Principles of environmental, personal, and food hygiene

Good hygiene during hand washing, cooking, storage, and serving prevents harmful microorganisms from entering the patient’s food. Patients may be weak or have reduced resistance to infection, so safe preparation is especially important. Hygiene does not remove calories or replace prescribed medicines; its main benefit is reducing infection risk.

Pureed food is often prepared for patients who may be weak, recovering, or more vulnerable to infection. Grinding and blending involve utensils, hands, water, and several handling steps, all of which can introduce harmful microorganisms if hygiene is poor. Clean hands, sanitized equipment, safe ingredients, proper cooking, and timely serving reduce contamination and help protect the patient. Therefore, option B is correct.

Small, specific, achievable goals make behaviour change manageable. For example, a person may add one fruit daily, replace a sugary drink, or reduce fried snacks on selected days. Each completed step builds confidence and reinforces adherence. Goals do not guarantee instant or permanent results; they support gradual, sustainable improvement with continued review.

Food hygiene includes safe purchasing, storage, preparation, cooking, serving, personal cleanliness, and prevention of cross-contamination. These practices reduce harmful microorganisms, chemicals, and physical contaminants that may cause food-borne illness. A clinical nutrition professional must understand hygiene to protect vulnerable patients and promote safe meals. Therefore, option C is correct.

An allergic reaction can be serious, so a dietitian needs to identify the triggering food and help the patient avoid it while choosing suitable alternatives. This supports safety and adequate nutrition, making option A correct.