Basic concepts

The main aim of clinical nutrition is to provide safe and appropriate nourishment according to a patient’s disease, nutritional status, symptoms, and treatment needs. It may help maintain strength, correct deficiencies, support recovery, and reduce complications. It is not limited to taste or food cost.

A diet record is a written account of the foods and beverages consumed over a specified period, often including approximate portions, preparation methods, timing, and sometimes supplements. It helps a nutrition professional assess energy and nutrient intake, identify excesses or deficiencies, notice eating patterns, and plan realistic advice. It is therefore a basic tool for dietary assessment; the other options are unrelated to nutrition.

Follow-up is an essential part of nutrition care because it shows whether the diet plan is producing the desired results. The professional can review symptoms, intake, weight, laboratory information, tolerance, and adherence, then modify the plan when necessary. Therefore, option C is correct.

A calorie is a unit used to express the energy supplied by food. In nutrition, the energy released when carbohydrates, proteins and fats are metabolised is reported as food energy, commonly in kilocalories. Calorie content is not determined simply by the colour, sound or physical weight of a food. Therefore, energy is the correct answer and is the key concept tested by this question.

Practicality means that a diet plan can realistically be followed in everyday life. It should consider the patient’s disease, appetite, food preferences, culture, income, availability of ingredients, cooking facilities and ability to prepare or consume the food. A nutritionally correct plan is ineffective if the patient cannot understand or follow it.

In the Nutrition Care Process, assessment is followed by nutrition diagnosis, which means identifying and describing a nutrition problem that a dietitian or nutrition professional can address. Assessment collects and interprets information such as food intake, anthropometric data, biochemical results, clinical findings, and personal history. The identified problem then guides intervention, monitoring, and evaluation.

Safe food selection in clinical nutrition must consider the patient’s medical condition, nutritional requirements, allergies, ability to digest or swallow food, and the hygienic quality of the food. Proper handling, storage, preparation, and serving help prevent infection and contamination. The colour of clothes, room decoration, and game time have no nutritional or safety relevance. Therefore, option A is correct.

Protein supplies amino acids needed to build and repair body tissues. During recovery from illness, injury, surgery, or infection, the body may need additional protein to support healing, maintain muscle, and produce enzymes and immune-related substances. Adequate intake must be individualized. Therefore, option B is correct.

Seasonal consideration helps the dietitian select foods that are locally available, fresher, less expensive, and more acceptable to the patient and family. It can also support variety through appropriate seasonal fruits and vegetables. Seasonal planning must still follow the patient’s disease-related restrictions, nutrient requirements, food safety needs, and personal tolerance.

“Eat good food” is unclear because it does not identify the foods to choose, the amount, timing, preparation method, or the health goal. Effective dietary advice should be specific, understandable, measurable, and realistic, such as limiting pickles to reduce salt or specifying a serving of pulses. Therefore, option B is the most ambiguous advice.

Changing the cooking method is a practical form of diet modification. Replacing deep-frying with steaming, boiling, baking, grilling, or shallow cooking can reduce added fat while retaining the food's useful nutrients. The method may also be adjusted to control texture, spices, or digestibility. It does not mean removing nutrition or ignoring hygiene, so option A is correct.

Clinical nutrition records may include dietary intake, symptoms, body weight, biochemical values, feeding tolerance, and relevant observations. Comparing these records over time helps the healthcare team determine whether the patient is following the plan, receiving adequate nutrients, and improving. Records also support communication and evidence-based changes in care. Thus, option B is correct.

Water provides no dietary calories because it is not oxidised as an energy-yielding nutrient. Nevertheless, it is essential for transporting nutrients, regulating body temperature, supporting digestion, removing wastes and maintaining blood volume. Fat, carbohydrate and protein can provide energy, so water is the correct answer in option C.

Local foods are often available within the community and may cost less because transport, storage and distribution distances are reduced. They can also suit local food habits and seasonal conditions. Their nutritional value still depends on the particular food and preparation, but accessibility and affordability make option B correct.

Water is the principal component of body fluids and is essential for maintaining fluid balance. It helps transport nutrients and waste products, supports digestion, lubricates tissues, regulates body temperature through sweating, and provides the medium for many chemical reactions. Although electrolytes such as sodium and potassium also regulate fluid distribution, water is the most direct answer among the given options. Therefore, option A is correct.

Severe vitamin C deficiency can cause scurvy. Vitamin C is needed for collagen formation, wound healing, healthy gums, skin, blood vessels, and support of normal immune function. A deficiency may lead to bleeding gums, easy bruising, poor wound healing, and weakness. Therefore, option D is correct; citrus fruits and several vegetables are useful sources.

A diet history or diet record provides information about the foods and drinks a patient consumes, the approximate amounts, meal timing, appetite, food preferences, and sometimes difficulties with eating. This helps a nutrition professional compare actual intake with the patient’s energy and nutrient needs and identify possible deficiencies, excesses, or unsuitable eating patterns. Therefore, it is an important part of dietary assessment.

Water is an essential component of nutrition and must be considered while planning a diet. It helps maintain fluid and electrolyte balance, regulate body temperature, transport nutrients, support digestion, remove waste, and enable normal cellular reactions. The exact requirement may change with age, illness, climate, activity, and medical restrictions, so hydration should be planned carefully.

A hospital diet prescription communicates the patient's required diet to the kitchen and care team. It may state the diet type, texture, energy or nutrient restrictions, allergies, supplements and feeding instructions. Accurate communication helps prevent inappropriate food, supports treatment and protects patient safety.

Diet means the total pattern of foods and beverages a person consumes regularly, usually over a day or longer period. It may include cereals, pulses, vegetables, fruits, milk, meat or alternatives, fats, water and other drinks. A diet can be healthy or unhealthy depending on its variety, quantity, quality and balance. It does not mean only water, medicine, or looking at food.

Nutrients are chemical components of food that the body requires for energy, growth, tissue repair, regulation and protection. They include carbohydrates, proteins, fats, vitamins, minerals and water. A plate, utensil or colour may be associated with food, but none of these is itself a nutrient. Thus, option C is correct.

Dietary fat is a concentrated source of energy and is stored as an energy reserve in the body. It also provides insulation and helps reduce heat loss, supports cell membranes, and assists absorption of fat-soluble vitamins A, D, E and K. Therefore, option C states two important functions, although fat has additional roles as well.

Vitamins are micronutrients required in small amounts. They regulate many metabolic processes, support immunity, vision, blood formation, bone health and tissue maintenance. They do not primarily supply calories like carbohydrates and fats. In school nutrition classification they are therefore called protective nutrients, making option D correct.

Minerals perform structural and regulatory functions in the body. Calcium and phosphorus help build bones and teeth, iron supports haemoglobin and oxygen transport, while sodium and potassium help maintain fluid balance and nerve and muscle activity. Thus, option A correctly identifies important mineral functions.

Water is an essential nutrient because it forms a major part of body fluids and supports digestion, absorption, circulation, temperature regulation, waste removal and chemical reactions. It does not provide energy or sweetness, but life cannot continue without adequate hydration. Therefore, option B is correct.