New Jersey has a dietetics practice act, but within it is an exemption that is very broad. Practitioners may never attempt to diagnose, treat, or cure, or give the impression that they may, or that they are in some way certified or licensed by the state.
Under “C.45:16B-8 Licensure required to provide medical nutrition therapy, exceptions” it states that the licensure requirement shall not be construed to:
“(8) prohibit any individual from providing nutrition information, guidance,
encouragement, individualized nutrition recommendations, behavior change management, coaching, assessments, weight control services, or other nutrition care services that do not constitute medical nutrition therapy as defined in section 3 of P.L.2019, c.331 (C.45:16B-3), provided that the individual does not hold himself or herself out as a licensed dietitian nutritionist or licensed nutritionist or as a provider of medical nutrition therapy.”