A dietary assistant works in a medical care facility, providing nutritional aid to patients, preparing meals and serving food in a dining hall or in client rooms. Your duties include helping to prepare weekly menus, addressing any special dietary needs a patient may have, and maintaining inventory in the kitchen. Depending on your patients, you may also take notes on the amounts and kinds of food a client consumes to provide dietitians and overseeing physicians with data to aid in diagnosis and care. A career as a dietary assistant requires at least a high school diploma and some previous job experience in the food industry. Customer service skills, working knowledge of health codes, safe food handling practices, and an understanding of dietary principles will set you apart from other candidates.