AASDN Nutrition Specialist Exam The AASDN Nutrition Specialist Exam may be purchased by graduates of the 2 day, Nutrition for Professionals course or the home study course, Incorporating Nutrition. A sale code is required to purchase the exam. If you do not remember your sale code please call 800.617.4615.  The AASDN Nutrition Specialist exam is non-refundable and candidates have 6 months from date of purchase to complete the exam. $ 125.00               More Information