Dr. Mary Grace Pe Lim-Calalan is a licensed pharmacist and physician, holding a BS in Pharmacy and a Doctor of Medicine from the University of Santo Tomas. She is a Diplomate of the International Board of Lifestyle Medicine and a member of the Philippine College of Lifestyle Medicine, ranking third in the Lifestyle Medicine Diplomate Exam in February 2020.

Currently, she serves as a Lifestyle Medicine Specialist at Adventist Hospital Palawan. She previously worked as Medical Officer 4 at the City Health Office, Puerto Princesa (May 2021–January 2024). Since March 2020, Dr. Lim-Calalan has been an active Lifestyle Medicine wellness speaker, continuously advocating for healthy lifestyle choices.