Final answer:
Dietitians are specialists who help people with dietary health changes, often working in healthcare settings to design nutrition plans for disease treatment and prevention.
Step-by-step explanation:
Specialists who help people make dietary changes and food choices to support health are known as dietitians. These professionals often work in healthcare facilities, designing nutrition plans to treat and prevent diseases, and may also work in nursing homes, schools, and private practices. To become a registered dietitian, one must earn at least a bachelor's degree in a related field and complete a supervised internship program as well as pass a national exam.