Nutrition

A therapeutic diet is a normal diet modified to meet the nutritional and medical needs of a patient. Changes may involve calories, nutrients, texture, consistency, meal frequency, or restrictions such as reduced sodium or sugar. It is planned to support treatment and recovery, usually with professional guidance.

Obesity commonly develops when energy intake is greater than energy expenditure over an extended period, although genetics, metabolism, environment, and medical factors may also contribute. It is therefore generally classified as a form of overnutrition, meaning excessive energy or nutrient intake. Option B is correct; obesity is not simply water deficiency or lack of salt.

Physical activity determines how much energy the body uses. A person who exercises or performs heavy work generally needs more energy than someone who is sedentary, although individual needs also depend on age, sex, body size, and health. Therefore, activity level must be considered when deciding total energy and food portions in a diet plan. It does not merely determine taste or make every person’s diet identical.

A balanced diet supplies energy, protein, healthy fats, vitamins, minerals, fibre, and fluids in suitable proportions for the person’s needs. In clinical nutrition, the diet may need modification for a disease, but it should still support healing, body functions, and nutritional adequacy. It complements medical treatment and does not always replace medicines. Therefore, A is correct.

Dietary fibre, especially when combined with adequate fluid intake, increases stool bulk and can help make bowel movements easier. Whole grains, pulses, fruits, vegetables, nuts and seeds are common sources. Fibre cannot immediately unite a fractured bone, change hair colour or cause the body to produce vitamin D; vitamin D production mainly involves skin exposure to ultraviolet light. Thus, option A is correct.

Anthropometry is the measurement of the human body. Common nutritional anthropometric measurements include height, weight, body mass index, mid-upper-arm circumference, and sometimes skinfold thickness. These measurements help assess growth, body composition, undernutrition, and changes in nutritional status when interpreted with age, sex, and clinical information.

Overweight can develop when energy intake regularly exceeds energy expenditure, although genetics, hormones, medicines, sleep, stress, environment, and activity also influence body weight. It is a nutrition-related concern because the quality and quantity of food contribute to energy balance and health risks. Overweight is not merely a clothing issue and should be discussed without stigma. Therefore, option A is correct.

Limiting excess sugar can support healthier eating habits because foods and drinks high in added sugar may provide many calories but relatively few essential nutrients. Frequent excessive intake can contribute to dental caries, unwanted weight gain, and poor overall diet quality. Sugar need not be eliminated completely, but it should be consumed moderately within a balanced diet.

Correcting inaccurate beliefs about food, nutrients, diet, or disease is an important part of nutrition education. The educator should provide evidence-based information in clear language, listen to the person's concern, explain why the belief may be misleading, and suggest practical alternatives. The aim is not merely to give facts, but to support informed and healthier food choices.

The energy content of food may be increased when illness, fever, infection, tissue repair, or recovery raises the body’s energy requirement. Energy-dense foods can provide more calories in a smaller volume, which is especially useful when appetite is poor. The exact increase should be planned according to the patient’s condition by a qualified professional.

Edema is an abnormal accumulation of fluid in body tissues. This extra fluid can increase a patient’s measured weight even when muscle or fat stores are low, making weight appear normal or higher than expected. Nutritional assessment should therefore also consider diet history, clinical signs, body measurements, laboratory findings, and the underlying disease.

Nutrient enrichment increases the energy or nutrient value of a food without necessarily increasing its volume. It can be useful for a patient with poor appetite, early satiety, swallowing difficulty, or increased nutrient needs who can consume only a small amount. Enrichment should be planned carefully so that it suits the patient’s disease, tolerance, and prescribed diet.

The quantity of food in a therapeutic diet may be increased or reduced according to the patient’s age, activity, disease condition, appetite, and energy requirement. Correct portion size helps supply adequate nutrients without overloading the body. Therefore, option C is correct because changing quantity is done to meet the patient’s energy and nutritional needs, not for any unrelated household or personal purpose.

Unintended weight loss may indicate inadequate food intake, poor absorption, increased nutrient needs, illness-related changes, or another form of nutritional risk. It should be assessed along with appetite, symptoms, body measurements, and disease history rather than ignored. Therefore, option B is correct because weight change can provide important information about a patient’s nutritional status.

During nausea, strong food odours may worsen the unpleasant sensation and reduce a patient’s willingness to eat. Using mild-smelling foods, serving food at a suitable temperature, and ensuring ventilation may improve acceptance, although the underlying cause still requires appropriate care. Therefore, option D is correct because reducing strong smell can help when nausea is present.

Including suitable local foods can make a diet practical, affordable, culturally acceptable, and easier to maintain. Locally available foods may be fresher and less expensive, and they can provide important nutrients when selected from varied food groups. However, local food is not automatically nutritious; hygiene, quality, preparation, and dietary balance must also be considered. Therefore, option B is correct.

A quality diet provides appropriate amounts and variety of nutrients while also being safe, hygienic, acceptable, and suitable for the person’s health condition. Quality is therefore broader than taste or appearance alone. It includes nutritional value, food safety, suitability, and practical acceptability. Hence, option D is correct.

For a patient, a balanced meal is not simply a standard meal containing every food group in equal amounts. It provides appropriate energy, protein, fluids, vitamins, minerals, and other nutrients while considering the disease, treatment, age, tolerance, allergies, and nutritional goals. Thus, balance means adequacy and suitable proportions adapted to the individual clinical condition.

Unintentional weight loss and reduced food intake are important warning signs of possible malnutrition. They may indicate inadequate energy or protein intake, illness-related metabolic stress, swallowing difficulty, poor appetite, or problems with digestion and absorption. Such findings should prompt timely nutrition screening and, when indicated, a complete assessment rather than being ignored.

Nutrition assessment uses several complementary methods. A blood test provides biochemical information about markers in the body, whereas a diet recall records dietary intake and represents a dietary or food-consumption assessment. Height and weight are both anthropometric measurements, so option A does not show two different assessment categories. Options C and D are not valid pairs of assessment methods.