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Foods That Can Cause Bad Breath

Posted on 12/15/2023 by Weo Admin
A pile of sugary foodsBad breath, also known as halitosis, can be an embarrassing issue that affects many individuals. While oral hygiene is significant in maintaining fresh breath, certain foods can contribute to unpleasant breath odors. Therefore, you should know the meals that interfere with your mouth's odor. Read more now to know the foods that can cause bad breath:


Garlic is notorious for its strong and pungent aroma, which can linger on your breath long after consumption. After the digestion of garlic, it releases sulfur compounds into the bloodstream.

These compounds get to the lungs; they get exhaled, resulting in garlic breath. Brushing your teeth or using mouthwash may only provide temporary relief. This is because sweat pores also expel sulfur compounds.

Canned Fish

Canned fish, such as tuna or sardines, is another culprit behind bad breath. The strong smell associated with canned fish is primarily due to the breakdown of amino acids present in the fish.

These amino acids release volatile sulfur compounds, similar to those found in garlic, which can contribute to unpleasant breath. Additionally, the fishy odor can be challenging to eliminate, even with oral hygiene practices.


Although dairy products are a source of necessary nutrients, they can also cause bad breath. Milk, cheese, and other dairy products contain proteins that bacteria in the mouth break down.

This breakdown produces volatile sulfur compounds, resulting in an unpleasant smell. Also, lactose intolerance or dairy allergies can lead to digestive issues, contributing to bad breath.

High-Protein Food

Food like meat, poultry, and eggs can contribute to bad breath. The body breaks down protein-rich foods into amino acids.

When these amino acids get metabolized, they release sulfur compounds as byproducts, contributing to foul-smelling breath. Low-carbohydrate diets, which frequently call for higher protein intake, can worsen this effect. Contact our dentist today to know the other foods that cause bad breath.
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