TARRYTOWN, NY: Bayer Healthcare opened the consumer launch of its upgraded blood glucose meter, the Contour, with a youth-friendly spokesman for its diabetes division: Nick Jonas, part of the teen band Jonas Brothers.

The 15-year-old Jonas, who was diagnosed with diabetes at age 13, will be a spokesman for Bayer Diabetes Care. He will maintain a blog at www.nickssimplewins.com, a site launched by Bayer Diabetes that includes information about how Jonas cares for his diabetes.

Viewers can download the song "A ...