Even after thorough oral cleaning, garlic's volatile sulfur compounds like allyl methyl sulfide can linger in the bloodstream and eventually be exhaled.
Similar to garlic, onions contain sulfur compounds that get absorbed into the bloodstream and exhaled through the lungs.
Known for its strong odor due to compounds like alcohols, esters, and sulfur, durian can cause significant dietary-related halitosis.
Broccoli, cabbage, and Brussels sprouts contain volatile sulfur compounds that give them their distinct aroma and can contribute to bad breath.
Strongly aromatic spices may contribute to bad breath, with some triggering heartburn and gastric reflux, conditions that can worsen halitosis.
Foods rich in protein, like meat, seafood, and dairy products, can contribute to bad breath when bacteria in the mouth break.
Dairy can also lead to bad breath due to sulfur-containing amino acids released during breakdown in the mouth.
Sugary foods and drinks promote bacterial growth in the mouth, leading to acid production that can contribute to tooth decay and bad breath.
Coffee contains sulfur compounds and can dry out the mouth, exacerbating conditions that contribute to bad breath.