All human beings emit flatulence or gas on a daily basis, and while farting is perfectly normal, excess gas can lead to embarrassing situations and lingering odors that make socializing difficult or impossible. Let’s discover below, the foods that cause you flatulence with a bad smell.
Foods that give you flatulence with a bad smell
Foods that are rich in fiber , such as vegetables and legumes, nourish healthy and harmless gut bacteria , turning them into beneficial substances like vitamins and prebiotics, but have flatulence as a side effect. This is why going vegan or vegetarian can make people feel gas.
Smelly flatulence is caused by hydrogen sulfide , which makes farts smell like rotten eggs or cabbage. Some intestinal bacteria, such as Desulfovibrio and Desulfobulbus, produce hydrogen sulfide from amino acids in food, such as cysteine and methionine. And what foods make our flatulence smell so bad? Write down those that we now list for you since you may want to avoid them at specific times or limit them in your diet.
Cruciferous vegetables
Cabbage, broccoli, cauliflower, and other cruciferous vegetables are common foods that cause flatulence and gas. These plants release organic sulfur-containing compounds , called glucosinolates, when the leaves are cooked and / or chewed. Common cruciferous vegetables include:
- Broccoli
- Cabbage
- Cauliflower
- Dark green leafy vegetables (kale, collard greens, mustard greens, etc.)
- Swede
- Radish
- Turnips
Glucosinolates (and their breakdown products) have beneficial effects on the health of the human body. Studies show that a wide variety of gut bacteria transform glucosinolates into sulfate ions and ferrous ions, which can be further metabolized into hydrogen sulfide (which makes farts smell like rotten eggs) and sulfur, respectively.
On the positive side, glucosinolates feed probiotic bacteria that naturally reside in the human gut, such as Lactobacillus and Bifidobacterium. On the other hand, a gut with too many sulfate-reducing bacteria, such as Desulfovibrio, can increase hydrogen sulfide production, leading to really smelly farts.
Milk and dairy products
Milk and dairy products are foods that cause foul-smelling flatulence if you have untreated lactose intolerance. Lactose is a sugar present in milk that is normally broken down by an enzyme called lactase.
When the body produces insufficient lactase, dairy products can trigger diarrhea, bloating, abdominal pain, and extreme, very smelly flatulence 30 minutes to two hours after ingestion. Lactose intolerance can occur at any age and a person may continue to consume lactose (and suffer from it) without actually realizing that they have an intolerance problem.
Probiotic gut bacteria, such as Lactobacillus, can metabolize and absorb lactose. This can decrease the symptoms of lactose intolerance, especially in people whose diets contain an indigestible flatulent carbohydrate, known as galactooligosaccharide (GOS), which is found in beans.
Beans and legumes
Beans and legumes, such as lentils, are foods that cause very bad smelling flatulence and bloating. They contain galactooligosaccharides (GOS) and fructans, which are dietary fibers that cannot be broken down by human enzymes. Instead, they are fermented by intestinal bacteria in the large intestine.
How beans and legumes affect flatulence depends on your gut bacteria – some people’s microbes produce more gas than others. Excessive wind is common when people begin to introduce these foods into their diet, but this can improve over time.
People with irritable bowel syndrome are more susceptible to digestive pain caused by gas, so some dietitians recommend following a low-FODMAP diet, which excludes foods that contain fructans and galactooligosaccharides, such as beans and legumes.
High protein diet
Really smelly farts are caused by high protein diets such as the ketogenic diet and the carnivore diet, since these are packed with foods that cause smelly flatulence. Beef, eggs, pork, fish, and poultry are rich in sulfur, which can be converted into hydrogen sulfide by intestinal bacteria, producing a smelly gas that, as mentioned, is reminiscent of rotten eggs. .
Protein supplements may also contain ingredients that cause flatulence and encourage excess wind. For example, many protein shakes are based on whey (a liquid derived from milk), which can affect people with lactose intolerance. Additionally, protein bars and protein shakes also contain low calorie sweeteners (sorbitol, mannitol, lactitol, and xylitol) and fiber additives that are known to cause flatulence. In particular, many protein bars use inulin, a highly gaseous, indigestible carbohydrate, as a source of fiber.
