How Can I Stop Smelly Farts? – A Trump Solution Using A Banana – Odour Reducing Flatulence Foods

How Can I Stop Smelly Farts? – A Trump Solution Using A Banana – Odour Reducing Flatulence Foods.

This article describes Australian research into the causes of smelly farts and how to prevent them. Scientists working on faeces identified which foods to avoid to stop those embarrassing ‘elevator wind release’ moments. They describe the foods that improve the smell of flatulence. By reducing the release of Hydrogen Sulphide in the gut these findings are relevant for inflammatory bowel disease and bowel cancer. 

Smelly Farting And How To Avoid It
Smelly Farting And How To Avoid It

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The subject of this new research is flatulence odour, otherwise known as smelly ‘farting‘ or ‘trumping‘. We have all had the experience of being on our own in a lift (elevator) and ‘accidentally’ releasing a significant blow-out just before the door opens and allows another passenger into our ‘enclosed’ space. If we are lucky we may have a small animal with us and we can cast a knowing glance at the new passenger ‘Oh dear me ..Fido has done it again…..naughty boy!’. Alternatively we can look at the soles of our shoes to try and give the impression we may have trodden in something unpleasant on the sidewalk.

Smells happen – and usually at rather embarrassing moments.

Research by Chu Yao and her team at Melbourne, Australia (Monash University) has uncovered some important information relating to the smelliness of farts and more importantly how to reduce the unpleasantness of the smell. The smell when we pass wind comes from our gut bacteria as they breakdown the proteins in our diet. Proteins contain small amounts of sulphur which is broken down to produce the compound Hydrogen Sulphide. Any school chemistry student knows that hydrogen sulphide has a characteristic ‘stink bomb’ smell of rotten eggs (which is not surprising as eggs contain a lot of protein).

Proteins like eggs lead to smelly flatulence
Proteins like eggs lead to smelly flatulence

The gut bacteria do an incredibly useful job for us by helping to break food down into smaller chemical units that we can ingest through our intestines and use as energy or as building blocks to make bigger useful macro molecules. As they break down our food (in particular carbohydrates) these bugs produce loads of gases like carbon dioxide, methane and hydrogen as byproducts. The nice thing about these gases is that they don’t smell. We release them from our bottoms when we pass wind (as well as lots of ‘smell-free’ oxygen and nitrogen that we simply gulp down when we swallow air with our food).

It is specifically the proteins in our food that make the smelly stuff. Unfortunately any smelly hydrogen sulphide that is produced can also exacerbate inflammatory bowel disease and increase the risk of bowel cancer. It is perhaps no coincidence that evolution has taught us to find the presence of hydrogen sulphide in farts somewhat distasteful.

Chu Yao got her team to examine the faeces from seven healthy people (This reminds me of the time when, as a medical bacteriologist, I left a stool sample too long in its sealed container before doing my bug tests – sometimes mistakes can blow up in your face!). Chu Yao mixed the faeces samples with cysteine – which is the main bit of the proteins that contains sulphur. You can find proteins, all of which contain cysteine, in meat, eggs, and dairy products – items popular with body builders who are well known for being smelly poopers.

Interestingly the ability of the faeces samples to produce smelly hydrogen sulphide was reduced considerably when they were also mixed with certain carbohydrates. These carbohydrates are referred to as being ‘slowly absorbed‘ because they don’t get fully digested in the top part of our gut (the stomach and small intestine). They move down to the large intestine where our friendly bacteria living there help to fully break them down so we can use them as energy sources.

Our gut bacteria breakdown these slowly absorbed carbohydrates releasing smell-free carbon dioxide, methane and hydrogen in preference to breaking down the ‘smelly’ proteins. So what are these fart sweetening carbohydrates? There are two kinds:

  • Resistant Starch – found in potatoes, bananas, legumes and cereals
  • Fructans – found in wheat, artichokes and asparagus

These categories of food reduced the production of hydrogen sulphide from the faeces samples by about 75%. Basically our gut bacteria prefer to use these ‘clean’ foodstuffs and so when they are present in our diet they don’t have to bother messing around with smelly protein (they, like us, probably don’t like the smell: Hydrogen sulphide is just as unpleasant for most bacteria as it is for us).

The revolutionary thing about this research is that it overturns conventional thinking about flatulence. Previously people with stinky farts tended to avoid fibre containing foods which were known to generate wind . However Chu Yao’s faeces studies highlight that there is good wind and there is bad wind. Bugs in the gut that generate hydrogen, methane and carbon dioxide – all non smelling gases – are doing an excellent job and although the farts may sometimes be noisy they are usually smell free. The team intends to continue their research to determine if slow release carbs can reduce smelly hydrogen sulphide flatulence in a controlled trial with volunteers suffering from inflammatory bowel disease.

If you want to avoid smelly embarrassments increase the carbs listed above and reduce the proteins. Remember the healthy moto ‘Good Carbs Mean Good Farts

Chris’s tip of the week – shove in a nana before you take the elevator.

Chris Duggleby. 

For more info check out the original research by Chu Yau presented to the annual meeting of the Gastroenterological Society of Australia in Adelaide, October 2016

A Banana Can Sweeten Every Trump
A Banana Can Sweeten Every Trump

If you found this article interesting please consider taking a look at some of his other recent reports on similar subjects.

Just click on the titles below:

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31st Jan 2016  Bed Bugs – Insecticide Resistance – Arbovirus Transmission – Zika and Microcephy

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13th Jan 2016 Kill Head Lice In A Day With The Newly Developed Plasma Nitcomb From The German Fraunhofer Institute

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and here are some fun related articles:

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21st June 2015: Bio-undies: Guilt free Passion with ‘Easy Emma’ and ‘Loose Harry’and Getting Rid of Garden Snails with Rent-a-Duck

4th March 2015: Hamburg Reeperbahn (St. Pauli): Germans install walls that urinate on passers-by

17th April 2014: Niche On-line Dating Services (Specialities: Herpes, Thrush and Genital Warts)

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You can also find some of my more humorous reports in the Alpine Press section of this site using the link here.

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