GRAND RAPIDS, (WZZM) -- Twenty-six million Americans have diabetes.

Sean Lally, a nine year old boy,wrote a book to help other kids coping with the disease.

Lally started using a dog to help detect his diabetes. The dog can smell when his blood sugar is low or high.

Lally'sbook, "Fielder theSuper Dog," teachesotherchildren aboutdiabetes service dogs.

Lally named his dog Fielder after the Detroit Tigers player Prince Fielder. The boy plans to use the sales of the book tohelp otherchildren buy their specially-trained dogs, the cost of which canstart at$10,000.