high sulfur foods in a circle around the word sulfur in the middle

Poop Smells Like Sulfur: Causes and What to Do

We will dive into a topic that might make some folks squirm but is undoubtedly essential, poop that smells like sulfur. We will explore what causes this and what to do.

Because understanding the causes and remedies can save you from awkward moments and help you maintain a healthy gut. So, hold your nose (pun intended), and let’s get started!


Normal Poop Smell And Stool Consistency


Normal poop smell and stool consistency can vary from person to person, but generally, healthy bowel movements should have a mild to moderate odor and a soft, well-formed consistency.

The smell of feces is typically influenced by the foods consumed, gut bacteria, and the presence of waste products and gases like methane, hydrogen, and hydrogen sulfide.

Although it’s normal for poop to have an unpleasant smell, it shouldn’t be overpowering or excessively foul.


The Role Of Gut Bacteria And The Smell Of Stools


Before we plunge into the stinky stuff, let’s discuss what constitutes normal poop. Your gut is home to trillions of good and bad bacteria that break down food and release gases as part of digestion.

These gases mingle with your poop, giving it that not-so-lovely aroma.


Typical Smell And Appearance Of Poops


Though it’s no bed of roses, healthy poop shouldn’t be too offensive to the nose.

As for appearance, think brown and log-shaped—yeah, we know, not the most delightful image. Now, let’s move on to the main topic of poop smelling like sulfur.


Understanding The Sulfur Smell In Your Poop


So, what’s the deal with sulfur? Sulfur is a chemical element that’s found in many natural compounds, including some stinky ones like hydrogen sulfide.

So, sulfur is likely the culprit if your poop smells like rotten eggs.


Foods With High Sulfur Content


Foods with high sulfur content are an essential part of a balanced diet and staying in good health, as sulfur is a vital nutrient required for various biological functions in our bodies.

The problem is when you include too many sulfur-containing foods in your diet you can have issues when it comes out the other end.


High Sulfur Content Foods Include:


Allium Vegetables – Garlic, Onions, Leeks, Shallots, Chives

Cruciferous Vegetables – Broccoli, Cauliflower, Brussels sprouts, Cabbage, Kale, Collard greens, Bok choy, Arugula, Radishes, Turnips

Eggs – Egg yolks (in particular)

Animal Proteins – Red meat (e.g., beef, lamb, pork), Poultry (e.g., chicken, turkey), Fish and seafood (e.g., tuna, salmon, cod)

Legumes – Beans (e.g., black beans, kidney beans, pinto beans), Lentils, Soy products (e.g., tofu, tempeh, edamame)

Nuts And Seeds – Brazil nuts, Sunflower seeds, Sesame seeds, Chia seeds, Flaxseeds, Pistachios

Grains – Wheat and wheat products (e.g., bread, pasta, cereals), Barley, Oats

Dairy Products – Milk, Cheese (especially hard and aged varieties), Yogurt


Sulfur Effects On Your Gastrointestinal System


Your body needs sulfur to function properly, but sometimes, it can produce an excess of sulfur compounds, leading to smelly situations, such as smelly gas and foul smelling stool.


Common Causes For Why Your Poop May Smell Like Sulfur

There are various reasons why your poop might smell like sulfur, and we’ll explore the most common culprits below.

high sulfur proteins in a circle around the word protein

You Are On A High-Protein Diet


Protein is an essential nutrient, but too much of it can cause a stink—literally.

When your body breaks down protein, it can produce sulfur-containing compounds, resulting in smelly poops and foul odor gas.


Recommended Protein Intake For Men And Women

To avoid protein overload and avoid bad-smelling stool, stick to the recommended daily intake: about 46 grams for women and 56 grams for men.


You Eat A Diet High In Sulfur-Rich Foods


Love garlic, onions, and eggs? These foods are packed with sulfur, and consuming them can make your poop smell like sulfur.

See our more extensive list above for more high sulfur-containing foods.

Also, see if you are getting too many in your diet. Don’t worry. You don’t have to swear off your favorite stinky foods.

Just be mindful of your intake and balance them out with other nutritious options.

Balancing your diet with eating foods lower in sulfur can help significantly.

I personally use a food journal through cronometer to track my daily food intake and nutrition. 


Gastrointestinal Infections


Sometimes, a sulfur smell in your poop can be a sign of an infection caused by a bacterial infection, viruses, or parasitic infections in your small intestine or digestive tract.


Diagnosing and treatment


If you suspect an infection, seeing a healthcare professional for proper diagnosis and treatment is essential. A doctor can order a stool testing kit to get a stool sample.

This stool testing kit will help diagnose any issues regarding bacterial infections, viruses, or parasitic infections that could be contributing to your problem.

Don’t try to self-diagnose and treat, as it could make matters worse.


Malabsorption issues


Malabsorption occurs when your body has difficulty absorbing nutrients from food.

