For those that care, new research is finding similar health risks from starch/sugar-based plastics (like PLA) as other petroleum-based plastics.
“The new research found damage to organs, changes to the metabolism, gut microbe imbalances that can lead to cardiovascular disease, and changes to glucose levels, among other health issues.”
Summarizing, the researchers found many of the same effects from “bioplastics” as they did regular plastics. They also noted the exposures to various plasticizers and other chemicals added to bioplastics are similar.