Prevention of chronic diseases

Correct answer: D. Limiting salt and eating fruits and vegetables

Explanation: Limiting sodium, reducing highly processed foods and eating adequate fruits and vegetables can support healthy blood pressure. Fruits and vegetables provide potassium and fibre, while packaged snacks often contain hidden salt. Lifestyle advice should complement, not replace, prescribed treatment.

Correct answer: A. By increasing satiety and helping prevent overeating

Explanation: Fibre adds bulk and is digested slowly, so high-fibre foods such as vegetables, fruits, pulses and whole grains can increase fullness. This may reduce overeating and frequent high-calorie snacking, helping control total energy intake. Fibre does not permanently switch off hunger or guarantee weight loss.

Correct answer: A. Water does not provide added sugar and energy

Explanation: Sugar-sweetened drinks can add substantial sugar and calories without producing lasting fullness, which may contribute to excess weight and poor blood-glucose control. Plain water hydrates the body without added sugar or energy. Unsweetened beverages are therefore generally preferable for prevention.

Correct answer: B. In understanding salt, sugar and fat content

Explanation: Reading a food label allows comparison of serving size, calories, sodium, added sugar, saturated fat and trans fat. This information helps consumers select products with less salt, sugar and unhealthy fat, supporting weight, blood-pressure and heart-health goals in chronic-disease prevention.

Correct answer: A. They provide fibre and some nutrients

Explanation: Whole grains retain more of the grain kernel than refined grains and therefore generally provide more fibre, vitamins, minerals and useful plant compounds. Fibre supports fullness and digestive health and may help control blood glucose and weight when included in a balanced diet.

Correct answer: A. In reducing heart and lung risks

Explanation: Tobacco smoke damages blood vessels and lung tissue and increases the risk of cardiovascular disease, chronic respiratory disease and several cancers. Quitting reduces exposure to toxic chemicals, improves circulation and lung function over time, and protects people nearby from second-hand smoke.

Correct answer: A. They provide plant protein and fibre

Explanation: Pulses and legumes provide plant protein, dietary fibre, folate, minerals and other nutrients. Fibre supports fullness, bowel health and better glucose control, while replacing some high-saturated-fat foods with legumes can support heart health. They are especially valuable as part of a varied balanced diet.

Correct answer: B. Because home habits affect the whole family

Explanation: Family meal planning can make healthy choices available and consistent for everyone. Shared shopping, cooking and eating habits influence portion sizes, salt, sugar, vegetable intake and snack choices. Family support also improves adherence, although plans should respect individual medical, cultural and age-related needs.

Correct answer: A. Identifying obesity and risk changes early

Explanation: Weight and waist circumference provide simple indicators of body size and central fat. Increasing abdominal fat is associated with higher risk of diabetes, hypertension and cardiovascular disease. Repeated measurements can show trends and encourage timely lifestyle advice, but they should be interpreted with other health information.

Correct answer: A. Bone weakness

Explanation: Calcium is a structural mineral in bones, while vitamin D helps the body absorb and use calcium. Adequate intake, safe sunlight exposure, weight-bearing activity and appropriate medical advice support bone strength and help reduce the risk of weakness and osteoporosis, especially across the life course.

Correct answer: A. It can help energy balance and digestive comfort

Explanation: A very large, energy-dense dinner may increase total daily energy intake and can cause discomfort or disturb sleep for some people. A moderate meal with vegetables, whole grains and suitable protein supports energy balance. Meal size is only one factor; the entire day’s diet and activity also matter.

Correct answer: A. They help blood sugar rise slowly

Explanation: Low-glycemic foods are digested and absorbed more slowly, so they generally produce a more gradual rise in blood glucose than rapidly digested refined foods. Pulses, many intact whole grains and non-starchy vegetables are useful examples. Portion size and total dietary quality remain important.

Correct answer: A. Weight and metabolic imbalance

Explanation: Insufficient or irregular sleep can affect appetite-regulating hormones, food choices, insulin sensitivity and energy balance. Over time it may be associated with weight gain and metabolic problems, including greater risk of impaired glucose control. Good sleep should accompany a balanced diet and regular activity.

Correct answer: A. Making people aware of healthy food and lifestyle

Explanation: Community nutrition education gives people practical knowledge and skills about balanced meals, food labels, hygiene, portion sizes and healthy activity. When messages are culturally suitable and supported by accessible foods and services, awareness can encourage healthier behaviour and reduce shared risk factors for chronic disease.

