---
title: "Antacid — $784K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/antacid"
last_updated: "2026-08-06T01:00:28.372Z"
locale: en
meta:
description: "Niche score 49/100 · $784K/yr market · 428K searches/yr · $10.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $784K/yr market · 428K searches/yr · $10.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Antacid — $784K/yr Amazon US Niche (2026) - Flapen"
---
# **antacid**
**Skip it**
Brand-locked demand (top 5 brands take 93% of clicks) — this niche doesn't clear our bar today.
Market size 72Growth 23Conversion 99Competition 35Returns 100Price range 57Avg price 34Brand share 17Review moat 24Quality gap 18
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****18.2%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$784K**
$784K/yr · 428K searches
**Price range**
**Good****$5.18–$28.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Okay****$10.05**
avg listing price — sweet spot $15–$100
**Review moat**
**Bad****5,019.89**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-4.6%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, antacid is a $784K/yr Amazon United States market (428K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 49/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **antacid market data**
- **Units sold / yr**
- **80K–100K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$804K–$1.0M**
- units × avg price
- **Conversion rate**
- **18.2%**
- **Avg BSR**
- **#69**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **68%**
- **Out of stock**
- **4.3%**
- **Avg brand age**
- **100 months**
- **Avg seller age**
- **147 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**8 **▼falling
**Sellers**
**115**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**3%**
- Amazon Basic Care35% - TUMS26% - berkley jensen15% - MAJOR13% - RUGBY LABORATORIES5% - KIRKLAND3% - Open — no brand owns it (2 brands, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -4.6% search growth over the last 90 days.
100K60KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Aug · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/health-household/antacid/trend)
## **Top antacid search terms**
- **antacid tablets chewable**247K/yr-8.8%17.2% conv. - **antacids chewable extra strength**54K/yr+8.8%17.1% conv. - **chewable antacid**26K/yr-0.0%12.3% conv. - **antacids chewable**19K/yr-1.7%10.7% conv. - **anti acid relief chewable**12K/yr+17.3%13.4% conv. - **antacid chewable tablets**17K/yr-1.3%9.9% conv. - **chewable antacids**7K/yr+27.8%5.9% conv. - **antacid chewable**9K/yr-8.7%11.6% conv. - **generic tums**4K/yr+19.9%14.0% conv. - **calcium carbonate chewable**8K/yr-37.4%4.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/antacid/search-terms)
## **Top antacid 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%10%$78K20%$157K30%$235K40%$314K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Amazon Basic Care Chewy Bites Chewable Antacid Tablets Ultra Strength Heartburn Relief Acid Indigestion Upset & Sour Stomach Fast-Acting Assorted Fruit Flavors 90 Count**Amazon Basic Care**$8.97**4.6★5,809 rev](https://www.amazon.com/dp/B094WDVB18) [2**Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count**berkley jensen**$9.96**4.7★1,381 rev](https://www.amazon.com/dp/B0GJN28LBP) [3**TUMS Ultra Strength Chewable Antacid Tablets for Heartburn Relief and Acid Indigestion Relief Assorted Berries - 160 Count**TUMS**$9.85**4.8★7,542 rev](https://www.amazon.com/dp/B001IAPXSA) [4**MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)**MAJOR**$10.01**4.6★881 rev](https://www.amazon.com/dp/B01M07E78O) [5**Amazon Basic Care Heartburn & Gas SuperChews Chewable Tablets Fast-Acting Relief Mixed Berry 82 Count (Previously SoundHealth)**Amazon Basic Care**$8.17**4.6★6,709 rev](https://www.amazon.com/dp/B095CN18CZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count**TUMS**$14.70**173 rev2mo ago](https://www.amazon.com/dp/B0GTVZ475B) [**Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count**berkley jensen**$9.96**1,381 rev5mo ago](https://www.amazon.com/dp/B0GJN28LBP) [**Quality Choice Ultra Strength Antacid Tablets Heartburn and Acid Indigestion Relief Calcium Carbonate 1000 mg Berry Flavored Chewable Tablets 72 Count**Quality Choice**$7.66**779 rev3y ago](https://www.amazon.com/dp/B0C3SFZ5K8) [**TUMS Chewy Bites Chewable Antacid Tablets for Ultra Strength Heartburn Relief Mixed Fruit - 200 Count**TUMS**$28.12**4,819 rev3y ago](https://www.amazon.com/dp/B0B82S3ZG6) [**Amazon Basic Care Heartburn & Gas SuperChews Chewable Tablets Fast-Acting Relief Mixed Berry 82 Count (Previously SoundHealth)**Amazon Basic Care**$8.17**6,709 rev4y ago](https://www.amazon.com/dp/B095CN18CZ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count**TUMS**$14.70**4.8★**▲ 252%**](https://www.amazon.com/dp/B0GTVZ475B) [**Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count**berkley jensen**$9.96**4.7★**▲ 216%**](https://www.amazon.com/dp/B0GJN28LBP) [**Major Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (1 Pack)**MAJOR**$6.64**4.6★**▲ 52%**](https://www.amazon.com/dp/B00SW0HRRE) [**MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)**MAJOR**$10.01**4.6★**▲ 25%**](https://www.amazon.com/dp/B01M07E78O) [**Rolaids Ultra Strength Antacid Chewable Tablets Mint 72-Count**Rolaids**$8.83**4.8★**▲ 20%**](https://www.amazon.com/dp/B00E6ALET6)
**~~View all trending →~~**
## **What buyers say about antacid**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**20%
*“Taste smooth”*
**Value For Money**13%
*“Best value”*
**Heart Health**7%
*“It helps heart burn”*
**Efficiency**7%
*“Seemed to work in a satisfactory manner”*
**Quality-Overall**7%
*“Excellent product”*
**Flavor**6%
*“Best flavor”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Acid Regulator/Stomach Ache Relief**5%
*“Helps with my acid reflux”*
**Ease Of Chewing/Swallowing**5%
*“Best tasting chewable”*
**Regulates Digestion**2%
*“Easy to digest”*
### **What buyers complain about **
**Taste-Overall**13%
*“Bad aftertaste”*
**Ease Of Chewing/Swallowing**9%
*“Not initially chewable”*
**Hard Feel**7%
*“Hard As Rocks”*
**Value For Money**6%
*“Not worth the price”*
**Flavor**4%
*“Horrible flavor yuck”*
**Functionality-Overall**4%
*“Didn't work for me”*
**Size-Overall**3%
*“Smaller than expected”*
**Heart Health**3%
*“Heart burn”*
**Texture/Consistency-Overall**2%
*“It's slightly chalky in texture”*
**Regulates Digestion**2%
*“gives me acid reflux”*
### **Top return reasons **
**Advertised Vs Actual Product**100%
## **Common questions**
- **Is antacid profitable to sell on Amazon United States?**
- The niche generates $784K/yr across 19 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -4.6%. Flapen's verdict: Skip it (49/100).
- **How competitive is the antacid niche?**
- 8 brands and 115 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in antacid?**
- Top complaints mined from reviews: Taste-Overall, Ease Of Chewing/Swallowing, Hard Feel. The return rate is 0.0%.
- **When does demand for antacid peak?**
- Demand peaks in Jul–Aug; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the antacid niche?**
- Listings span $5.18–$28.12; the average listing price is $10.05 (sweet spot $15–$100). The average incumbent carries 5,020 reviews — the moat a new listing must climb.
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