This can lead to an overgrowth of sulfur-producing bacteria in your gut and, you guessed it, a smelly poop with a pungent odor.


10 Common Reasons Malabsorption Happens

  1. Digestive enzyme deficiencies: Conditions like pancreatic insufficiency, where the pancreas doesn’t produce enough digestive enzymes, can lead to malabsorption. The enzymes are crucial for breaking down fats, proteins, and carbohydrates.
  2. Celiac disease: An autoimmune disorder triggered by ingesting gluten, a protein found in wheat, barley, and rye, which can damage the small intestine’s lining, impairing nutrient absorption.
  3. Inflammatory bowel disease (IBD): Conditions like Crohn’s disease and ulcerative colitis cause chronic inflammation in the gastrointestinal tract, which can disrupt nutrient absorption.
  4. Small intestinal bacterial overgrowth (SIBO): An overgrowth of bacteria in the small intestine can interfere with the absorption of nutrients by damaging the intestinal lining or consuming nutrients themselves.
  5. Lactose intolerance: The inability to digest lactose, a sugar found in milk and dairy products, can lead to malabsorption, particularly of calcium and other nutrients in dairy.
  6. Food allergies and intolerances: Certain food allergies or intolerances (such as gluten) can cause inflammation or damage to the intestinal lining, resulting in malabsorption.
  7. Gastrointestinal surgery: Surgeries such as gastric bypass, which alter the structure of the gastrointestinal tract, can affect nutrient absorption.
  8. Parasitic infections: Infections caused by parasites like Giardia can damage the intestinal lining and impair nutrient absorption.
  9. Short bowel syndrome: A condition where a significant portion of the small intestine is removed or dysfunctional, limiting its ability to absorb nutrients.
  10. Certain medications: Some medications, like antibiotics or antacids, can interfere with nutrient absorption by affecting the balance of gut bacteria or altering the stomach’s acidity.

Impact Of Malabsorption On The Smelly Stools You Are Noticing

Malabsorption-related sulfur smells can vary in intensity but are generally accompanied by other symptoms like foul smelling diarrhea, bloating, and abdominal pain.


Irritable bowel syndrome (IBS)


Irritable Bowel Syndrome (IBS) is a common gastrointestinal disorder that affects the large intestine (colon).

IBS is characterized by a group of symptoms that occur together, including stomach pain, cramping, bloating, gas, issues with how you digest food, blood in your stool, changes in bowel habits, such as smelly diarrhea, constipation, or alternating between the two.

In addition, a stool smell with a sulfur aroma is common with IBS.


The Connection Between IBS And Sulfur-Smelling Stools

IBS can cause an imbalance in gut bacteria, leading to increased production of sulfur compounds and, consequently, smelly poop.

Suppose you’re experiencing IBS symptoms along with sulfur smelling poop. In that case, it’s essential to consult a healthcare professional for proper diagnosis and management.


What To Do When Your Poop Smells Like Sulfur


Putting the finger on what is causing your foul smelling stool. Below we outline some of the ways to help eliminate this issue:


Assess Your Diet


It would be best to start by assessing your diet and identifying potential triggers for your foul stool smells.

Then, keep a food diary to track what you eat and any changes in your poop’s aroma.


Adjust Your Protein And Sulfur-Rich Food Intake


If you find certain foods causing the smell, consider cutting back on them or temporarily eliminating them from your diet to see if the situation improves.


Over-The-Counter Remedies To Try


While sulfur smelling poops are oftentimes not anything to worry about, it is an issue you would probably like to get a grasp on.

Below are some at-home things you can try to help eliminate this problem.




Probiotics, aka the good bacteria, can help balance your gut flora and reduce the sulfur smell.

Try incorporating probiotic-rich foods or supplements into your diet.


Digestive Enzymes


Digestive enzymes can aid in breaking down proteins and other nutrients, potentially reducing the production of sulfur compounds.

Consult your healthcare professional before starting any supplements, though.


Preventive Strategies To Implement


Taking preventive action can help you starve off the unpleasant smell you are experiencing with your stools.


Work On A Balanced Diet


A fiber-rich diet can help promote regular bowel movements and reduce the chances of sulfur smelling stool.

Ensure you include plenty of fruits, vegetables, whole grains, and legumes in your meals.


Stay Hydrated


Drinking enough water is essential for maintaining a healthy digestive system. Stay hydrated to help prevent constipation and other gut issues.


Get Regular Exercise


Physical activity can improve your gut health and help regulate bowel movements. Aim for at least 150 minutes of moderate exercise per week.


Work On Your Stress Management


We all have it in our lives, which is hard to avoid, but stress can impact your gut health and contribute to digestive issues. Incorporate stress-reducing activities like meditation, yoga, or deep breathing exercises into your routine.


When To Consult A Healthcare Professional


If your sulfur stool smells persist despite your efforts, or if you’re experiencing other symptoms like pain, diarrhea, or weight loss, it’s time to seek medical advice.


