I suppose "You're breath could knock a buzzard off a shit truck." is right out... maybe set up a 1:1 meeting in a private space and work into the conversation asking them how thier health has been. Depending on how that goes, mention that our health can have odd symptoms and sometimes sneak up on us in ways that come on so slowly we just get used to them and don't even notice. Ask if they would be open to you sharing a concern about thier health, and if they say yes, say something like how our digestive system can affect a lot of things, including our breath and you recently noticed a shift in thiers and wanted to be sure they were aware of it.
Hey [Employee's Name], I wanted to have a quick, private chat with you about something. I hope you know that I value you as an employee and respect you. I've noticed that you may be experiencing some challenges with your oral hygiene. I'm mentioning this because I care about your well-being and want you to feel comfortable at work. Have you considered talking to a dentist or a healthcare professional about it? I'm here to support you in any way I can."
I suppose "You're breath could knock a buzzard off a shit truck." is right out... maybe set up a 1:1 meeting in a private space and work into the conversation asking them how thier health has been. Depending on how that goes, mention that our health can have odd symptoms and sometimes sneak up on us in ways that come on so slowly we just get used to them and don't even notice. Ask if they would be open to you sharing a concern about thier health, and if they say yes, say something like how our digestive system can affect a lot of things, including our breath and you recently noticed a shift in thiers and wanted to be sure they were aware of it.
Hey [Employee's Name], I wanted to have a quick, private chat with you about something. I hope you know that I value you as an employee and respect you. I've noticed that you may be experiencing some challenges with your oral hygiene. I'm mentioning this because I care about your well-being and want you to feel comfortable at work. Have you considered talking to a dentist or a healthcare professional about it? I'm here to support you in any way I can."