Wondering if you knew anything about the connection between meat consumption and halitosis?

Two people I know have the worst problem with bad breath. It is not a matter of dental hygiene as they are meticulous about that, even visiting the dentist four times a year.

The problem seems to be coming from their insides. They tell me that they have been heavy meat eaters for their entire lives. In addition, they eat very few vegetables save for a little iceberg lettuce.

Do you think that their diet could be the problem?