---
title: "Weight Gain Shakes — $4.6M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/weight-gain-shakes"
last_updated: "2026-08-10T02:56:10.962Z"
locale: en
meta:
description: "Niche score 56/100 · $4.6M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $4.6M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Weight Gain Shakes — $4.6M/yr Amazon US Niche (2026) - Flapen"
---
# **weight gain shakes**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 97Growth 24Conversion 80Competition 47Returns 100Price range 92Avg price 95Brand share 0Review moat 25Quality gap 25
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$4.6M**
$4.6M/yr · 1.5M searches
**Avg price**
**Incredible****$36.85**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$12.97–$60.09**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****8.3%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,260**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-2.1%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, weight gain shakes is a $4.6M/yr Amazon United States market (1.5M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Apr–May. Verdict: Worth a look — 56/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **weight gain shakes market data**
- **Units sold / yr**
- **125K–150K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **$4.6M–$5.5M**
- units × avg price
- **Conversion rate**
- **8.3%**
- **Avg BSR**
- **#270**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **58%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **83 months**
- **Avg seller age**
- **133 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**5 **▼falling
**Sellers**
**126**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 94%
**Open market**
**0%**
- Ensure49% - BOOST48% - Abbott1% - Naturade1% - Dymatize1% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.1% search growth over the last 90 days.
50K30KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May · busiest ÷ quietest = 5.3×
[**Open Trend **](https://flapen.com/research/us/health-household/weight-gain-shakes/trend)
## **Top weight gain shakes search terms**
- **ensure plus**513K/yr-1.3%8.3% conv. - **boost very high calorie**234K/yr-6.2%11.5% conv. - **high calorie drinks for weight gain**164K/yr-8.1%2.5% conv. - **boost high calorie**144K/yr-1.8%8.4% conv. - **ensure plus vanilla**101K/yr-9.1%9.2% conv. - **high calorie protein shake**37K/yr+24.9%2.1% conv. - **high calorie**38K/yr+2.9%0.7% conv. - **ensure plus strawberry**38K/yr-24.1%13.3% conv. - **high calorie boost**29K/yr+12.1%6.1% conv. - **ensure plus high protein**28K/yr+9.5%2.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/weight-gain-shakes/search-terms)
## **Top weight gain shakes 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%4%$184K8%$367K12%$551K16%$734K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Ensure Plus Vanilla Nutrition Shake With Fiber | Meal Replacement Shake | Ready to Drink | 16g Protein and 27 Vitamins and Minerals | 8 fl oz - 24 Pack**Ensure**$52.29**4.7★8,358 rev](https://www.amazon.com/dp/B07CW9186D) [2**BOOST Very High Calorie Nutritional Drink Helps Weight Gain & Maintenance - 530 Calories - 26 Vitamins & Minerals - 22 g Protein - Calorie-Dense Nutritional Drink - Chocolate - 8 fl oz (Pack of 24)**BOOST**$58.22**4.5★3,516 rev](https://www.amazon.com/dp/B0B1HJL9QK) [3**Ensure Plus Strawberry Nutrition Shake | Meal Replacement Shake | Ready To Drink | 16g Protein and 27 Vitamins and Minerals | 8 fl oz - 24 Pack**Ensure**$40.97**4.7★6,719 rev](https://www.amazon.com/dp/B000ARPK7G) [4**Boost Very High Calorie Very Vanilla Nutritional Drink 22g Protein 530 Nutrient Rich Calories 8 Fl Oz (Pack of 24)**BOOST**$56.96**4.6★7,758 rev](https://www.amazon.com/dp/B08ZBL16X3) [5**BOOST Very High Calorie Nutritional Drink Supports Weight Gain & Maintenance 22 g Protein Creamy Strawberry 8 fl oz (Pack of 24)**BOOST**$56.45**4.6★3,890 rev](https://www.amazon.com/dp/B07T3KYH4N)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**BOOST Very High Calorie Nutritional