---
title: "tums 500mg — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/health-household/tums-500mg"
last_updated: "2026-07-14T01:51:16.468Z"
locale: en
meta:
  description: "a small market ($46K/yr) — tums 500mg doesn't clear our bar today."
  "og:description": "a small market ($46K/yr) — tums 500mg doesn't clear our bar today."
  "og:title": "tums 500mg — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
---

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# **tums 500mg**

**Skip it**

A small market ($46K/yr) — this niche doesn't clear our bar today.

Market size 11Growth 32Conversion 92Competition 63Returns 100Price range 52Avg price 61Brand share 16Review moat 34Quality gap 20

**Returns**

**Incredible****0.0%**

return rate — above 6% kills the launch gate

**Conversion**

**Great****11.4%**

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

**Competition**

**Good****47%**

top-5 click share — leaders hold, buyers still browse

**Avg price**

**Good****$13.28**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$2.67–$28.12**

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

**Review moat**

**Okay****3,126.32**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Okay****+5.8%**

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

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Bad****94%**

top-5 brand share — brand-locked demand

**Market size**

**Bad****$46K**

$46K/yr · 30K searches

## **Competition**

The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**9 **—flat

**Sellers**

**665**

**Top-5 brand share**

**94%**

**Open market**

**4%**

- TUMS54% - MAJOR25% - RUGBY LABORATORIES8% - Quality Choice4% - 365 by Whole Foods Market3% - berkley jensen3% - Open — no brand owns it (3 brands, 4%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$2K10%$5K15%$7K20%$9K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 25 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)](https://m.media-amazon.com/images/I/41CRrLOgNRL.jpg)**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) [2![Major Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (1 Pack)](https://m.media-amazon.com/images/I/31auUadytrL.jpg)**Major Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (1 Pack)**MAJOR**$6.64**4.6★881 rev](https://www.amazon.com/dp/B00SW0HRRE) [3![TUMS Ultra Strength Antacid Tablets for Chewable Heartburn Relief and Acid Indigestion Relief Assorted Berries - 12 Pack of 12 Count Rolls](https://m.media-amazon.com/images/I/51inirhixdL.jpg)**TUMS Ultra Strength Antacid Tablets for Chewable Heartburn Relief and Acid Indigestion Relief Assorted Berries - 12 Pack of 12 Count Rolls**TUMS**$23.09**4.6★181 rev](https://www.amazon.com/dp/B005EDUYZY) [4![Rugby Regular Strength Antacid Chewable Tablets - Made with 500 mg of Calcium Carbonate - Peppermint Flavor - 150 Count](https://m.media-amazon.com/images/I/31Mvh5kxm0L.jpg)**Rugby Regular Strength Antacid Chewable Tablets - Made with 500 mg of Calcium Carbonate - Peppermint Flavor - 150 Count**RUGBY LABORATORIES**$6.55**4.6★1,432 rev](https://www.amazon.com/dp/B089DVND23) [5![TUMS Chewy Bites Chewable Antacid Tablets for Ultra Strength Heartburn Relief Mixed Fruit - 200 Count](https://m.media-amazon.com/images/I/41eYm0uCxQL.jpg)**TUMS Chewy Bites Chewable Antacid Tablets for Ultra Strength Heartburn Relief Mixed Fruit - 200 Count**TUMS**$28.12**4.7★4,819 rev](https://www.amazon.com/dp/B0B82S3ZG6)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count](https://m.media-amazon.com/images/I/41LEiy-THlL.jpg)**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](https://m.media-amazon.com/images/I/515PcSUE+oL.jpg)**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) [![TUMS Chewy Bites Chewable Antacid Tablets for Heartburn Relief Assorted Berries 50 Count](https://m.media-amazon.com/images/I/51gxKN-7vLL.jpg)**TUMS Chewy Bites Chewable Antacid Tablets for Heartburn Relief Assorted Berries 50 Count**TUMS**$19.81**117 rev7mo ago](https://www.amazon.com/dp/B0FWRBW28S) [![Alka-Seltzer Hangover Relief Tablets Fast Relief Starts in About 15 Minutes for Headaches Body Aches & Mental Fatigue Bachelorette Party & Bachelor Party Dispenser Pack 120 Count](https://m.media-amazon.com/images/I/51Py1MolTAL.jpg)**Alka-Seltzer Hangover Relief Tablets Fast Relief Starts in About 15 Minutes for Headaches Body Aches & Mental Fatigue Bachelorette Party & Bachelor Party Dispenser Pack 120 Count**Alka-Seltzer**$23.20**5,349 rev2y ago](https://www.amazon.com/dp/B0CLBG2Z96) [![TUMS Gummy Bites Dietary Supplement for Occasional Heartburn Relief Upset Stomach and Acid Indigestion Cherry Berry Burst - 108 Count](https://m.media-amazon.com/images/I/41vtPYD42WL.jpg)**TUMS Gummy Bites Dietary Supplement for Occasional Heartburn Relief Upset Stomach and Acid Indigestion Cherry Berry Burst - 108 Count**TUMS**$19.56**2,051 rev2y ago](https://www.amazon.com/dp/B0CMJ3C55L)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count](https://m.media-amazon.com/images/I/41LEiy-THlL.jpg)**TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count**TUMS**$14.70**4.8★**▲ 239%**](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](https://m.media-amazon.com/images/I/515PcSUE+oL.jpg)**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★**▲ 230%**](https://www.amazon.com/dp/B0GJN28LBP) [![TUMS Chewy Bites Chewable Antacid Tablets for Heartburn Relief Assorted Berries 50 Count](https://m.media-amazon.com/images/I/51gxKN-7vLL.jpg)**TUMS Chewy Bites Chewable Antacid Tablets for Heartburn Relief Assorted Berries 50 Count**TUMS**$19.81**4.7★**▲ 115%**](https://www.amazon.com/dp/B0FWRBW28S) [![MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)](https://m.media-amazon.com/images/I/41CRrLOgNRL.jpg)**MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)**MAJOR**$10.01**4.6★**▲ 77%**](https://www.amazon.com/dp/B01M07E78O) [![365 by Whole Foods Market Antacid Regular Strength 150 Count](https://m.media-amazon.com/images/I/31W+uqYyuPL.jpg)**365 by Whole Foods Market Antacid Regular Strength 150 Count**365 by Whole Foods Market**$3.96**4.6★**▲ 39%**](https://www.amazon.com/dp/B08JMYMD72)

