---
title: "Best Protein Shakes for Weight Gain — $265K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/baby-products/best-protein-shakes-for-weight-gain"
last_updated: "2026-08-09T06:31:13.845Z"
locale: en
meta:
description: "Niche score 40/100 · $265K/yr market · 110K searches/yr · $59.69 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $265K/yr market · 110K searches/yr · $59.69 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Best Protein Shakes for Weight Gain — $265K/yr Amazon US Niche (2026) - Flapen"
---
# **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.
Market size 49Growth 5Conversion 50Competition 3Returns 100Price range 51Avg price 90Brand share 0Review moat 57Quality gap 63
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$59.69**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,209.5**
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**
**Good****4.0%**
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**
**Bad****97%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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**
**29**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**97%**
Top 20: 100%
**Open market**
**0%**
- 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.
18K13KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Sep, Oct · busiest ÷ quietest = 9.4×
[**Open Trend **](https://flapen.com/research/us/baby-products/best-protein-shakes-for-weight-gain/trend)
## **Top best protein shakes for weight gain search terms**
- **benecalorie**65K/yr-50.8%0.6% conv. - **duocal**18K/yr+4.3%11.0% conv. - **duocal powder**7K/yr+4.8%11.3% conv. - **benecalorie unflavored**12K/yr-54.5%1.0% conv. - **benecal**4K/yr-8.1%0.4% conv. - **nestle benecalorie**2K/yr-63.3%0.3% conv. - **benecalorie high calorie**2K/yr-74.0%1.0% conv. [**All search terms **](https://flapen.com/research/us/baby-products/best-protein-shakes-for-weight-gain/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.
0%20%$53K40%$106K60%$159K80%$212K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**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**$32.62**4.4★1,135 rev](https://www.amazon.com/dp/B0057Z4VH6) [2**NESTLE NUTRITIONAL RESOURCE BENEPROTEIN Instant Protein Powder Unflavored - 8 Ounce QTY:1**NESTLE NUTRITIONAL**$23.98**4.5★321 rev](https://www.amazon.com/dp/B001K1G6DI) [3**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**$174.02**4.4★1,135 rev](https://www.amazon.com/dp/B00AES46E4) [4**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**$39.25**4.2★625 rev](https://www.amazon.com/dp/B071L9GHLT) [5**Beneprotein Instant Protein Powder Unflavored 0.25 Ounce Packets Pack of 75**Beneprotein**$65.01**4.5★569 rev](https://www.amazon.com/dp/B001W6RHQ6)
**~~View all top sellers →~~**
### **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**$39.25**625 rev9y ago](https://www.amazon.com/dp/B071L9GHLT) [**NESTLE NUTRITIONAL RESOURCE BENEPROTEIN Instant Protein Powder Unflavored - 8 Ounce QTY:1**NESTLE NUTRITIONAL**$23.98**321 rev12y ago](https://www.amazon.com/dp/B001K1G6DI) [**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**$174.02**1,135 rev16y ago](https://www.amazon.com/dp/B00AES46E4) [**Beneprotein Instant Protein Powder Unflavored 0.25 Ounce Packets Pack of 75**Beneprotein**$65.01**569 rev17y ago](https://www.amazon.com/dp/B001W6RHQ6) [**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**$32.62**1,135 rev17y ago](https://www.amazon.com/dp/B0057Z4VH6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$174.02**4.4★**▲ 39%**](https://www.amazon.com/dp/B00AES46E4) [**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**$32.62**4.4★**— 3%**](https://www.amazon.com/dp/B0057Z4VH6) [**NESTLE NUTRITIONAL RESOURCE BENEPROTEIN Instant Protein Powder Unflavored - 8 Ounce QTY:1**NESTLE NUTRITIONAL**$23.98**4.5★**— 5%**](https://www.amazon.com/dp/B001K1G6DI) [**Naturade Weight Gain Nutrition Drink Mix for Healthy Weight Support Balanced Calories with Protein Vitamins & Minerals Vanilla - 20.3 oz**Naturade**$23.24**4.2★**— 7%**](https://www.amazon.com/dp/B00024CQ74) [**Beneprotein Instant Protein Powder Unflavored 0.25 Ounce Packets Pack of 75**Beneprotein**$65.01**4.5★**— 8%**](https://www.amazon.com/dp/B001W6RHQ6)
**~~View all trending →~~**
## **What buyers say about best protein shakes for weight gain**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**42%
*“Tasty and smooth”*
**Nutritional Content**14%
*“Great Protein Powder Supplement”*
**Quality-Overall**12%
*“Great Product”*
**Flavor**5%
*“great flavor”*
**Solubility**4%
*“The powder dissolved easily in liquids”*
**Advertised Vs Actual Product**3%
*“It works as advertised”*
**Size-Overall**2%
*“Good size for cost”*
**Ease Of Chewing/Swallowing**1%
*“Easy to swallow”*
**Soft Feel**1%
*“Tasty and smooth”*
**Efficiency**1%
*“Really works”*
### **What buyers complain about **
**Taste-Overall**19%
*“had an odd aftertaste”*
**Value For Money**10%
*“Too expensive for zero results”*
**Flavor**10%
*“flavors were very artificial”*
**Sweetness**10%
*“To sweet”*
**Nutritional Content**6%
*“I wish it wasnt so difficult to make truly flavorless calorie supplements”*
**Texture/Consistency-Overall**6%
*“Lumpy consistency”*
**Ease Of Use**4%
*“hard to mix”*
**Weight Heavy**4%
*“Weight on”*
**Functionality-Overall**4%
*“not effective at all”*
**Side Effects**2%
*“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.
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