Bad breath from stomach causes and tips

bad breath with braces

If you are experiencing persistently bad breath, the reason could originate from deep within your digestive tract. But bad breath that results from the digestive system may have a myriad of causes.

bad breath with braces

Let’s take a look at the state of gut microbiome and the causes that go with it for bad breath.

The Digestive System and Bad Breath

The majority of people with bad breath from their digestive system are able to describe the smell of rotten eggs. It is caused by the gut microbiota, which breaks down sulfur, which releases an eggy-smelling gas. 

Some people, it’s a pleasant smell. But, the smell is more pungent and unpleasant smell.

Sulphur Burp Microbes

Sulfur-reducing micro-organisms and other micro-organisms make use of sulfur compounds in food items, and produce hydrogen sulfide, which is an end product. 

Your burps can smell like egg yolks that have gone rotten. The bacteria that cause this are H. Pylori.

H. Pylori Symptoms

H. Pylori is one of the most frequent sources of bad breath in your digestive tract. It’s a form of bacterium that’s part of the microbiota in your gut however, when things are unbalanced, the bacteria may create havoc.

It is a cause of duodenal ulcers and around two-thirds of stomach ulcers. It’s also commonly found in the stomach lining of people suffering from stomach cancer.

H. Pylori is the most prevalent bacteria that causes chronic illness in humans. It’s found in more than 50 percent of the population of the world and is more prevalent in older individuals and in less clean, densely populated areas. 

With improved hygiene standards and less overcrowding incidence of infection is declining.

H. symptoms of pylori can be transmitted via mouth-to mouth contact, water that is contaminated sharing food or utensils as well as through body fluids , such as vomit or feces.

While most people with H. the pylori infection do not suffer from many symptoms, should they experience symptoms with unpleasant breath it’s a positive indicator that you could be suffering from it.

H. Pylori symptoms are:

  • nausea
  • Abdominal discomfort
  • Bloating
  • burping
  • Loss of appetite
  • weight loss
  • Peptic ulcers

If you don’t show symptoms, how do you determine if you’re suffering from H. Pylori, and what is the source of the bad breath you have?

Testing H. pylori symptoms

  • Tests of breath

A breath test for urea can identify the presence of H. Pylori is the reason for the bad breath you have.

  • Testing for blood

The laboratory analysis is able to detect H. Pylori in a blood sample.

  • Tests with Stool

Your feces may also be examined for H. Pylori. Your doctor will offer you the container you can bring home so that you are able to provide the stool sample that you can send to a lab to analyze.

The treatment for H. Pylori symptoms

In certain instances there are instances where a 1- or 2-week course of antibiotics might be needed to relieve H. Pylori-related symptoms. It can also help with bad breath. 

Common antibiotics prescribed by physicians for H. Pylori include amoxicillin or Tetracycline (not recommended for children under 12 years of age. ) metronidazole or clarithromycin.

The use of antibiotics is to be done with extreme caution due to their effects of your microbiome. In some instances, however, they may be essential.

Before you start taking antibiotics, you must be aware of the general causes of digestive disorders.

GERD indicators as the cause of bad breath

GERD signs are frequent digestive disorder which may cause bad breath.

The most commonly reported GERD indications are persistent heartburn (a burning sensation that occurs in the chest’s lower region) that is the result of acid reflux.

Other less common GERD symptoms include:

  • The cause is Reflux (stomach acid or stomach contents building up, or splashing into the esophagus and even the mouth)
  • Burping or snorting
  • The discomfort or pain of swallowing
  • Waterbrash (a sudden surge of saliva)
  • Dysphagia (the sensation of food sticking to the esophagus)
  • A persistent sore throat
  • Infections of the thrombus
  • Gum inflammation or gum disease
  • Infection of the enamel of the tooth (your dentist might notice this)
  • The chronic irritation in the throat
  • The voice is croaky in the morning.
  • A bitter taste in the mouth

What is the cause of GERD Signs and symptoms?

H. Pylori infections can be a significant cause of GERD symptoms as well as in other digestive problems.

GERD symptoms result from the failure of the muscular valve (sphincter) that divides the lower part of the esophagus and the stomach. This is referred to as lower esophageal or LES valve. or LES.

