Balanced diet and Recommended Dietary Allowances

Correct answer: A. Daily energy and nutrient intake may decrease

Breakfast can contribute important energy and nutrients after the overnight fasting period. Skipping it may reduce total daily intake, cause hunger or tiredness in some people, and encourage less balanced choices later. Effects differ among individuals, but option A gives the relevant nutritional reason and is therefore correct.

Correct answer: B. Unhealthy eating habits and weight gain

A high intake of added sugar increases energy intake without providing many essential nutrients. Sugary foods and drinks can also replace nutritious foods and encourage an unhealthy eating pattern. When excess energy is consumed regularly, it may contribute to overweight and obesity. Thus, option B is the correct answer; excess sugar does not increase fibre or strengthen bones.

Correct answer: A. More nutrients in a small amount

Nutrient density describes how many beneficial nutrients a food provides in relation to the amount of energy, or calories, it contains. A nutrient-dense food supplies substantial vitamins, minerals, protein, fibre, or other useful nutrients in a relatively small portion. Fruits, vegetables, pulses, and many whole foods are examples. Hence, option A is correct.

Correct answer: B. When appetite is low

Small and frequent meals can be useful when a person has a poor appetite, feels full quickly, or cannot tolerate a large meal. Dividing the day’s food into several smaller portions may make eating easier and help improve total energy and nutrient intake. The meals must still be nutritious and safely prepared. Therefore, option B is correct.

Correct answer: A. Appetite, digestion, and chewing ability may change

Diet planning may need adjustment in old age because appetite, digestion, dental condition, chewing ability, activity level, medication use, and health conditions can change. A person may need nutrient-dense foods, suitable textures, adequate protein and fibre, and sufficient fluids, while some medical conditions may require dietary limits. Nutrient needs do not disappear, and there is no single diet suitable for every older adult.

Correct answer: C. High blood pressure

Excess salt, especially its sodium content, can cause the body to retain more fluid. This may increase the volume of blood and place additional pressure on blood-vessel walls, contributing to high blood pressure or hypertension in susceptible people. Therefore, limiting salt is an important part of a heart-healthy diet, although medical advice should be followed for individual conditions.

Correct answer: D. They may retain more nutrients and contain less added salt or sugar

Fresh fruits, vegetables, pulses, whole grains and other minimally processed foods can provide fibre, vitamins, minerals and other beneficial components. Highly processed products may contain large amounts of added sugar, salt, unhealthy fats or additives. Natural foods are not automatically perfect, but choosing them more often can support a balanced and healthier diet.

Correct answer: B. Growth and tissue repair may be affected

Protein supplies amino acids needed to build muscles, enzymes, hormones and other body structures. It is also important for repairing damaged tissues and supporting immunity. If the diet lacks adequate protein, children may show poor growth and any person may experience weakness, delayed healing or loss of body tissue. Thus, growth and repair are the correct effects.

Correct answer: D. Storing energy

Fat is an energy-yielding nutrient that provides concentrated energy and can be stored in adipose tissue for later use. It also helps insulate the body, cushions organs and supports absorption of fat-soluble vitamins A, D, E and K. Because excess fat may contribute to health problems, the type and amount consumed should be balanced.

Correct answer: A. Providing energy

Carbohydrates are the body’s main readily available source of energy. During digestion, many carbohydrates are broken down into glucose, which cells use to produce energy for movement, work and essential body functions. Fibre is also a type of carbohydrate that supports bowel health, although it is not digested in the same way. Therefore, providing energy is the main answer.

Correct answer: A. Providing all essential nutrients in proper amounts

A balanced diet contains a variety of foods that provide carbohydrates, proteins, fats, vitamins, minerals, fibre and water in suitable proportions according to a person’s needs. It supports growth, repair, energy, immunity and normal body functions rather than merely filling the stomach. Therefore, option A is correct. The exact requirement varies with age, sex, activity, health and physiological condition.

Correct answer: B. To obtain different nutrients

No single food supplies every nutrient in the amounts required by the body. Including cereals, pulses, milk or alternatives, vegetables, fruits, nuts and suitable fats improves the range of nutrients consumed. Variety also makes meals more acceptable and can reduce the risk of deficiencies. Thus, option B is correct: a varied diet helps obtain different nutrients and supports balanced nutrition.

Correct answer: D. They are an important source of plant protein

Pulses, including lentils, chickpeas, beans, peas and soybeans, are important sources of plant protein. Protein is needed for growth, maintenance and repair of body tissues, and pulses can be an economical part of a nutritious diet. They also contribute carbohydrate, fibre, vitamins and minerals, but they do not replace water or stop digestion. Thus, option D is correct.

