They are potato roots, not food safety related.
Lay’s claims: “We were in contact with the consumer as soon as we received the information and conducted an internal investigation at the same time. The situation reported by the consumer was a case of potato rhizomes, which provide nutrients to the potato tubers as they grow, being a natural part of the potato itself, caused by a very few potatoes that have not shed their rhizomes due to maturity, and not involving any food safety.
As a conclusion, it is safe to have Lays!