Diagnostic Tests And Treatments


Your healthcare professional will likely run a blood test to determine the underlying cause and recommend appropriate treatments or lifestyle changes.

Your doctor may order other tests for more severe diseases. For example, they will typically run tests for celiac disease, inflammatory bowel disease, ulcerative colitis, and IBS to rule out what may be causing you issues.




Poop smelling of sulfur may not be the most pleasant topic, but understanding its causes and remedies is crucial for your well-being.

From adjusting your diet to seeking medical advice when necessary, there are several steps you can take to tackle this stinky issue head-on.

Please don’t be embarrassed or shy away from addressing the issue; it’s all part of being human.

With the proper knowledge and approach, you’ll be well on your way to a happier, healthier gut—and a less sulfur-scented bathroom experience, your significant other will thank you!


Frequently Asked Questions


What causes poop to smell like sulfur?


Some common causes of sulfur-smelling poop include a high-protein diet, consumption of sulfur-rich foods, gastrointestinal infections, malabsorption issues, and irritable bowel syndrome (IBS).

In addition, factors like stress, dehydration, and lack of exercise can also contribute to gut imbalances, potentially leading to smelly poop.


Can certain foods cause foul smelling poop?


Yes, sulfur-rich foods like garlic, onions, eggs, and cruciferous vegetables can make a stool smelling like sulfur.

Consider moderating your consumption of these foods and balancing your diet with other nutrient-rich options to minimize the smell.


When should I see a doctor about my poop smelling like sulfur?


It’s essential to consult a healthcare professional if your stools continue to smell like sulfur despite dietary changes or if you’re experiencing other symptoms such as abdominal pain, diarrhea, weight loss, or fever.

A medical professional can diagnose the underlying cause and recommend appropriate treatments or lifestyle changes.


Can probiotics help reduce the smell of sulfur in my poop?


Probiotics can help balance gut flora and potentially reduce the sulfur smell in your poop. They can be found in fermented foods like yogurt, kefir, sauerkraut, and kimchi or as supplements.

However, it’s always a good idea to consult your healthcare professional before starting new supplements.


How can I prevent stool odor that smells of sulfur?


To prevent sulfur smelling poop, maintain a balanced diet that includes fiber-rich foods, stay hydrated, exercise regularly, and manage stress.

Additionally, be mindful of your intake of high-protein and sulfur-rich foods, which can contribute to the smell.


Can medications cause a foul smelling stool?


Yes, some medications can affect your gut health and cause a foul smelling stool.

For example, antibiotics can disrupt the balance of gut bacteria, leading to an overgrowth of sulfur-producing bacteria.

If you suspect your medication might be causing the smell, consult your healthcare professional for guidance.


Does a stool smelling of sulfur indicate a serious health issue?


While a sulfur poop smell can be uncomfortable and concerning, it’s not always indicative of a serious health problem.

It can result from dietary factors or temporary imbalances in gut bacteria.

However, suppose the smell persists or is accompanied by other symptoms.

In that case, it’s essential to consult a healthcare professional for an accurate diagnosis and appropriate treatment.


Are there any home remedies for the sulfur poop smell?


Some home remedies that may help alleviate the sulfur poop smell include adjusting your diet by reducing high-protein and sulfur-rich foods, increasing fiber intake, and staying hydrated.

Over-the-counter remedies like probiotics and digestive enzymes might also help. However, it’s crucial to consult a healthcare professional if the issue persists or worsens.


Can stress contribute to a smelly stool?


Stress can negatively impact gut health and contribute to digestive issues, including sulfur stool smells.

However, implementing stress management techniques like meditation, yoga, deep breathing exercises, or engaging in hobbies can help alleviate stress and improve your gut health.


How long does it take for dietary changes to improve the smell of my poop?


The time it takes for dietary changes to improve the smell of your poop can vary from person to person.

Generally, you might notice improvements within a few days to a few weeks after making dietary adjustments.

However, keep in mind that everyone’s body is different, and factors like individual metabolism and gut health can influence the time it takes to see results.




Are You Getting Enough Protein? (2022, November 22). WebMD. https://www.webmd.com/food-recipes/protein

Cohen, M. (2021, May 13). IBS and Rectal Bleeding Causes | The IBS & Gut Health Clinic. The IBS & Gut Health Clinic. https://ibsguthealthclinic.co.uk/ibs-and-rectal-bleeding-causes/

What is inflammatory bowel disease (IBD)? | IBD. (2022, April 13). What Is Inflammatory Bowel Disease (IBD)? | IBD. https://www.cdc.gov/ibd/what-is-IBD.htm

What Causes Foul-Smelling Stools? (n.d.). Foul-Smelling Stools: Causes, Signs, and Prevention. https://www.healthline.com/health/stools-foul-smelling