Prevention of chronic diseases

Sugar added to tea is free or added sugar and supplies energy, even though it is consumed as a beverage rather than as a solid sweet. Several cups with multiple spoonfuls can make the daily total substantial and may support excess calorie intake, dental caries and metabolic risk. A complete diet assessment must count sugar in tea, coffee and other drinks; therefore A is correct.

A family can influence food availability, meal planning, shopping, cooking and encouragement. When healthy choices become normal in the home, an individual faces fewer barriers and is more likely to maintain them over time. Family support does not make everyone’s nutrient needs identical, remove the need for screening or replace physical activity. Thus, A correctly describes the preventive benefit.

Energy density means that a food can provide many kilocalories in a relatively small weight or volume. Fried snacks, confectionery and many packaged products may contain concentrated fat, sugar and starch, so a small packet can add substantial energy, especially if eaten frequently or alongside meals. If total intake exceeds expenditure over time, weight may increase. Portion size and frequency therefore both matter.

Long uninterrupted sitting is associated with low energy expenditure and may contribute to poor metabolic health, stiffness and cardiovascular risk. Brief movement breaks, standing or walking during work, active travel where possible and regular planned exercise help reduce inactivity. These measures should complement, not replace, balanced meals and adequate rest. Skipping meals or using tobacco is harmful and cannot prevent the effects of sedentary behaviour.

Even oils regarded as healthier because they contain more unsaturated fat are energy-dense and provide about 9 kilocalories per gram. Using too much can raise total energy intake beyond the body’s needs, especially when combined with other calorie-rich foods, and may promote weight gain. Quality matters for fat health, but quantity and total energy balance matter too; therefore A is correct.

Counselling helps a person understand risk, set realistic goals, identify barriers and choose practical actions such as reducing tobacco, improving meals, increasing activity or following treatment. Supportive follow-up can improve confidence and adherence rather than relying only on information. Counselling does not stop food or replace screening; it facilitates healthier decisions and sustained behaviour change, making A the correct answer.

Vegetables remain valuable sources of fibre, vitamins, minerals and protective compounds, but deep-frying or using excessive oil can greatly increase energy density and may worsen the overall fat profile of the meal. Steaming, boiling, baking or lightly sautéing preserves the food’s place in the diet while limiting added fat. Vegetables should not be removed; the cooking method and oil quantity should be improved.

A regular sleep schedule, adequate sleep duration, reduced screen exposure before bedtime and a calm sleeping environment can support healthy sleep. Better sleep may improve appetite regulation, mood, concentration, recovery and metabolic health, while persistent sleep deprivation can undermine other preventive habits. Individual needs differ, and continuing severe sleep problems should be discussed with a health professional. Thus, A is correct.

Chronic disease prevention is usually multifactorial. A balanced and varied diet, regular physical activity, healthy weight, adequate sleep, avoidance of tobacco, appropriate alcohol decisions and recommended screening work together to reduce risk and detect problems early. No single food can prevent every disease, and check-ups remain useful even when a person feels well. Therefore, option B gives the most complete statement.

Whole grains, pulses, fruits and vegetables provide dietary fibre along with vitamins, minerals and other useful compounds. Fibre supports bowel regularity, helps satiety and can assist with blood-glucose and blood-lipid management when included in an overall balanced diet. Refining removes much of the natural fibre, while sugary, fried and packaged foods are generally poor replacements. Therefore, increasing these plant foods is the best change.

Medicines address specific biological processes, but lifestyle affects energy balance, blood pressure, glucose control, blood lipids, fitness and treatment adherence. Appropriate dietary changes, activity and weight management may improve control and reduce complications, although recommendations must be individualised. Lifestyle changes should complement prescribed medicine, never replace or alter it without professional advice. Hence, A is the scientifically correct answer.

Self-monitoring means observing and recording relevant behaviour or measurements so that patterns become visible. A record of weight, meals, sugary drinks, activity and sometimes prescribed measurements can reveal trends and help a person set realistic goals, notice setbacks and discuss them with a professional. It is not a substitute for medical assessment, but it supports informed correction; therefore A is correct.

