Is carb blocker profitable to sell on Amazon United States?

The niche generates $234K/yr across 26 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -7.1%. Flapen's verdict: Worth a look (60/100).

How competitive is the carb blocker niche?

20 brands and 48 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 69% of demand.

What do buyers complain about in carb blocker?

Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Weight Loss. The return rate is 0.0%.

When does demand for carb blocker peak?

Demand peaks in Aug; the busiest month runs 1.7× the quietest.

What does it cost to enter the carb blocker niche?

Listings span $11.22–$49.63; the average listing price is $24.16 (sweet spot $15–$100). The average incumbent carries 1,347 reviews — the moat a new listing must climb.

carb blocker

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

Incredible$24.16

avg listing price — sweet spot $15–$100

Price range

Great$11.22–$49.63

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Conversion

Good6.1%

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

Brand share

Good69%

top-5 brand share — brands hold most of the demand

Review moat

Good1,347.04

avg incumbent reviews — the moat a new listing must climb

Competition

Okay57%

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

Market size

Okay$234K

$234K/yr · 158K searches

Growth

Bad-7.1%

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

According to Flapen's Amazon United States niche tracking, carb blocker is a $234K/yr Amazon United States market (158K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Aug. Verdict: Worth a look — 60/100.

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

carb blocker market data

Units sold / yr: 10K–13K; avg 250–500/product
Revenue / yr: $242K–$302K; units × avg price
Conversion rate: 6.1%
Avg BSR: #304
Page quality: 0%
Prime: 100%
Sponsored: 54%
Out of stock: 6.7%
Avg brand age: 69 months
Avg seller age: 156 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 falling

Sellers

Top-5 brand share

69%

Top 20: 100%

Top-5 click share

57%

Top 20: 94%

Open market

26%

Irwin Naturals29%
Maximum Slim16%
Carlyle10%
Pharmaganics8%
Phytoral7%
BioGenetic Laboratories6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -7.1% search growth over the last 90 days.

Peak months: Aug · busiest ÷ quietest = 1.7×

Open Trend

Top carb blocker search terms

carb blocker78K/yr -0.8%6.2% conv.
carb blockers weight loss and fat blocker25K/yr -4.6%5.3% conv.
carb blockers9K/yr +34.9%6.1% conv.
fat and carb blocker9K/yr -42.0%4.2% conv.
carb and sugar blocker7K/yr -2.5%4.7% conv.
bloqueador de carbohidratos7K/yr -6.2%2.9% conv.
fat blocker6K/yr -6.4%2.4% conv.
carb blockers that work6K/yr +6.4%7.6% conv.
carb blocker pills6K/yr -53.6%6.0% conv.
carb control3K/yr -11.9%2.3% conv.

All search terms

Top carb blocker 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

Maximum Slim Fat & Carb Blocker Pure Kidney Bean Extract for Weight Loss and Appetite Suppressant

Maximum Slim$18.914.4★586 rev

Irwin Naturals Maximum Strength 3-in-1 Carb Blocker - Neutralize Carbohydrates Aids Digestion and Metabolism Booster - White Kidney Bean Extract + Chromium + Enzyme Blend - 150 Liquid Soft-Gels

Irwin Naturals$34.864.4★1,323 rev

Irwin Naturals Maximum Strength 3-in-1 Carb Blocker - Neutralize Carbohydrates Aids Digestion and Metabolism Booster - White Kidney Bean Extract + Chromium + Enzyme Blend - 75 Liquid Soft-Gels

Irwin Naturals$19.924.3★1,158 rev

Carlyle White Kidney Bean | 200 Count | Non-GMO & Gluten Free Extract

Carlyle$11.344.3★3,513 rev

Pharmaganics Carb & Sugar Blocker - Mega Dose of Berberine & Gymnena Supplement - Take with Meals to Reduces Digested Carbs & Weight

Pharmaganics$26.094.1★2,151 rev

Newest

by launch date

OxyEnergy Calorie Blocker 6-in-1 Natural Weight Loss Supplement for Women & Men with Garcinia Cambogia Gymnema Sylvestre & Bergamot Boosts Metabolism Suppresses Fat Synthesis & Appetite 30 Capsules

OxyEnergy$19.2851 rev

3mo ago

DIPO White Kidney Bean Extract Carb Blocker 1200mg per Serving for Metabolism Boost & Ease Calories from Starchy Food - White Kidney Beans Supplement Carb Control Supplements - 60 Vegan Capsules

DIPO HEALTH HARMONY$19.9512 rev

7mo ago

GLP-1 Support Gummies Sugar-Free Appetite & Craving Control Supplement with Berberine Cinnamon Turmeric Garcinia & Raspberry Ketones Digestion Weight Loss Carb Blocker Vegan Keto

Purify Life$24.41823 rev

9mo ago

Ananda Wellness GLP-1 Carb Blocker Gummies White Mulberry Leaf Extract + Saffron Pre-Meal Gummies for Lower Carb Absorption & Minimal Bloating Orange Flavor 30 Count

Ananda Wellness$25.2639 rev

1y ago

Juvenon SucraLow Advanced Carb Blocker Supports Blood Sugar Reduces Carb & Starch Absorption Aids Metabolism & Limits Fat Storage Mealtime Supplement for High-Carb Meals (30 Capsules)

Juvenon$40.5944 rev

3y ago

What buyers say about carb blocker

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

What buyers love

Taste-Overall17%

“It tastes amazing”

Weight Loss13%

“Help with weight loss”

Quality-Overall7%

“GOOD PRODUCT FOR FOR THE BODY”

Ease Of Use6%

“Easy to use”

Nutritional Content5%

“Great supplement”

Flavor5%

“Good flavor”

Regulates Digestion5%

“I do not feel anything - no bloatness nor GI problems so far”

Value For Money4%

“Great value for the money”

Ingredients-Overall3%

“made with clean ingredients”

Acid Regulator/Stomach Ache Relief3%

“No upset stomach”

What buyers complain about

Functionality-Overall24%

“Not effective”

Taste-Overall15%

“The taste is not so appealing”

Weight Loss10%

“she said it will not work for weight loss”

Value For Money5%

“Expensive”

Nutritional Content5%

“Didn't help at all with hunger”

Dosage3%

“kind of expensive for so little pills”

Smell2%

“Smells and tastes rancid”

Advertised Vs Actual Product2%

“FAKE ADVERTISEMENT”

Sweetness2%

“When I feel like that it makes me eat a lot of sweet stuff just because”

Side Effects2%

“after a couple of days felt sick to my stomach”

Top return reasons

Taste-Overall38%

Functionality-Overall25%