Is 21 day fix profitable to sell on Amazon United States?

The niche generates $10K/yr across 7 tracked products. 90-day search growth is -9.5%. Flapen's verdict: Skip it (33/100).

How competitive is the 21 day fix niche?

6 brands and 8 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in 21 day fix?

Top complaints mined from reviews: Instructions/User Manual/Troubleshooting, Functionality-Overall, Measurement/Reading Accuracy. The return rate is 2.0%.

When does demand for 21 day fix peak?

Demand peaks in Jan; the busiest month runs 1.9× the quietest.

What does it cost to enter the 21 day fix niche?

Listings span $9.05–$36.39; the average listing price is $15.70 (sweet spot $15–$100). The average incumbent carries 2,038 reviews — the moat a new listing must climb.

21 day fix

Skip it

A small market ($10K/yr) — this niche doesn't clear our bar today.

Price range

Great$9.05–$36.39

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

Avg price

Great$15.70

avg listing price — sweet spot $15–$100

Returns

Great2.0%

return rate — above 6% kills the launch gate

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,038

avg incumbent reviews — the moat a new listing must climb

Conversion

Okay2.7%

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

Growth

Bad-9.5%

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

Brand share

Bad94%

top-5 brand share — brand-locked demand

Competition

Bad89%

top-5 click share — a locked-up shelf

Market size

Bad$10K

$10K/yr · 24K searches

According to Flapen's Amazon United States niche tracking, 21 day fix is a $10K/yr Amazon United States market (24K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Jan. Verdict: Skip it — 33/100.

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

21 day fix market data

Units sold / yr: 750–1K; avg 0–100/product
Revenue / yr: $12K–$16K; units × avg price
Launch success: —; 0 of 0 new (360d)
Conversion rate: 2.7%
Avg BSR: #782
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 11.5%
Avg brand age: 40 months
Avg seller age: 188 days

Competition & brand share

The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

89%

Top 20: 100%

Open market

Efficient Nutrition47%
Home Spirit14%
Beachbody12%
Generic11%
Finorder10%
miaform6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.5% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.9×

Open Trend

Top 21 day fix 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

Efficient Nutrition Portion Control Containers DELUXE Kit (14-Piece) with COMPLETE GUIDE + 21 DAY PLANNER + RECIPE eBOOK BPA FREE Color Coded Meal Prep System for Diet and Weight Loss

Efficient Nutrition$11.384.4★4,568 rev

Home Spirit Proper Portions 21-Day Portion Control Containers 2 Sets Sized for Weight Loss Bariatric & Calorie-Based Meal Plans

Home Spirit$13.724.6★592 rev

Beachbody 21 Day Fix 7-Piece Kit: Color-Coded Portion Control Containers for Meal Prep and Weight Loss Ideal for Food Storage BPA-Free Reusable with Secure Locking Lids for Freshness

Beachbody$9.054.5★2,287 rev

21 Day Fixs Workout Program Accessories Kit Include Fitness 4 DVDs Home Workout Planner Video Guide Meal Plan and 30LB Rubber tensile band

Generic$36.393.8★9 rev

Finorder 21 Day Portion Control Container Kit (14-Piece) with Complete Guide BPA Free Food Portion Container Set for Meal Prep 21 Day Lose Weight System (HN-PC)

Finorder$12.044.5★1,305 rev

Newest

by launch date

21 Day Fixs Workout Program Accessories Kit Include Fitness 4 DVDs Home Workout Planner Video Guide Meal Plan and 30LB Rubber tensile band

Generic$36.399 rev

1y ago

miaform Portion Control Container and Food Plan - 21 Day Portion Control Container Kit for Weight Loss - 21 Day Tally Chart with e-Book (7 Labeled Pcs)

miaform$9.81937 rev

4y ago

Finorder 21 Day Portion Control Container Kit (14-Piece) with Complete Guide BPA Free Food Portion Container Set for Meal Prep 21 Day Lose Weight System (HN-PC)

Finorder$12.041,305 rev

4y ago

Home Spirit Proper Portions 21-Day Portion Control Containers 2 Sets Sized for Weight Loss Bariatric & Calorie-Based Meal Plans

Home Spirit$13.72592 rev

5y ago

Efficient Nutrition Portion Control Containers DELUXE Kit (28-Piece) with COMPLETE GUIDE + 21 DAY PLANNER + RECIPE eBOOK BPA FREE Color Coded Meal Prep System for Diet and Weight Loss

Efficient Nutrition$17.524,568 rev

7y ago

What buyers say about 21 day fix

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

What buyers love

Ease Of Use29%

“Easy to Use”

Value For Money17%

“Definitely worth the money”

Strength9%

“They are sturdy”

Gifting Purpose7%

“Auntie happy with her gift”

Quality-Overall7%

“They are well made”

Size-Overall5%

“Perfect size for portion control”

Color4%

“I love that the colors are cordinated”

Advertised Vs Actual Product4%

“As explained”

Measurement/Reading Accuracy4%

“Measurements are accurate”

Correct Contents2%

“Love the portions written on each container”

What buyers complain about

Instructions/User Manual/Troubleshooting27%

“for beginners this will not help for a quick reference if the writing comes off”

Functionality-Overall18%

“do not work”

Measurement/Reading Accuracy18%

“If it werent for the measurement error”

Durability9%

“Skips”

Quality-Overall9%

“Not good quality”

Advertised Vs Actual Product9%

“The product description does not make this clear”

Top return reasons

Size-Overall36%

Advertised Vs Actual Product22%

Value For Money9%

Instructions/User Manual/Troubleshooting8%

Quality-Overall7%

Functionality-Overall5%

Product Condition2%

Smell2%

Color1%

Dishwasher Safe1%

Common questions

Is 21 day fix profitable to sell on Amazon United States?: The niche generates $10K/yr across 7 tracked products. 90-day search growth is -9.5%. Flapen's verdict: Skip it (33/100).
How competitive is the 21 day fix niche?: 6 brands and 8 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in 21 day fix?: Top complaints mined from reviews: Instructions/User Manual/Troubleshooting, Functionality-Overall, Measurement/Reading Accuracy. The return rate is 2.0%.
When does demand for 21 day fix peak?: Demand peaks in Jan; the busiest month runs 1.9× the quietest.
What does it cost to enter the 21 day fix niche?: Listings span $9.05–$36.39; the average listing price is $15.70 (sweet spot $15–$100). The average incumbent carries 2,038 reviews — the moat a new listing must climb.