3. Foods you’ve eaten
Food affects the air you exhale, especially foods with strong aromatic flavors like onions and garlic. Enzymes found in saliva start the digestion process as soon as you start chewing food, but once the food is absorbed into the bloodstream, it’s transferred into the lungs and you breathe it out. Brushing, rinsing with mouthwash or sucking on a breath mint only help to mask these foul odors. Avoiding certain types of food like meat, sugar, high-fat and spicy foods, and dairy products can help eliminate bad breath.