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Knowledge Matters

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What are FODMAPs

  • These are rapidly fermentable, short-chain carbohydrates and consist of:
  • A monosaccharide - Fructose
  • Oligosaccharides - Fructans and galactans
  • A disaccharide - Lactose
  • Polyols - Sugar alcohols
  • These short-chain carbohydrates are also known as 'fast-food' for bowel organisms.
  • Bowel bacteria can ferment these carbohydrates to create energy and produce hydrogen or methane (or both) - gases that are a by-product of fermentation

FODMAPs & The Irritable Bowel Syndrome (IBS)

  • Irritable Bowel Syndrome or IBS for short is known as a functional gastrointestinal disorder (FGID)
  • This is a common medical problem in society and symptoms such as bloating, distention, abdominal pain, diarrhoea or constipation or both are commonplace problems.
  • These symptoms are debilitating in many individuals and accounts for a large percentage of cases of absenteeism from work.
  • Pharmacological interventions offer mild to ineffective help to alleviate the symptoms.
  • What has been shown to be of great help in many individuals is a FODMAP exclusion diet.

Bowel distention by gas - a major player in symptom generation

  • The gas (hydrogen or methane or both) produced by bowel organisms metabolising these FODMAPs causes not only the pain and distention felt and seen in sufferers, it can also lead to the motility problems associated with IBS including bowel spasm.
  • For more detail on FODMAPs - Click here
  • For even more information on IBS including medical issues, treatment and breath testing - Click here

 This Low-FODMAP NutriDesk Diet

  • This diet will provide you with a very low FODMAP dietary intake
  • This may be valuable if you have been suffering from symptoms for an extended period of time.
  • You can then work your way through this problem with a dietitian familiar with FODMAPs who should be able to narrow down the offending foods and organize breath testing for some of these FODMAPs to see which ones are easily digestible in an individual. Breath testing thus enables an individual to see which FODMAP/s they can tolerate and include these particular FODMAPs in their diet.
  • In other words, breath testing will enable you to identify which FODMAP you can or can't tolerate so that you can exclude only those you are sensitive to rather than blanket exclusion of all FODMAPs.

Can the low-FODMAP diet help everyone with IBS?

  • The short answer is - No!
  • It can be of significant help in 75% of cases
  • In some, a different mechanism is in place and FODMAP exclusion will offer little help to these people.

The downsides of a low FODMAP diet

  • If you restrict many foods, you may also restrict fibre intake which are prebiotics important for bowel health.
  • You may also decrease micronutrient intake by restricting too many foods
  • For this reason, it is important to use this NutriDesk diet in conjunction with a trained FODMAP-aware dietitian to ensure nutrient intake is adequate.


NutriDesk has been the culmination of 26 years of medical experience and post-graduate study and has taken 5 years to design with an additional 2 years of website development to work out how to incorporate all of these complex nutritional concepts and benefits
into one easy to follow diet!

About NutriDesk

The diets are very easy to follow --- too easy!

  • If you can follow a recipe, then you will be able to follow a NutriDesk diet.
  • Don't be concerned about the depth of knowledge provided here for you. The information is there for you to see the science behind the diet.
  • You can rest assured that the concepts that have been described are embedded in the diets themselves. So you don't need to understand what is being presented, you can simply follow the diets like one would follow a recipe.

A big thumbs-up for ease of use.

  • The aim of these diets is to provide an in-depth analysis of the nutritional factors thought to prevent or alter the course of a disease. NutriDesk confronts the complexities involved and takes great effort to provide a clear and concise picture of knowledge as it currently stands.
  • This knowledge is expanded upon by rich graphical representations and by multimedia tutorials that are aesthetically pleasing but also carry scientific depth. These features are used to help a lay individual navigate through the knowledge base in a highly visual and easy-to-understand way making the learning experience that much more pleasant.
  • Remember, you can save the diet you have chosen and you also have 24 hours to change your body composition data in BodyCalculator if you feel you have made a mistake.
  • You can then take your time to go back and again to this saved diet within the MyNutriDesk panel. Simply go to My Diets within this personal panel and here you can view the details of your diet at your leisure.

The Info button on the NutriDesk Diet Button Panel

  • Further information can be found within the purchased diet by clicking the buttons of the NutriDesk Diet Button Panel above.
  • You can find all the information presented on this page by clicking the 'Info' tab within the diet. This information may or may not be expanded upon.
  • Each diet you choose is rich with specific information about your particular dietary or medical concern.
  • To make it easy for you, a wealth of highly specific information has been placed into special compartments and accessed by clicking the buttons on the NutriDesk Diet Button Panel found on the top of each purchased diet.

What you should know:

  • Always discuss your dietary choice with your doctor before paying for and proceeding with any diet.
  • At the bottom of this text box you will see 'Information for General Practitioners'. Your GP can view this information to see if there are any problems for you as an individual especially if you have a medical condition, are taking certain medications or if you have a genetic predisposition to a particular problem.
  • The 'info' tab within the diet of your choice will have expanded explanations to the points and  questions raised below.
  • The main reference database is also located in the NutriDesk Diet Button Panel under 'References' which can be viewed once you purchase the diet of your choice.
  • NutriDesk uses highly reputable sources of information for this website. However, the onus is on you to research and seek medical counsel to see if any information or recommendation found within this diet or on this website is appropriate to your unique personal needs.
  • Please view 'Our Philosophy' and the 'Terms of Use' of this website before proceeding.
  • The 'My Research' portal is your gateway to wonderful resources to begin your personal research. It is your right to question anything being presented to you and this is encouraged. My Research is a great tool to begin this journey of nutritional discovery.
  • The GP Resources area will provide your general practitioner with not only the resources you have access to, but also resources aimed more at a professional level. This will enable your GP to do some research on your behalf if presented with personal queries triggered by this website.

Your diet

In three easy steps


Enter your details into Body Calculator  to enable your personal diet to be calculated. You need to be registered to save your results. Once registered, your saved results will be found in the 'My NutriDesk' menu bar.


Browse our diet categories from the menu on the left to find the right diet for you.


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