Drink Helps Weight Gain & Maintenance -530 Calories -26 Vitamins & Minerals - 22 g Protein - Variety Pack - Vanilla Chocolate & Strawberry - 8 fl oz (Pack of 24)**BOOST**$60.09**722 rev2y ago](https://www.amazon.com/dp/B0D67GSHXQ) [**BOOST Plus Nutritional Drink Rich Chocolate 8 fl oz (Pack of 24)**BOOST**$40.98**1,371 rev2y ago](https://www.amazon.com/dp/B089QD5R3T) [**BOOST Plus Nutritional Drink Very Vanilla 8 fl oz (Pack of 24)**BOOST**$42.21**655 rev2y ago](https://www.amazon.com/dp/B0CZVNNHWD) [**BOOST Very High Calorie Nutritional Drink Helps Weight Gain & Maintenance - 530 Calories - 26 Vitamins & Minerals - 22 g Protein - Calorie-Dense Nutritional Drink - Chocolate - 8 fl oz (Pack of 24)**BOOST**$58.22**3,516 rev4y ago](https://www.amazon.com/dp/B0B1HJL9QK) [**Boost Very High Calorie Nutritional Drink Made with Natural Flavor & No Artificial Flavors Colors & Sweeteners Chocolate 8 FL OZ (Pack of 12)**BOOST**$40.07**928 rev4y ago](https://www.amazon.com/dp/B0B5HGW23W)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ensure Plus Vanilla Nutrition Shake | Meal Replacement Shake | Ready To Drink | 16g Protein and 27 Vitamins and Minerals | 8 fl oz - 6 Pack**Ensure**$15.73**4.8★**▲ 107%**](https://www.amazon.com/dp/B00OOK1BA0) [**BOOST Plus Nutritional Drink Very Vanilla 8 fl oz (Pack of 24)**BOOST**$42.21**4.7★**▲ 43%**](https://www.amazon.com/dp/B0CZVNNHWD) [**BOOST Very High Calorie Nutritional Drink Supports Weight Gain & Maintenance 22 g Protein Creamy Strawberry 8 fl oz (Pack of 24)**BOOST**$56.45**4.6★**▲ 40%**](https://www.amazon.com/dp/B07T3KYH4N) [**Ensure Max Protein Shake | French Vanilla | Ready to Drink | 30g Protein for Muscle Health | 1g Sugar 4g Fiber | 11 fl oz 12 Pack**Ensure**$27.28**4.6★**▲ 31%**](https://www.amazon.com/dp/B07NLQ5V6L) [**Ensure Plus Butter Pecan Nutrition Shake | Meal Replacement Shake | Ready To Drink | 16g Protein and 27 Vitamins and Minerals | 8 fl oz - 24 Pack**Ensure**$50.58**4.8★**▲ 16%**](https://www.amazon.com/dp/B000ARWKZQ)
**~~View all trending →~~**
## **What buyers say about weight gain shakes**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**29%
*“Very tasty drink”*
**Nutritional Content**17%
*“Good nutrition”*
**Flavor**10%
*“Good vanilla flavor”*
**Quality-Overall**9%
*“have zero complaints”*
**Value For Money**6%
*“Best value”*
**Weight Loss**5%
*“Help maintain my weight”*
**Advertised Vs Actual Product**3%
*“As described”*
**Weight Gain**2%
*“It helps you gain weight”*
**Energy Level**1%
*“Energy boost”*
**Ease Of Use**1%
*“Easy peezy”*
### **What buyers complain about **
**Taste-Overall**22%
*“Awful tasting”*
**Value For Money**9%
*“Its expensive”*
**Flavor**6%
*“The flavor is not good”*
**Thickness**4%
*“It was thick chunky”*
**Nutritional Content**4%
*“Very high calories”*
**Leak-Proof**3%
*“The bottles leak”*
**Ease Of Use**2%
*“It's almost impossible to to open the box”*
**Sweetness**2%
*“Too sweet”*
**Weight Heavy**2%
*“It was extremely HEAVY”*
**Side Effects**2%
*“make me sick”*
### **Top return reasons **
**Taste-Overall**30%
**Advertised Vs Actual Product**13%
**Leak-Proof**13%
**Flavor**13%
**Side Effects**7%
**Sweetness**7%
**Vegan/Organic**7%
**Functionality-Overall**7%
**Thickness**3%
## **Common questions**
- **Is weight gain shakes profitable to sell on Amazon United States?**
- The niche generates $4.6M/yr across 26 tracked products. 90-day search growth is -2.1%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the weight gain shakes niche?**
- 5 brands and 126 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in weight gain shakes?**
- Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.
- **When does demand for weight gain shakes peak?**
- Demand peaks in Mar–Apr–May; the busiest month runs 5.3× the quietest.
- **What does it cost to enter the weight gain shakes niche?**
- Listings span $12.97–$60.09; the average listing price is $36.85 (sweet spot $15–$100). The average incumbent carries 4,260 reviews — the moat a new listing must climb.
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