I don't know precisely what the dogs are picking up on, but diabetic people's breath have a distinct smell that humans can notice, too.
It's causes by raised levels of ketones in the blood, which comes from the increased breakdown of fat when sugar is unavailable, either due to starvation or diabetes. Intense dieting, especially with a ketogenic diet (hence the name) can also cause it.
Gobbedyret t1_iud5i4t wrote
Reply to How does a dog detect low insulin levels? by DutchgirlAnonymous
I don't know precisely what the dogs are picking up on, but diabetic people's breath have a distinct smell that humans can notice, too.
It's causes by raised levels of ketones in the blood, which comes from the increased breakdown of fat when sugar is unavailable, either due to starvation or diabetes. Intense dieting, especially with a ketogenic diet (hence the name) can also cause it.