Correct answer: A. Calcium

Milk and many milk products are recognised as important dietary sources of calcium. Calcium is required for the formation and maintenance of strong bones and teeth, and it also contributes to muscle contraction, nerve transmission and blood clotting. Milk contains other nutrients as well, but it is not a significant source of fibre or vitamin C. Therefore, option A is the correct answer.

Correct answer: A. Ingredients and nutrition information are obtained

Reading a food label helps consumers identify ingredients, serving size, calories, protein, fat, sugar, sodium, allergens, and important dates. This information supports safer and more informed food choices, especially for people managing allergies or health conditions. Therefore, option A is correct. Labels cannot cook food or eliminate the need for prescribed medicine, and they do not provide clothing information.

Correct answer: B. High energy but low nutritional value

Empty-calorie foods provide considerable energy, usually from added sugars or solid fats, but contain little fibre, protein, vitamins, or minerals in relation to their calorie content. Therefore, option B is correct. Examples include many sugary drinks, sweets, and highly processed snack foods. They may fit occasionally in a varied diet, but frequent large amounts can displace nutrient-rich foods and increase the risk of unhealthy weight gain.

Correct answer: C. It can be linked with weight gain and unbalanced eating habits

Excess sugar provides energy but very few essential nutrients. Frequent intake of sugary foods and drinks can increase total calorie consumption, contribute to weight gain and displace nutritious foods such as fruits, vegetables, pulses and whole grains. Limiting sugar supports a more balanced diet and helps protect dental health. Therefore, option C is correct.

Correct answer: C. Because frying can increase the fat and energy content of food

During frying, food may absorb oil or fat, which increases its energy density and total calorie content. Regularly eating large quantities of fried food may make weight management difficult and may increase the intake of unhealthy fats, depending on the oil and cooking method. Fried food can be included occasionally, but moderation is advisable. Thus, option C is correct.

Correct answer: B. For growth, energy and maintenance of the body

Nutrients are substances the body needs to obtain energy, build and repair tissues, regulate chemical processes, support immunity, and maintain normal growth and body functions. Different nutrients have different roles: carbohydrates and fats mainly supply energy, proteins build and repair tissues, and vitamins and minerals regulate important processes. Thus, option B correctly includes growth, energy, and maintenance.

Correct answer: B. Because excess fat can increase energy intake

Fat is an essential nutrient and supplies concentrated energy, helps absorb fat-soluble vitamins, and supports cell functions. However, each gram of fat provides more energy than carbohydrates or proteins. Regularly eating excessive fatty foods can therefore increase total energy intake and contribute to overweight or an unbalanced diet. The correct answer is B because moderation helps maintain energy balance; it does not mean that fat must be completely removed.

Correct answer: C. They help regulate body functions

Vitamins are organic micronutrients required in small amounts for normal growth, metabolism, immunity, vision, blood formation, and other physiological processes. They generally do not supply energy directly, but they help enzymes and body systems work properly. A deficiency of a particular vitamin can produce a specific disorder. Therefore, option C is correct: vitamins help regulate and support essential body functions.

Correct answer: B. Supporting digestion and regular bowel movement

Dietary fibre is the part of plant food that is not completely digested in the small intestine. It adds bulk to stool, holds water, and supports regular bowel movement, thereby helping prevent constipation. Fibre-rich foods can also improve satiety and support healthy blood glucose and cholesterol levels when included in an overall balanced diet. Hence, option B is correct because fibre primarily supports digestive and bowel health.

Correct answer: D. Because water is necessary for body functions

Water is an essential part of a healthy dietary pattern even though it does not provide energy like carbohydrate, fat, or protein. It supports digestion, absorption, circulation, removal of wastes, temperature regulation, lubrication, and many cellular reactions. Inadequate intake may lead to dehydration and impaired physical or mental performance. Thus, option D is correct because water is necessary for normal body functions.

Correct answer: A. Energy and nutrient intake may reduce

Skipping breakfast may reduce the total energy and nutrient intake of the day, especially when the missed meal is not replaced with a nutritious alternative. Breakfast can provide cereals, protein, fruit, and other nutrients needed for school activities and concentration. Therefore, option A is correct; the other options are unrelated to nutrition.

Correct answer: B. Because they give high energy and fewer nutrients

Empty-calorie foods, such as sugary drinks, sweets, and some highly refined snacks, can provide considerable energy while supplying very little protein, fibre, vitamins, or minerals. Eating them frequently may displace nutritious foods and contribute to excessive energy intake. Thus, option B correctly explains why they should be limited.