Can you get bad breath from dehydration?

A major cause is decreased saliva. ... Chewing food increases saliva in the mouth. When you are not eating, saliva decreases and bacteria growth increases, causing bad breath. When you are dehydrated. read more

While mild dehydration may be just uncomfortable, more severe dehydration can lead to blood clots, seizures, and other potentially fatal complications. Clearly, severe dehydration must be treated promptly, but even mild dehydration can have adverse effects on mood and energy. read more

It's easy to forget to drink water during a busy workday, but at the end of the day you may find people standing unusually far from you when you open your mouth. "Dehydration can give you bad breath," says Marshall Young, DDS, a dentist in Newport Beach, Calif. "Saliva has important antibacterial properties. read more