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Acid Block

product on market Tablet or Pill Rx Vitamins Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 38% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Calcium carbonate and alginic acid are used to neutralize stomach acid and create a protective barrier in the esophagus. There is strong evidence supporting these ingredients for the temporary relief of heartburn and acid reflux. The overall evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Acid Block
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Chewable Tablet(s)
Serving Size
60
Servings
Other Combinations
Product Type
38%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
10 {Calories}
Total Carbohydrates
2 Gram(s) (1% DV)
Sugar
2 Gram(s)
30 mg (3% DV)
Market median: 500.0mg (266 products) 441 studies (A:25, B:228)
Alginic Acid
450 mg
250 mg
Market median: 420.0mg (127 products) 4 studies (A:0, B:1)
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
Slippery Elm
50 mg

Other Ingredients

Fruit Sugar proprietary FOS Chicory root extract Mung Bean extract Stearic Acid
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Recommended Usage: As a dietary supplement, chew 1-2 tablets after meals or before retiring. For best results, drink a glass of water after chewing tablets.

Warnings & Precautions

Do not use if tamper-evident seal is broken or missing.

KEEP OUT OF REACH OF CHILDREN

Formulation Notes

Contains no yeast, dairy, eggs, gluten, corn, wheat, starch, artificial colors or preservatives.

Vegetarian

Additional Information

ACID BLOCK is a combination of nutrients designed to provide relief of intermittent heartburn and indigestion. Alginic acid and sodium alginate react with saliva and gastric acid to form a foamy froth or alginic raft that floats on top of the gastric contents and acts as a barrier to acid and food reflux. Slippery elm and deglycyrrhized licorice act as demulents which are soothing to the alimentary canal.

PHYSICIAN FORMULATED

For Temporary Relief of Occasional Indigestion and Heartburn

OPTIMAL NUTRITIONAL SUPPORT

Product No. 4015

Metadata

Product Details

UPC / SKU0 08429 04015 7
DSLD Entry Date2015-02-25
Product TypeOther Combinations
FormTablet or Pill
DSLD ID42025
Data Updated2026-04-11
Research

Research Evidence

511
Research Sources
57
Avg Quality
266
Meta Analysis
95
Systematic Review
76
Rct
49
Clinical Trial
12
Guideline
4
Regulatory Source
2
Cochrane Review
2
Other
2
Narrative Review
1
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.