Complex sentence: Cooking is essential prior to consumption to inactivate the toxic components; in this chaya is similar to cassava, which also contains toxic hydrocyanic glycosides and must be cooked before being eaten.
Split into simpler sentences: Cooking is essential prior to consumption to inactivate the toxic components. In this respect chaya is similar to cassava, which also contains toxic hydrocyanic glycosides and must be cook before being eaten.