The LES typically expands to allow liquids and food that is swallowed to flow easily into the stomach. When the valve is relaxed too much or weakens it could allow stomach acid and other contents into the esophagus. which can cause GERD symptoms and , sometimes bad breath.

Most often, patients get treated GERD symptoms by using proton pump inhibitors that help to reduce stomach acid production or medications that neutralize acid in the stomach.

The book Heartburn Relieved , Dr. Robillard discusses how heartburn is caused by bacterial “overgrowth and the inability of digestion of carbohydrates.

Tips For Reducing Acid Reflux and GERD Symptoms:

  • Take a deep breath, using your nose, and then deeply in to your diaphragm (belly breathing). This will ensure that you get enough oxygen throughout the body.
  • Cut down on simple carbohydrates such as wheat and sugar from your diet
  • Consume foods high in probiotics and prebiotics. To maintain your microbiome balance, you must eat prebiotics (food that feeds bacteria) and probiotics (fermented food items).

SIBO (Small Intestinal Bacterial Overgrowth) and Bad Breath

If you’re experiencing gas, burping or the sensation of bloating, SIBO could be responsible for your bad breath..

Within your digestion system, billions of microbes reside in your large intestines where digestion occurs. The small intestine was designed to help absorb nutrients and has a lower microbiota. However, occasionally the overgrowth of bacterial species occurs here.

About 80% of patients suffering from irritable bowel syndrome (IBS) also suffer from Small Intestinal bacteria overgrowth (SIBO).

Symptoms of SIBO consist of:

  • Burping
  • Flatulence
  • Bloating within an hour after eating
  • Diarrhea
  • Cramping
  • Constipation
  • Fatigue
  • Joint pain
  • Skin skin
  • IBS
  • Asthma

Certain patients might suffer from SIBO due to a gastric illness. Patients suffering from lactose or fructose insufficiency might also have issues with the gut microbiome. 

These symptoms are usually worse following a meal containing fiber.

The gasses that are produced by SIBO are the main reason for complaints and can cause bad breath.

Testing for SIBO

In the event that you, your physician or dentist suspect that SIBO might be the cause for your bad breath If you suspect that SIBO is the cause, an breath test to determine the presence of hydrogen sulfur might be suggested.

The test is a measure of the methane and hydrogen gas created by the bacteria living in the small intestine, which has diffused into blood, then into the lungs in preparation for expiration.

After a 1 – or 2-day preparatory diet that eliminates most of the food items that feeds the bacteria drinking the sugar solution made that contains glucose or lactulose.

bad breath with braces

Treatment for SIBO

If SIBO is found to be the reason for your breath odor A course of antibiotics could be suggested. But, it is not uncommon for it to recur.

The low FODMAP (Fermentable, Oligo-, DiMono-saccharides and polyols) diet could also benefit in the in the short-term. It is recommended to cut down or eliminate simple carbohydrates like wheat or sugar in your diet.

Irritable Bowel Syndrome and bad breath

While SIBO typically causes bad breath, IBS may be the cause of bad breath too.

Irritable constipation (IBS) is one of the most frequent digestive disorder. It is most often a case of frequent abdominal pain, as well as altered habits of bowel, like constipation or diarrhea, or both.

Other IBS symptoms may include:

  • Bloating
  • The sensation of a lack of evacuation following defecation
  • In your stool, you may find mucus
  • Heartburn
  • Bleeding
  • Fever
  • Weight loss

If you have bad breath, which can be described as sulfur-based burping, and you also experience vomiting or diarrhea it is recommended that you see an expert doctor right away. 

It could be one of the first symptoms of irritable bowel syndrome.

Crohn’s Disease and Celiac Disease

Inadequate digestion of food is the most common reason behind bad breath. 

Both celiac disease and Crohn’s can cause digestive problems, resulting in more food that is not digested for sulfur-reducing bacteria to digest. 

This creates more hydrogen sulfide and can lead to unpleasant burps, and occasionally bad breath.

Digestive System Infection

If you’ve had diarrhea or digestive issues, along with smelly breath, then it could be due to an the infection.

A specific digestive system problem can result in bad breath. Giardiasis is a diarrheal illness caused by the microorganism Giardia lamblia, which is a single-cell parasite that can spread to people through food or drinking water. 

The symptoms of Giardiasis include diarrhea, bloating and urination, as well as unpleasant-smelling burps and bad breath.

