Fact sheetDiet specifications

Published on 1 Nov 2011

Test diet - hydrogen breath test

This document is part of the ACI Diet Specifications for Adult Inpatients. It is not to be used for patient education.


To provide a diet with minimal carbohydrate and dietary fibre.


Avoids cereals, fruit, vegetables and dairy foods.


This is a test diet used for a hydrogen breath test, to diagnose lactose intolerance or bacterial overgrowth.

Nutritional adequacy

Not nutritionally adequate.


The test diet is usually required for 18 hours prior to the test.


Suitable for use in paediatrics when combined with an age-appropriate diet.

Specific menu planning guidelines

Allowed Not allowed
Hot main dishes

Plain roasted or grilled meats, poultry and fish

Plain omelettes

All casseroles

All peas, beans and lentils

Sauces, graviesNone -
Starchy vegetables / pasta / riceNone -
VegetablesNone -
SoupsNone -
SandwichesNone -
Salads, dressingsNone -
Breads, cerealsNone -
SpreadsNone -
Hot breakfast choicesEggs, plain omelette, grilled baconBaked beans, sausages, mushrooms, tomatoes, spaghetti
FruitNone -
YoghurtNone -
Milk and cheeseHard cheesesAll others

Black tea and coffee

Low-joule cordial and soft drink


All others
BiscuitsNone -
MiscellaneousSalt, pepper-


  1. Northeastern Hydrogen Breath Testing. Preparation for the test. 2009.
  2. Food Standards Australia New Zealand. NUTTAB Online searchable database: foods that contain total dietary fibre.
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