**~~View all trending →~~**

## **Demand**

Weekly Amazon search volume, last 40 weeks — +5.8% search growth over the last 90 days.

900700Oct '25Nov '25Dec '25Feb '26Mar '26May '26Jun '26

## **Reviews**

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

### **What buyers love **

**Taste-Overall**19%

*“Good taste”*

**Value For Money**13%

*“Best value”*

**Advertised Vs Actual Product**8%

*“As advertised”*

**Quality-Overall**7%

*“Great quality”*

**Flavor**6%

*“Best flavor”*

**Heart Health**6%

*“they work really well for occasional heart burn”*

**Efficiency**6%

*“Does the job”*

**Ease Of Chewing/Swallowing**5%

*“not too chewy”*

**Acid Regulator/Stomach Ache Relief**5%

*“They help my stomach feel better”*

**Ease Of Use**3%

*“Ease of use”*

### **What buyers complain about **

**Taste-Overall**12%

*“Bad aftertaste”*

**Value For Money**7%

*“A bit expensive”*

**Size-Overall**7%

*“Smaller than expected”*

**Flavor**6%

*“Bland flavor”*

**Ease Of Chewing/Swallowing**4%

*“Not Chewy”*

**Functionality-Overall**3%

*“Did not work”*

**Sweetness**3%

*“So much sugar”*

**Hard Feel**3%

*“These tums are not soft”*

**Dosage**2%

*“Horrible and only 400mg per pill so the bottle was returned”*

**Texture/Consistency-Overall**2%

*“the texture is still chalky”*

### **Top return reasons **

**Advertised Vs Actual Product**100%