tums 500mg
Skip itA small market ($46K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great11.4%search→purchase rate — share of searches ending in a sale
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Avg price
Good$13.28avg listing price — sweet spot $15–$100
Price range
Good$2.67–$28.12cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay3,126.32avg incumbent reviews — the moat a new listing must climb
Growth
Okay+5.8%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad94%top-5 brand share — brand-locked demand
Market size
Bad$46K$46K/yr · 30K searches
According to Flapen's Amazon United States niche tracking, tums 500mg is a $46K/yr Amazon United States market (30K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 46/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
tums 500mg market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- $53K–$66K
- units × avg price
- Conversion rate
- 11.4%
- Avg BSR
- #208
- Page quality
- 0%
- Prime
- 96%
- Sponsored
- 56%
- Out of stock
- 0.0%
- Avg brand age
- 89 months
- Avg seller age
- 154 days
Competition & brand share
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%
Top 20: 100%
Top-5 click share
47%
Top 20: 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%)
Demand
Weekly Amazon search volume, last 40 weeks — +5.8% search growth over the last 90 days.Top tums 500mg search terms
- tums bulk9K/yr
- tums 500mg5K/yr
- tums 500mg regular strength5K/yr
- tums regular strength5K/yr
- bulk tums4K/yr
- tums 5002K/yr
Top tums 500mg 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)
MAJOR$10.014.6★881 rev
Major Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (1 Pack)
MAJOR$6.644.6★881 rev
TUMS Ultra Strength Antacid Tablets for Chewable Heartburn Relief and Acid Indigestion Relief Assorted Berries - 12 Pack of 12 Count Rolls
TUMS$23.094.6★181 rev
Rugby Regular Strength Antacid Chewable Tablets - Made with 500 mg of Calcium Carbonate - Peppermint Flavor - 150 Count
RUGBY LABORATORIES$6.554.6★1,432 rev
TUMS Chewy Bites Chewable Antacid Tablets for Ultra Strength Heartburn Relief Mixed Fruit - 200 Count
TUMS$28.124.7★4,819 rev
Newest
by launch date
TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count
TUMS$14.70173 rev
Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count
berkley jensen$9.961,381 rev
TUMS Chewy Bites Chewable Antacid Tablets for Heartburn Relief Assorted Berries 50 Count
TUMS$19.81117 rev
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$23.205,349 rev
TUMS Gummy Bites Dietary Supplement for Occasional Heartburn Relief Upset Stomach and Acid Indigestion Cherry Berry Burst - 108 Count
TUMS$19.562,051 rev
Trending
90-day click momentumTUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count
TUMS$14.704.8★
Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count
berkley jensen$9.964.7★
TUMS Chewy Bites Chewable Antacid Tablets for Heartburn Relief Assorted Berries 50 Count
TUMS$19.814.7★
MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)
MAJOR$10.014.6★
365 by Whole Foods Market Antacid Regular Strength 150 Count
365 by Whole Foods Market$3.964.6★
What buyers say about tums 500mg
What buyers praise and complain about, mined from review topics.What buyers love
“Good taste”
“Best value”
“As advertised”
“Great quality”
“Best flavor”
“they work really well for occasional heart burn”
“Does the job”
“not too chewy”
“They help my stomach feel better”
“Ease of use”
What buyers complain about
“Bad aftertaste”
“A bit expensive”
“Smaller than expected”
“Bland flavor”
“Not Chewy”
“Did not work”
“So much sugar”
“These tums are not soft”
“Horrible and only 400mg per pill so the bottle was returned”
“the texture is still chalky”
Top return reasons
Common questions
- Is tums 500mg profitable to sell on Amazon United States?
- The niche generates $46K/yr across 25 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +5.8%. Flapen's verdict: Skip it (46/100).
- How competitive is the tums 500mg niche?
- 9 brands and 665 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in tums 500mg?
- Top complaints mined from reviews: Taste-Overall, Value For Money, Size-Overall. The return rate is 0.0%.
- What does it cost to enter the tums 500mg niche?
- Listings span $2.67–$28.12; the average listing price is $13.28 (sweet spot $15–$100). The average incumbent carries 3,126 reviews — the moat a new listing must climb.