Is fasting kit profitable to sell on Amazon United States?

The niche generates $962K/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -0.4%. Flapen's verdict: Worth a look (50/100).

How competitive is the fasting kit niche?

2 brands and 4 sellers compete. The top 5 products take 94% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in fasting kit?

Top complaints mined from reviews: Nutritional Content, Taste-Overall, Value For Money. The return rate is 0.2%.

What does it cost to enter the fasting kit niche?

Listings span $38.61–$200.94; the average listing price is $116.11 (sweet spot $15–$100). The average incumbent carries 197 reviews — the moat a new listing must climb.

fasting kit

Worth a look

Shows low returns (0.2%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Quality gap

Incredible3.9★

avg incumbent rating — lower means beatable quality

Review moat

Great196.86

avg incumbent reviews — the moat a new listing must climb

Market size

Great$962K

$962K/yr · 246K searches

Avg price

Good$116.11

avg listing price — sweet spot $15–$100

Conversion

Okay3.4%

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

Price range

Okay$38.61–$200.94

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

Growth

Bad-0.4%

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

Competition

Bad94%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals Quality Gap High Price

According to Flapen's Amazon United States niche tracking, fasting kit is a $962K/yr Amazon United States market (246K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.

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

fasting kit market data

Units sold / yr: 8K–10K; avg 1,000–1,250/product
Revenue / yr: $929K–$1.2M; units × avg price
Conversion rate: 3.4%
Avg BSR: #822
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 9.4%
Avg brand age: 54 months
Avg seller age: 161 days

Competition & brand share

The top 5 products capture 94% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 flat

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

94%

Top 20: 100%

Open market

Prolon56%
BURNBOX44%
Open — no brand owns it (0%)

Demand

Weekly Amazon search volume, last 36 weeks — -0.4% search growth over the last 90 days.

Open Trend

Top fasting kit search terms

prolon51K/yr -19.6%4.8% conv.
prolon 5 day fasting kit40K/yr -8.7%7.2% conv.
burn box24K/yr +34.4%1.7% conv.
fasting kit29K/yr -0.4%0.7% conv.
burnbox 3 day fasting kit18K/yr +49.0%3.4% conv.
burnbox14K/yr +44.4%3.1% conv.
burn box fasting kit16K/yr -26.9%2.5% conv.
prolon 3 day fasting kit7K/yr +15.0%10.7% conv.
burnbox fasting kit16K/yr -39.3%1.9% conv.
fasting kit for weight loss6K/yr -13.8%0.4% conv.

All search terms

Top fasting kit 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 7 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

BURNBOX 3 Day Fasting Kit (4X) Intermittent Fasting Drink for Women & Men - Manage Weight Boost Energy & Curb Appetite Cravings - Low-Calorie Diet Food Fasting Supplement + Frother Reusable Bottle

BURNBOX$199.583.9★84 rev

Prolon$197.754.1★192 rev

Prolon 1-Day Reset Fasting Kit | Fast with Food | Supports Healthy Aging & Weight Management | Low-Calorie Plant-Based Meals & Snacks | Developed to Not Break Your Fast (3 Pack)

Prolon$95.853.8★178 rev

Prolon$200.943.8★396 rev

BURNBOX GLP-1 Booster | Weight Management Supplement for Women & Men - GLP1 Supports Appetite Control Energy Production & Mood Balance - Vegan Gluten-Free Capsules | 60 Count

BURNBOX$41.153.8★10 rev

Newest

by launch date

BURNBOX GLP-1 Booster | Weight Management Supplement for Women & Men - GLP1 Supports Appetite Control Energy Production & Mood Balance - Vegan Gluten-Free Capsules | 60 Count

BURNBOX$41.1510 rev

4mo ago

BURNBOX 3 Day Fasting Kit (4X) Intermittent Fasting Drink for Women & Men - Manage Weight Boost Energy & Curb Appetite Cravings - Low-Calorie Diet Food Fasting Supplement + Frother Reusable Bottle

BURNBOX$199.5884 rev

1y ago

Prolon 1-Day Reset Fasting Kit | Fast with Food | Supports Healthy Aging & Weight Management | Low-Calorie Plant-Based Meals & Snacks | Developed to Not Break Your Fast (1 Pack)

Prolon$38.61178 rev

1y ago

Prolon$38.89340 rev

3y ago

Prolon$197.75192 rev

3y ago

What buyers say about fasting kit

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

What buyers love

Ease Of Use17%

“I was pleasantly surprised by how convenient”

Taste-Overall11%

“The food is delicious and scientifically formulated”

Weight Loss10%

“Lost 25 lbs first month”

Energy Level9%

“Energy booster”

Nutritional Content8%

“The food is delicious and scientifically formulated”

Regulates Digestion7%

“Using this gives my digestive tract a perfect chance to rest”

Flavor5%

“Great flavor”

Mixing/Blending4%

“It actually blends smooth”

Quality-Overall2%

“Excellent product”

Instructions/User Manual/Troubleshooting2%

“The clear instructions made the process simple to follow from day one”

What buyers complain about

Nutritional Content11%

“At 80g carbs a day this isn't even keto”

Taste-Overall11%

“Chalky taste”

Value For Money9%

“Absolute waste of money – zero results”

Flavor8%

“The flavors were all kind of chalky and bland”

Advertised Vs Actual Product7%

“Ive seen some aggressive marketing”

Side Effects7%

“Makes you sick”

Functionality-Overall5%

“Did not work for me”

Allergies5%

“Also I had an allergic reaction”

Chunk/Clump/Collection4%

“The soups were too powdery and clumpy”

Ease Of Chewing/Swallowing4%

“You just don't eat”

Top return reasons

Flavor100%

Common questions

Is fasting kit profitable to sell on Amazon United States?: The niche generates $962K/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -0.4%. Flapen's verdict: Worth a look (50/100).
How competitive is the fasting kit niche?: 2 brands and 4 sellers compete. The top 5 products take 94% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in fasting kit?: Top complaints mined from reviews: Nutritional Content, Taste-Overall, Value For Money. The return rate is 0.2%.
What does it cost to enter the fasting kit niche?: Listings span $38.61–$200.94; the average listing price is $116.11 (sweet spot $15–$100). The average incumbent carries 197 reviews — the moat a new listing must climb.