Article by: ALLIE SHAH , Star Tribune Updated: August 29, 2013 – 9:29 AM http://www.startribune.com/lifestyle/health/221529221.html A dog’s snout is a powerful weapon. So strong, in fact, that pooches trained to smell low blood sugar are being used to manage diabetes. For 27 years, Sarah Breidenbach had a foolproof way of knowing when her blood sugar level was dangerously low. Diagnosed with Type 1 diabetes as a child, she could spot the early warning signs — feeling shaky and anxious. Then one night, her internal detection system failed. While sleeping, her blood sugar level plummeted, causing a violent seizure that sent …