Received: 4 November 2019
Accepted: 5 October 2020
First Online: 14 October 2020
Ethics approval and consent to participate
: This study was approved by the Medical Research Ethics Committee, Ministry of Health, Malaysia (Approval Number: 14–380-20399).
: Not applicable.
: Z Harun is the Head of Nutrition of Penang State, a role that is responsible for the antenatal education in the Ministry of Health clinics in the state. All other authors declare no competing interest.