Fit and Healthy Lifestyle

Preventing bad breath begins with good oral hygiene but it also
includes staying properly hydrated. Dry mouth and bad breath go
hand-in-hand because saliva helps control the bacteria responsible for
halitosis and gum disease.
If you are dehydrated and have Xerostomia (dry mouth), then the
bacteria population will grow quicker and make problems with halitosis
worse.

Bacteria tend to thrive off of sugar which is why common dental health
problems like tooth decay are made more likely when consuming high
levels of candy and similar products. Diabetics tend to have blood
sugar spikes where levels increase above their normal range and this
will cause an increase in bacteria levels and elevate odds for
developing severe periodontal disease.