What is the primary purpose of the Maryland Department of Health?

The primary purpose of the Maryland Department of Health is to oversee public health and provide health services to residents. This includes a broad range of responsibilities aimed at improving community health, preventing disease, ensuring access to health services, and promoting wellness among the state's population. The department's focus is on managing public health resources and programs that address various health issues, such as communicable diseases, chronic illnesses, maternal and child health, and health equity.

While some of the other options mention important aspects of health regulation, they do not encompass the main mission of the department. Regulating healthcare costs, enforcing nutritional guidelines, or conducting medical research are all important activities that may fall within the broader scope of health-related functions, but they do not capture the comprehensive role of the Maryland Department of Health in ensuring the well-being of the state's residents. The emphasis is on public health oversight and service provision, which aligns with the department's fundamental responsibilities.