Hello and Welcome to HCM,
Thanks for writing to us.
It can be caused by variety of things including diet, medication, poor
oral hygiene, and diseases or conditions such as diabetes, GERD,
lactose intolerance,
gum disease, and more. Maintaining proper oral health can help reduce or eliminate bad breath.
brush at least twice a day with fluoride toothpaste,
brush the teeth after meals,
brush the tongue,
replace your toothbrush every two to three months,
use dental floss regularly,
see your
dentist at least twice a year.
Hope this helps you.
Wishing you good health...
Regards.