Is best protein shakes for weight gain profitable to sell on Amazon United States?

The niche generates $265K/yr across 6 tracked products. 90-day search growth is -40.1%. Flapen's verdict: Skip it (40/100).

How competitive is the best protein shakes for weight gain niche?

5 brands and 29 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in best protein shakes for weight gain?

Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.1%.

When does demand for best protein shakes for weight gain peak?

Demand peaks in Jan–Feb–Sep–Oct; the busiest month runs 9.4× the quietest.

What does it cost to enter the best protein shakes for weight gain niche?

Listings span $23.24–$174.02; the average listing price is $59.69 (sweet spot $15–$100). The average incumbent carries 1,210 reviews — the moat a new listing must climb.

best protein shakes for weight gain

Skip it

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

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Avg price

Great$59.69

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Good1,209.5

avg incumbent reviews — the moat a new listing must climb

Price range

Good$23.24–$174.02

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

Conversion

Good4.0%

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

Market size

Okay$265K

$265K/yr · 110K searches

Growth

Bad-40.1%

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

Competition

Bad97%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United States niche tracking, best protein shakes for weight gain is a $265K/yr Amazon United States market (110K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Sep–Oct. Verdict: Skip it — 40/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

best protein shakes for weight gain market data

Units sold / yr: 6K–8K; avg 750–1,000/product
Revenue / yr: $358K–$478K; units × avg price
Conversion rate: 4.0%
Avg BSR: #236
Page quality: 0%
Prime: 100%
Sponsored: 83%
Out of stock: 14.4%
Avg brand age: 80 months
Avg seller age: 157 days

Competition & brand share

The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.

Brands

5 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

97%

Top 20: 100%

Open market

Duocal72%
NESTLE NUTRITIONAL15%
Medtrition5%
Beneprotein4%
Naturade3%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -40.1% search growth over the last 90 days.

Peak months: Jan, Feb, Sep, Oct · busiest ÷ quietest = 9.4×

Open Trend

Top best protein shakes for weight gain search terms

benecalorie65K/yr -50.8%0.6% conv.
duocal18K/yr +4.3%11.0% conv.
duocal powder7K/yr +4.8%11.3% conv.
benecalorie unflavored12K/yr -54.5%1.0% conv.
benecal4K/yr -8.1%0.4% conv.
nestle benecalorie2K/yr -63.3%0.3% conv.
benecalorie high calorie2K/yr -74.0%1.0% conv.

All search terms

Top best protein shakes for weight gain 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 6 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Duocal Nutricia High Calorie Super Soluble Powder - Support Supplement - Energy with Dual Source of Carbohydrate & Fat - Dairy-Free - Unflavored 14.1 oz (Case of 1)

Duocal$32.624.4★1,135 rev

NESTLE NUTRITIONAL RESOURCE BENEPROTEIN Instant Protein Powder Unflavored - 8 Ounce QTY:1

NESTLE NUTRITIONAL$23.984.5★321 rev

Duocal Nutricia High Calorie Super Soluble Powder - Support Supplement - Energy with Dual Source of Carbohydrate & Fat - Dairy-Free - Unflavored 14.1 oz (Case of 6)

Duocal$174.024.4★1,135 rev

Gelatein Plus Cherry: 20 grams of protein. Ideal for clear liquid diets swallowing difficulties dialysis and oncology. Great pre or post-workout snack. (12 pack)

Medtrition$39.254.2★625 rev

Beneprotein Instant Protein Powder Unflavored 0.25 Ounce Packets Pack of 75

Beneprotein$65.014.5★569 rev

Newest

by launch date

Gelatein Plus Cherry: 20 grams of protein. Ideal for clear liquid diets swallowing difficulties dialysis and oncology. Great pre or post-workout snack. (12 pack)

Medtrition$39.25625 rev

9y ago

NESTLE NUTRITIONAL RESOURCE BENEPROTEIN Instant Protein Powder Unflavored - 8 Ounce QTY:1

NESTLE NUTRITIONAL$23.98321 rev

12y ago

Duocal Nutricia High Calorie Super Soluble Powder - Support Supplement - Energy with Dual Source of Carbohydrate & Fat - Dairy-Free - Unflavored 14.1 oz (Case of 6)

Duocal$174.021,135 rev

16y ago

Beneprotein Instant Protein Powder Unflavored 0.25 Ounce Packets Pack of 75

Beneprotein$65.01569 rev

17y ago

Duocal Nutricia High Calorie Super Soluble Powder - Support Supplement - Energy with Dual Source of Carbohydrate & Fat - Dairy-Free - Unflavored 14.1 oz (Case of 1)

Duocal$32.621,135 rev

17y ago

What buyers say about best protein shakes for weight gain

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

What buyers love

Taste-Overall42%

“Tasty and smooth”

Nutritional Content14%

“Great Protein Powder Supplement”

Quality-Overall12%

“Great Product”

Flavor5%

“great flavor”

Solubility4%

“The powder dissolved easily in liquids”

Advertised Vs Actual Product3%

“It works as advertised”

Size-Overall2%

“Good size for cost”

Ease Of Chewing/Swallowing1%

“Easy to swallow”

Soft Feel1%

“Tasty and smooth”

Efficiency1%

“Really works”

What buyers complain about

Taste-Overall19%

“had an odd aftertaste”

Value For Money10%

“Too expensive for zero results”

Flavor10%

“flavors were very artificial”

Sweetness10%

“To sweet”

Nutritional Content6%

“I wish it wasnt so difficult to make truly flavorless calorie supplements”

Texture/Consistency-Overall6%

“Lumpy consistency”

Ease Of Use4%

“hard to mix”

Weight Heavy4%

“Weight on”

Functionality-Overall4%

“not effective at all”

Side Effects2%

“give me bad feelings all day”

Common questions

Is best protein shakes for weight gain profitable to sell on Amazon United States?: The niche generates $265K/yr across 6 tracked products. 90-day search growth is -40.1%. Flapen's verdict: Skip it (40/100).
How competitive is the best protein shakes for weight gain niche?: 5 brands and 29 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in best protein shakes for weight gain?: Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.1%.
When does demand for best protein shakes for weight gain peak?: Demand peaks in Jan–Feb–Sep–Oct; the busiest month runs 9.4× the quietest.
What does it cost to enter the best protein shakes for weight gain niche?: Listings span $23.24–$174.02; the average listing price is $59.69 (sweet spot $15–$100). The average incumbent carries 1,210 reviews — the moat a new listing must climb.