The return rate is 0.0%.
When does demand for fiber probiotic peak?: Demand peaks in Jul; the busiest month runs 2.1× the quietest.
What does it cost to enter the fiber probiotic niche?: Listings span $6.53–$57.15; the average listing price is $19.89 (sweet spot $15–$100). The average incumbent carries 8,999 reviews — the moat a new listing must climb.