Md. Code, Health Occupations § 5–402

(a) Except as otherwise provided under this title, a person may not represent or imply to the public by use of the title “licensed dietitian-nutritionist”, by other title, by description of services, methods, or procedures that the person is authorized to practice dietetics in the State.

(b) Unless authorized to practice dietetics under this title, a person may not use the words or terms “dietitian-nutritionist”, “licensed dietitian-nutritionist”, “LDN”, “dietitian”, “licensed dietitian”, “D”, “LD”, “nutritionist”, “licensed nutritionist”, or “LN”.