Reduce heartburn

What this outcome means

Gastroesophageal reflux is when stomach acid washes back up into the esophagus, leaving a burning chest or throat sensation often called heartburn. On DoseRank it maps to a defined health outcome built from human studies on reflux episode frequency, symptom severity scores, and acid-exposure measures – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

After-meal burnChest burning that rises after large or rich meals.

Nighttime refluxAcid creeping up when lying down that disrupts sleep.

Frequent heartburnRecurring burning several days a week despite care.

Stack buildersAlready taking supplements such as Calcium Carbonate and want the dose right.

Evidence level

92Strong

Calcium Carbonate – has strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 90 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best ingredients

Calcium Carbonate is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 90

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Calcium Carbonate 1000 mg vs 500-1000 mg.

Processed

4.7k

Available

4.7k

Ingredients

Brands

402

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

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Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Reduce heartburn

What this outcome means

Who it's for

After-meal burnChest burning that rises after large or rich meals.

Nighttime refluxAcid creeping up when lying down that disrupts sleep.

Frequent heartburnRecurring burning several days a week despite care.

Stack buildersAlready taking supplements such as Calcium Carbonate and want the dose right.

Evidence level

92Strong

Best ingredients

Calcium Carbonate is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 90

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Calcium Carbonate 1000 mg vs 500-1000 mg.

Processed

4.7k

Available

4.7k

Ingredients

Brands

402

Coverage

100%

Relevant ingredients

Which ingredient types matter for gastroesophageal reflux or heartburnOpen to see which ingredient types matter for gastroesophageal reflux or heartburn

4.4k products across 5 ingredient types — open to filter the ranking.

Use types to filter ranked products

Amino Acids & Derivatives

479 products

The building blocks of protein, taken singly for targeted effects – leucine for muscle, theanine for calm. Free-form versions absorb fast on an empty stomach.

Typical:

Botanicals/Herbal Extracts

915 products

Concentrated plant and herbal extracts standardized to actives. Potency depends on the extract ratio and marker content, not raw weight.

Typical: , , , ...

Minerals & Trace Elements

1.6k products

Inorganic nutrients from calcium to zinc. The chemical form drives absorption – chelates and citrates usually beat cheap oxides.

Typical: ,

Alkaloids & Stimulants

766 products

Plant-derived nitrogen compounds like caffeine that stimulate the nervous system. Effective but dose-sensitive, with real tolerance and dependence risk.

Typical:

Hormones & Hormone-like Compounds

618 products

Compounds that signal like the body's own hormones — melatonin, DHEA, pregnenolone. Powerful at tiny doses and easy to overdo; timing matters more than potency.

Typical:

Top decision cards

Best products for gastroesophageal reflux or heartburn

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for gastroesophageal reflux or heartburn

21st Century, Calcium Plus D3, 90 Tablets

21st Century$0.07 / serving4.7 · 10,938Available now

Why this ranks here

Evidence fitCalcium Carbonate is the strongest evidence signal for this outcome.
Dose fitCalcium Carbonate at 1000 mg lands inside the studied 500-1000 mg window.
Price / serving$0.07 per serving — mid price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustStrong trust signals — consistently high marks from verified buyer ratings.

Trade-offs

Value for money trails the rest of this list

The numbers

1000 mgIn rangeinside the studied 500-1000 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products