The Enforcement Rules of Dietitian Act Article 3

Where the dietitian certificate is destroyed or lost, the dietitian shall submit a completed application form together with the required processing fee to the competent central authority to process the reissuance of a new certificate.Where the dietitian certificate is damaged, the dietitian shall submit a completed application form and the original certificate together with the required processing fee to the competent central authority to process the certificate replacement.
中文原文 營養師法施行細則第3條
營養師證書滅失或遺失者,應填具申請書,並檢附證書費,向中央主管機關申請補發。
營養師證書損壞者,應填具申請書,並檢附證書費,連同原證書,向中央主管機關申請換發。

English translation for reference only; the Chinese text prevails. Not legal advice.