Protein-rich beef can produce ammonia gas during digestion, while garlic and onions release sulfur compounds when chewed, leading to unpleasant breath.
Nu, 26, frequently experienced a feeling of something stuck in her throat, initially suspecting a sore throat. Doctors discovered a 1.5 cm tonsil stone and removed it endoscopically.
Ms. Quynh, 36, experienced bad breath and difficulty swallowing; doctors discovered an esophageal diverticulum that caused food to frequently become trapped.
Deficiencies in protein, vitamin A, B vitamins, iron, and zinc can lead to dry mouth and impaired salivary gland function, increasing the risk of bad breath.