Why Do Farts Smell Unpleasant? How Can You Make Them Less Smelly?

Farting, also called flatulence, is a normal part of digestion. Put in simple terms, it refers to the process of passing the gas from our digestive system out of the body through the anus. While all farts have a foul smell, there are a few which particularly unpleasant. If you are wondering why your fart smells extra bad, it might be due to particular reasons. One prime reason could be hydrogen sulfide, a gas produced by bacteria breaking down food in your intestines. This sulfur-based gas creates a distinct "rotten egg" odour. While occasional smelly farts are common, certain factors can increase the intensity of the smell or signal an underlying issue.

Here Are Common Reasons Behind Smelly Farts

Bacteria Build-Up: Your gut is home to bacteria that help break down food. Some people have bacteria that produce more gas or smellier gas, leading to more intense odours.

Food Intolerances: Certain sugars, such as fructose (found in fruits and honey) and lactose (in dairy), may not fully digest in some people. When undigested, these sugars are fermented by gut bacteria, resulting in excess gas.

High-Fiber Foods: While fibre is essential for digestion, consuming too much can lead to excess gas. Fibre is not fully digested by your body and ferments in the colon, producing gas.

Constipation: When stool remains in the colon longer than usual, bacteria continue to break it down, increasing gas production. Staying hydrated and exercising can help prevent constipation.

Medicines: Some medications can disrupt gut function, leading to increased gas. The impact varies between individuals, so it's important to discuss any concerns with a healthcare provider.

FODMAPs: Certain fermentable carbohydrates, such as those found in beans, dairy, and certain fruits, are not fully absorbed in the small intestine and can cause excessive gas when broken down by bacteria in the colon. People with irritable bowel syndrome (IBS) are especially sensitive to these foods.

Infections and Diseases: Smelly farts can sometimes indicate a health condition. Abdominal pain, changes in bowel habits, or persistent symptoms may signal issues like celiac disease, IBS, or bowel obstructions. If you experience these symptoms, consult a healthcare provider.

Here's How You Can Reduce Smell Of Farts

The most common advice any healthcare practitioner would give is to make dietary changes. Here are other things you can do to reduce the smell of farts:

You can start by adjusting your diet and swallowing less air to help alleviate gas symptoms, including smelly farts. For example, avoiding certain foods or eating small, more frequent meals may reduce the number of bacteria that produce odour.

Keeping a food diary can help you figure out what foods affect you. Also, you have to deduce ways to swallow less air between and during chewing. For example, avoid drinking beverages with a straw and sit down while you eat. Eating smaller, more frequent meals instead of three large ones may help, too.15

Certain medicines and supplements may help, too. For example, Beano tablets help break down some complex carbs. Pepto-Bismol (bismuth subsalicylate) may reduce smelly gas. But, it is important to note that you must consult a healthcare provider before starting a new over-the-counter (OTC) medicine or supplement.

A few over-the-counter (OTC) medicines may relieve gas. Check with a healthcare provider before using any of those medicines. They can ensure that those medicines are safe for you, considering your health or other drugs you may take.

When To See A Doctor?

If you have other symptoms along with smelly farts, such as abdominal pain, constipation, fever, or vomiting, you may have a medical issue that needs treatment. Consult with a healthcare provider if you have any questions or concerns about flatulence or the smell of your gas.