Diet (NPO)dcast By dietitians and for anyone with interest in the field of nutrition and dietetics. Host Zak Kaesberg RDN records weekly discussions on topics such as anatomy and physiology, dietetics, coaching psychology, tube feeding, exercise, and cooking! Discussions will include sample CDR Exam question and review for RDs to Be! What's Eating You segment to hear about the Good, Bad, & and Ugly of cooking and recipes.