antacid
Skip itBrand-locked demand (top 5 brands take 93% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 6% kills the launch gate
Conversion
Incredible18.2%search→purchase rate — share of searches ending in a sale
Market size
Good$784K$784K/yr · 428K searches
Price range
Good$5.18–$28.12cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Avg price
Okay$10.05avg listing price — sweet spot $15–$100
Review moat
Bad5,019.89avg incumbent reviews — the moat a new listing must climb
Growth
Bad-4.6%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad93%top-5 brand share — brand-locked demand
Competition
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%
Open market
3%
- Amazon Basic Care35%
- TUMS26%
- berkley jensen15%
- MAJOR13%
- RUGBY LABORATORIES5%
- KIRKLAND3%
- Open — no brand owns it (2 brands, 3%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$8.974.6★5,809 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$9.964.7★1,381 rev
TUMS Ultra Strength Chewable Antacid Tablets for Heartburn Relief and Acid Indigestion Relief Assorted Berries - 160 Count
TUMS$9.854.8★7,542 rev
MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)
MAJOR$10.014.6★881 rev
Amazon Basic Care Heartburn & Gas SuperChews Chewable Tablets Fast-Acting Relief Mixed Berry 82 Count (Previously SoundHealth)
Amazon Basic Care$8.174.6★6,709 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
Quality Choice Ultra Strength Antacid Tablets Heartburn and Acid Indigestion Relief Calcium Carbonate 1000 mg Berry Flavored Chewable Tablets 72 Count
Quality Choice$7.66779 rev
TUMS Chewy Bites Chewable Antacid Tablets for Ultra Strength Heartburn Relief Mixed Fruit - 200 Count
TUMS$28.124,819 rev
Amazon Basic Care Heartburn & Gas SuperChews Chewable Tablets Fast-Acting Relief Mixed Berry 82 Count (Previously SoundHealth)
Amazon Basic Care$8.176,709 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★
Major Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (1 Pack)
MAJOR$6.644.6★
MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)
MAJOR$10.014.6★
Rolaids Ultra Strength Antacid Chewable Tablets Mint 72-Count
Rolaids$8.834.8★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -4.6% search growth over the last 90 days.Peak months: Jul, Aug · busiest ÷ quietest = 2.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Taste smooth”
“Best value”
“It helps heart burn”
“Seemed to work in a satisfactory manner”
“Excellent product”
“Best flavor”
“As advertised”
“Helps with my acid reflux”
“Best tasting chewable”
“Easy to digest”
What buyers complain about
“Bad aftertaste”
“Not initially chewable”
“Hard As Rocks”
“Not worth the price”
“Horrible flavor yuck”
“Didn't work for me”
“Smaller than expected”
“Heart burn”
“It's slightly chalky in texture”
“gives me acid reflux”