Correct answer: A. Roasted gram provides protein and dietary fibre and is generally lower in fat

Explanation: Roasted gram generally supplies plant protein and dietary fibre, which can support fullness and make it a more nutritious snack. Fried chips are commonly higher in fat, sodium and energy and lower in protein and fibre. The exact composition depends on preparation, so labels and portion size still matter.

Correct answer: A. They provide fibre and protective nutrients

Explanation: Fruits, vegetables, pulses, nuts, seeds and whole grains provide fibre, vitamins, minerals and protective plant compounds. These foods can support healthy weight, bowel function, blood-glucose control and heart health when they replace excess salt, sugar and unhealthy fats. Variety and balanced portions remain important.

Correct answer: A. They can reduce the future risk of chronic diseases

Explanation: Healthy habits formed during adolescence often continue into adulthood. A balanced diet, regular physical activity, adequate sleep, avoidance of tobacco and sensible weight control can reduce the later risk of obesity, type 2 diabetes, hypertension and heart disease. These habits cannot prevent every genetic disorder and never remove the need for nutrients or exercise. Therefore, option A is the only accurate answer.

Correct answer: A. To reduce the risk of liver and other chronic diseases

Explanation: Excessive alcohol supplies energy without essential nutrients and can damage the liver. Long-term heavy intake is associated with fatty liver, cirrhosis, some cancers, high blood pressure and other health problems. Limiting alcohol therefore supports chronic-disease prevention, although it does not make every meal balanced or instantly strengthen bones. Thus, option A is correct.

Correct answer: A. To support tissue maintenance and satiety

Explanation: Protein is needed for growth, repair and maintenance of muscles and other body tissues. It also generally increases satiety, which may help a person regulate portions and avoid unnecessary snacking. Pulses, beans, milk, curd, eggs, fish, meat, soy and paneer are useful sources. Protein does not replace vegetables or water, so option A is correct.

Correct answer: A. It helps recognise satiety and avoid overeating

Explanation: The body needs time to recognise signals of fullness. Eating slowly, chewing well and paying attention to the meal can make these signals easier to notice before excessive food is consumed. This mindful-eating practice may improve portion control and support healthy weight management. It does not alter the cooking method, remove nutrients or instantly raise blood pressure, so A is correct.

Correct answer: A. They may be relatively fresh and increase dietary variety

Explanation: Local and seasonal foods may travel shorter distances and can therefore be relatively fresh. Choosing different fruits, vegetables and other foods across seasons also increases dietary variety and may improve access to diverse nutrients. However, local status alone does not guarantee superior nutrition, and such foods do not replace physical activity or a balanced diet. Therefore, A is correct.

Correct answer: A. It helps control carbohydrate and energy intake

Explanation: Portion control limits the amount of carbohydrate and total energy eaten at one time. This can reduce sharp rises in blood glucose and support healthy weight, particularly when meals contain high-fibre carbohydrates, vegetables and adequate protein. It is not a cure and does not transform food, salt or water into something else. Therefore, A is the correct preventive principle.

Correct answer: A. They provide calcium while helping control fat intake

Explanation: Low-fat milk, curd and similar products can provide calcium, protein and other nutrients with less saturated fat than their full-fat counterparts. Choosing suitable portions may support bone health and help manage total fat and energy intake. They are not automatically sugar-free, and individual products differ, so labels and unsweetened choices matter. The accurate general statement is A.

Correct answer: A. To avoid uncontrolled fried and sweet snacks

Explanation: Planning makes nutritious choices available when hunger occurs. Fruit, plain curd, roasted gram, sprouts or a small portion of unsalted nuts can replace impulsive fried and sugary snacks. This may improve fibre and nutrient intake and help control excess energy, sugar and unhealthy fat. Planning does not mean skipping meals or eating only for taste, so option A is correct.

Correct answer: A. There can be better control over salt, sugar and fat

Explanation: Home cooking allows the person to select ingredients, control oil and salt, add vegetables and pulses, and choose healthier cooking methods. Packaged fast foods may be high in sodium, sugar, saturated fat or energy, although not every packaged food is unhealthy. Thus “can be better” is important: home food is not automatically perfect, but its composition is easier to control. A is correct.