Keto question...

happywalking

I think protein takes longer to digest and stays in out digesting system may have to do with. 

Doug Salomon

Yes, I believe that can happen in some cases.

Don't kniw about it

Christine Asfeha

I've never heard that. Interesting though!

Micol Sinelli

Questo può capitare anche durante altri ripi di diete.. una dieta ipocalorica o squilibrata può alterare il metabolismo e causare quindi alito cattivo

If you’re in ketosis, you may notice your breath tastes metallic or has a chemical smell. Drinking plenty of water and lowering your protein intake may help reduce the taste and smell. So yes is the answer 

I've actually heard this too