Your bad breath could be the result of Giardiasis You have contracted the infection via:

  • Inhaling Giardia sucked up from surfaces that have the feces of an infected individual or animal
  • Intentionally or by accident swallowing water infected, or using ice derived from infected sources of water
  • Giardia can be present (for instance poorly or untreated waters from streams, lakes, or wells)
  • Foods that are not prepared contain Giardia organisms
  • Being in contact with anyone who has Giardiasis

The time of incubation after exposure typically lasts between 1 and three weeks. The diagnosis of Giardiasis is usually determined by examining stool samples.

If you have ongoing infections physician might prescribe antibiotics.

  • Metronidazole (Flagyl) is the most widely prescribed antibiotic for giardia infections however, you could be given a prescription
  • Tinidazole (Tindamax) or Nitazoxanide (Alinia).

G a llbladder issues as well as bad breath

Gallstones, gall bladder problems and gall bladder elimination may cause unpleasant burping and can cause bad breath.

The gall bladder of your body produces digestive juices that are used to aid in fat absorption.

As the gall bladder builds minerals and the bile ducts be blocked. 

This could cause inflammation as well as nausea, pain or vomiting, especially following a heavy meal.

The symptoms of gall bladder disease are:

  • Pain that is intense in the upper abdomen — particularly after eating a large meal. It can last for several minutes or even hours.
  • Sudden fever
  • Vomiting and/or nausea following meals
  • The stool is light in color and has a clay hue (caused by insufficient bileproduction, this is a sign that gall bladders are blocked. ducts)
  • Itchy skin rashes
  • A tongue coated with white
  • A strong body odor and yellowish skin
  • Eyes that are yellow, discolored, and dark circles below the eyes.

Gall bladder problems are be a serious health problem If you’re experiencing these symptoms in conjunction and bad breath make sure that you visit a doctor.

constipation which causes bad breath

If your breath smells like urine the reason behind your bad breath could be constipation.

Constipation is a result of an accumulation of food particles that are not digested in the bowels. It is believed to be the result of a passive lifestyle and lack of exercising.

Being in a sedentary position, as the majority of jobs we work in today call for, isn’t great for digestion. If you’re also on an eating plan that is low in fiber, and you’re not doing a lot in exercise routine, then you could be suffering from constipation. 

It is possible that constipation could be the reason for bad breath.

If you are suffering from constipation or bad breath If you suffer from constipation and bad breath, make sure to engage in regular exercises, increase your intake of fiber.

Drink plenty of water every hour, and cut down on the amount of fats you consume.


Gastroparesis refers to a condition in which there are nerves damaged or stomach muscles which causes it to empty extremely slowly. 

Sometimes, nerve damage can occur because of long-term diabetes (diabetic gastroparesis).

The vagus nerve could be damaged or even severed in the course of surgery, which could interfere with the process of removing food out of the stomach. 

Sometimes, however, gastroparesis can occur with no motive (idiopathic gasparesis).

This slow emptying of your stomach may cause bad breath.

Pyloric Stenosis

Bad breath can be a sign of the condition known as pyloric stenosis. This is a condition that occurs when the last portion of the stomach has been abnormally narrowed. 

It is most commonly observed in infants, and could be a result of genetic or environmental causes. The most prominent symptom is that it could lead to dehydration which, in turn, can cause bad breath. If untreated, dehydration could lead to serious complications.

Supplements to treat natural bad breath

To find a simple natural cure for removing bad breath caused by digestion I suggest these products to assist in:

1) Kick-start digestion

2.) Rebalance gut microbiome

3.) Recalibrate and re-adjust the immunity system

  • Probiotic – GutPro(r) by Organic 3, Inc.
  • Enzyme (with HCl) – GutZyme(r) HCl by Organic 3, Inc.
  • Enzyme (without HCl) – GutZyme(r) by Organic 3, Inc.
  • Cod Liver Oil – Rosita Real Foods (Liquid)
  • Cod Liver Oil – Rosita Real Foods (Softgels)
  • Magnesium – Goodnight Maggie(tm) by Organic 3, Inc.
  • Magnesium – Wake Up Maggie Capsules by Organic 3, Inc.

If you experience digestive system symptoms and bad breath, see your physician. Don’t be embarrassed , they’ve had it all before! Their advice could help you solve your digestive issues and bad breath.

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