Complex sentence: Hari has no qualifications in nutrition or food science (she is a former management consultant who studied computer science) and that lack of training often leads her to misinterpret peer-reviewed research and technical details about food chemistry, nutrition and health.
Split into simpler sentences: Hari has no qualifications in nutrition or food science, as she is a former management consultant who studied computer science. This lack of training often leads her to misinterpret peer-reviewed research and technical details about food chemistry, nutrition, and health.