Reducing salt added at the table does not necessarily reduce total sodium if processed foods provide large amounts. Packaged soups may contain sodium in the form of salt or other sodium-containing ingredients, so the nutrition label and serving size should be checked. Choosing lower-sodium products, preparing soup at home and limiting frequent use are helpful. Thus, A is the necessary caution.

Option A is correct because family food practices strongly influence daily eating behaviour. Discussing steaming, baking, grilling, or using less oil can reduce excess energy and unhealthy fat while preserving shared meals. Portion control also allows occasional foods to be managed sensibly. Exercise is valuable, but it cannot fully cancel the dietary effects of frequent fried-food intake. Supportive family participation makes prevention more practical and sustainable.

Option A is the broadest and most scientifically meaningful sign because prevention is successful when healthy behaviours are maintained and measurable risks are controlled. This includes appropriate food choices, regular physical activity, healthy weight, blood-pressure or glucose monitoring when needed, and avoidance of tobacco. Buying expensive food or avoiding checkups does not demonstrate prevention.

Option A is correct because checkups identify risk, but they do not automatically remove it. Screening can reveal high blood pressure, high glucose, abnormal lipids, or excess weight; acting on that information through suitable diet, activity, sleep, and medical advice is necessary. Therefore prevention requires both monitoring and practical behaviour change, not screening alone.

Primary prevention acts before a disease develops. It aims to reduce or remove modifiable risk factors through balanced eating, adequate activity, healthy weight, tobacco avoidance, moderation of alcohol, and other protective habits. Medicines after diagnosis may be treatment or secondary management, whereas hiding symptoms or increasing complications is never prevention. Thus option A gives the precise definition.

Option B is correct because energy balance compares energy consumed from food with energy used by the body and activity. When excess energy is regularly stored, body weight and abdominal fat may increase, raising risks for insulin resistance, diabetes, hypertension, and heart disease. Balanced intake and expenditure support healthy weight, although they do not remove the need for screening or professional advice.

Option C is correct because fruits and vegetables provide potassium, fibre, and other protective nutrients. Along with reducing excess sodium, a plant-rich eating pattern can support blood-pressure control and improve overall diet quality. Trans fat, sugary drinks, and additional salt generally worsen cardiovascular risk. The exact dietary plan should consider individual health conditions and professional advice.

Option B is correct because high intake of saturated and especially trans fats can worsen the blood-lipid profile, including raising harmful LDL cholesterol, and may contribute to plaque formation in arteries. Replacing them with unsaturated fats and choosing less fried or processed food supports heart health. These changes work with, rather than replace, activity and medical monitoring.

Option A is correct because whole grains retain more of the bran and germ, which provide dietary fibre, vitamins, minerals, and useful plant compounds. Fibre can improve fullness, bowel function, and the steadiness of post-meal blood-glucose rise. Refined grains lose some of these components during processing. Portion size and the total diet still remain important for prevention.

Option B is correct because waist measurement gives information about central or abdominal fat, which may carry metabolic risk even when body weight alone does not show the complete picture. Excess abdominal fat is associated with insulin resistance, type 2 diabetes, hypertension, and cardiovascular risk. Waist measurement should be interpreted carefully with age, sex, height, and clinical guidance.

Option A is correct because label reading helps people identify sodium, added sugar, saturated fat, trans fat, and energy before purchasing or eating a product. This supports healthier choices and reduces exposure to modifiable dietary risks before disease develops, which is primary prevention. It is an education and decision-making skill, not a diagnostic test or surgical treatment.

Option B is correct because predictable meal timing can help regulate hunger, reduce long gaps followed by overeating, and support more consistent carbohydrate distribution. These habits may assist weight management and steadier blood-glucose patterns when combined with nutritious food choices and activity. Regular timing does not mean eliminating all carbohydrates; their quality and portion are also important.

Option A is correct because dietary fibre has several complementary effects. It can increase fullness, support normal bowel movement, slow digestion and glucose absorption, and contribute to healthier cholesterol levels depending on the type and overall diet. Fibre-rich foods include pulses, vegetables, fruits, nuts, seeds, and whole grains. Adequate fluids are also useful when fibre intake rises.