Are Science Classes Part of the Registered Dietitian's Education?

Registered Dietitians are educated about food science as well as human sciences including biology and biochemistry. Dietetics is the study of the interactions between nutrition and health. So the Registered Dietitian, or RD for short, must learn the basic sciences of foods and of the human body.

Food science examines the physical, biological and chemical components of food; the nutrients found in food, and how food is safely prepared, processed, distributed, sold and labeled.

Registered dietitians learn how certain foods can promote health in individuals and populations, and how other food components--such as sodium and cholesterol--can contribute to chronic diseases like heart disease and high blood pressure.

Registered Dietitians also learn normal and therapeutic nutrition, by building on the basics of biology, physiology, and biochemistry. In order to understand what happens to food in the body, the dietitian learns about the body's organ functions, cell metabolism, and how foods are digested and absorbed.

Ultimately, foods we eat turn into the materials that build and maintain our body. So it is essential for the Registered Dietitian to know how the body normally functions, and then what changes happen in the state of a disease, illness, trauma or other abnormality.

Once we learn all about nutrition and dietetics, we can understand
- why certain foods are important: for instance, dairy products contain calcium, which is essential for strong bones as well as muscle contractions, nerve signals, and blood clotting

- why some foods are unhealthy in excess: one donut? No problem... three a day, now you're talking a lot of additional calories, fat and sugar which can lead to unwanted weight gain without the benefit of protein and vitamins

- what is the truth about carbohydrates: They break down to sugars after digestion, and these sugars are necessary for energy. In fact, every cell uses glucose to convert to energy so the body can move and carry out essential functions; some cells--like those in the brain and kidney--can only use glucose. RDs know that avoiding carbohydrates is not only unnecessary, but can really mess up your normal metabolism!

If the science of the human body, the science of food, and the interactions that occur every time we eat strikes your interest, you might enjoy a career as a Registered Dietitian! Keiser University in Port St. Lucie has a coordinated program in dietetics. This allows you to actually practice in the field after you complete classroom studies, all under the guidance of knowledgeable preceptors. Find out more today by clicking here!

Who Hires Registered Dietitians?

Registered Dietitians can work in many settings. In hospitals, RDs help assure patients are eating well, improving their nutritional status, and avoiding foods that can make them more ill.

Registered Dietitians teach individuals what foods are nourishing for their condition, and which foods might keep them from getting better, or even compromise their future health.

Registered Dietitians can also work in Food Service. They are trained to have knowledge of safe and sanitary food preparation practices. They plan and oversee food production in a hospital, nursing home, school, or even in a prison. Anywhere you see a large number of people being fed, you can bet a Registered Dietitian is involved in planning a healthy menu and making sure the food is prepared safely and properly.

Registered Dietitians also work in the school foodservice system.
There are many regulations involved in planning healthy menus for the children attending schools. They need to get the right amount of calories, protein, fruits, and vegetables, and all at a low cost to the schools in the county, while staying tasty enough for the kids to enjoy. If they won't eat it, they won't get the good nutrition their school breakfast and lunch provides!


In hospitals and nursing homes, dietitians make sure patients are getting nourishing meals and snacks, and eating what they receive. If a patient doesn't like the food, has a poor appetite, or has special nutrition needs, the Registered Dietitian will perform an individual assessment and make recommendations and substitutions so the person who is ill can get back to their healthy and happy life sooner.

If you think you might be interested in institutional food preparation, school food service operations, educating people to prepare and eat healthy meals, or helping improve the health and wellness of individuals or populations, you can become a registered dietitian at KeiserUniversity.