The printed versions of this book:

From Left to Right:

0 = Spiral bound first edition (home produced), October 2015

1 = First commercially produced edition, April 2016

2 = Second commercially produced edition, July 2017 (with a few minor revisions and additions)

3 = Third commercially produced edition (DWA3), April 2019 (with a few revisions and additions)

Right = Spanish version from Asenbar. Contact for more information.

This website is mainly the third edition with some extra notes or links added.

No new printed editions are planned but some extra pages may be added to this website.

This book is FREE as a download, as is this website.

(There are too many snake-oil charlatans.)

See this page to download a pdf file and for details of how to obtain a printed copy.

Unsolicited testimonials for the first edition:

"so informative! I am still reading it, find it very helpful understanding all the aspects of these digestive disorders. Acid reflux, Barrett's etc."

"its such a great help to myself and thousands of people out there in need of this kind of help, that is not available by The health professionals!"

"a superb compendium of knowledge - thorough, comprehensive, approachable yet scientifically literate. ... the definitive guide to the subject."

"I have finally had the mental clarity to read ... "Down With Acid" from cover to cover.. This is so well written and a great asset for each one of us .. Every medical practice should supply this book."


Bite Size

About this site




The Digestive system, Indigestion, Heartburn, GORD, Oesophagus, Stomach

How the stomach makes acid


Too much, Too little

Medicines, Controversy over long term medication

Natural remedies


Gallstones, cholesterol


Hiatus Hernia, Heartburn, GORD

Extra-oesophageal reflux (LPR / “silent” reflux)

Natural remedies

Reflux reduction techniques - medication, surgery and devices:

fundoplication (various)

LINX, Stretta, Esophyx (TIF), MUSE, Endocinch, Endostim,

Enteryx, Gatekeeper, Angelchik, Reza Band, MedCline Reflux Stop


Acid and Alkali foods, Foods that may cause reflux, Know your triggers,

Some food myths, How we eat is important, Exercise after food

Combinations and complications:


Barrett's Oesophagus, Put Simply

Oesophageal cancer


Swallowing difficulties: achalasia, dysphagia, stricture

Nutcracker oesophagus

Induced Hypochlorhydria

Small Intestinal Fungal/Bacteria Overgrowth (SIBO/SIFO)

Tests and Diagnosis:



Cytosponge, EsophaCap, EsoCheck, Spit Test, Breath Test


24 hr pH manometry, Bravo 48 hour monitoring

DeMeester score

Barium swallow, Barium meal

Heidelberg Test


Endoscopic Mucosal Resection

RadioFrequency Ablation


Photo Dynamic Therapy

Argon Plasma Coagulation


Other – related conditions / complications, side effects etc:

Otorhinolaryngological (ENT)

Pneumonia, COPD

Bronchiectasis, Pulmonary Fibrosis

Gastric Dumping syndrome

Eosinophilic oesophagitis


Symptom checker - the most commonly noticed symptoms of acid and reflux

NICE Option Grid for treatment of long term heartburn.

Help - where to find more information and get support

The Author's Experience

Extra Pages (added since the last printed edition and only available online):





Alkaline Water


Fundoplication experience

Bite Size (a short synopsis of some of this book)