Prevention of chronic diseases

Before preparing a therapeutic diet, the patient's nutritional status and requirements must be assessed. This includes age, sex, body measurements, disease, symptoms, laboratory findings, activity, food intake and special restrictions. Assessment comes before planning because the diet must meet needs without worsening the medical condition.

Protein metabolism produces nitrogen-containing waste products that are normally removed by the kidneys. In some stages of kidney disease, controlled protein intake may reduce the waste burden, but excessive restriction can cause malnutrition. The amount must therefore be individualised according to kidney function, dialysis status, energy intake and medical advice.

The amount of nutrients in a therapeutic diet must be changed after considering the patient’s disease, symptoms, laboratory findings, age, activity, appetite, and nutritional status. A proper assessment ensures that the diet supports recovery and avoids unnecessary excesses or deficiencies. Therefore, option A is correct.

Whole-grain upma supplies more fibre than refined sugary foods, and curd adds protein and other nutrients. Together, in a suitable portion, they may produce a slower and steadier rise in blood glucose than jalebi, sweet drinks, or sugary biscuits. Individual medication, portion size, and total carbohydrate intake must still be considered.

Coeliac disease is an immune-mediated condition in which gluten triggers injury to the small-intestinal lining. A strict gluten-free diet is required, avoiding wheat, barley, rye, and foods contaminated with them, while naturally gluten-free foods such as rice, fruits, vegetables, pulses, and most unprocessed meats may be used appropriately. Professional guidance is important to maintain nutritional adequacy.

For cardiovascular health, the type and total amount of fat both matter. Trans fat should be avoided as far as possible, saturated fat should be limited, and unsaturated fats can be chosen in moderate amounts within the person’s energy needs. A heart-healthy plan also considers fibre, sodium, overall calories, cooking methods, and the patient’s medical advice.

Severe illness can increase metabolic stress and nutrient requirements, while poor appetite or inability to eat reduces intake. If appropriate nutrition support is delayed, the body may break down muscle and other tissues for energy, increasing weakness, impaired immunity, poor wound healing, and recovery problems. Support must be individualized according to the patient’s medical status and feeding safety.

Some patients with advanced kidney disease cannot excrete potassium efficiently, so blood potassium may become dangerously high. A low-potassium diet may then be prescribed after reviewing laboratory results, medicines and kidney function. It is not suitable for every kidney patient or healthy person, because unnecessary restriction can cause deficiency and reduce diet quality.

Food fortification means adding selected vitamins, minerals, or other nutrients to a commonly eaten food in a controlled amount. It is used to improve nutritional status and help prevent or reduce a recognised deficiency, such as iron or iodine deficiency. Thus, option B is correct.

Option A is correct because a diet that ignores taste, culture, affordability, routine, and personal preference is difficult to follow. Poor adherence can reduce the intended therapeutic benefit even when the nutrient prescription is scientifically sound. Patient-centred counselling should negotiate realistic substitutions and involve the patient in decisions whenever possible.

Option A is correct because low-glycemic foods generally raise blood glucose more slowly than rapidly digested high-glycemic choices. Their use, together with suitable portions, fibre, meal timing, medication, and monitoring, may support diabetes management. Glycemic index is not a licence to eat unlimited food; the complete dietary pattern and individual advice remain important.

An elimination diet temporarily removes a suspected food or ingredient while symptoms are monitored. Under qualified professional guidance, the food may later be reintroduced or tested to determine whether it truly causes a reaction. It does not mean permanently avoiding every food, because unnecessary restriction can cause nutrient deficiencies and poor growth, especially in children.

People with coeliac disease have an immune-mediated reaction to gluten, a protein found in wheat, barley, and rye. Continued exposure can damage the small-intestinal lining and impair absorption, even when symptoms are not obvious. Identifying hidden gluten sources, preventing cross-contact, and using nutritionally adequate gluten-free alternatives are therefore important parts of diet management.

Diarrhoea can rapidly cause loss of water, sodium, potassium, and other electrolytes, making dehydration the immediate danger. Oral rehydration solution supplies water and glucose with salts in proportions that support intestinal absorption. Breastfeeding and suitable light food should generally continue unless medically contraindicated, because withholding food can worsen weakness and nutrient loss.

Low-glycemic-index foods are digested and absorbed more slowly than high-glycemic foods, so they may produce a slower and smaller rise in blood glucose. This can support glycemic management when combined with suitable portions, adequate fibre, medication, physical activity, and regular monitoring. Glycemic index alone does not make a food unlimited or automatically healthy.

Long fasting periods can occur overnight and may encourage the body to use stored glycogen and then muscle protein for energy. In some liver diseases, energy reserves and metabolism are already disturbed, so prolonged fasting may worsen muscle loss and malnutrition. Small frequent meals and a suitable bedtime snack can distribute energy and protein more evenly, but they must be adjusted for ascites, diabetes, tolerance, and medical advice.

Therapeutic restrictions should be evidence-based and limited to what the patient’s condition requires. Excessive exclusion can reduce energy, protein, vitamins, minerals and dietary variety, while making meals frustrating and difficult to follow. This may cause deficiencies, weight loss or poor adherence. A balanced, culturally acceptable plan with monitoring is safer than unnecessary restriction.

A balanced diet supplies energy, protein, vitamins, minerals, fibre, and fluids in suitable amounts. These nutrients support immunity, healthy body weight, blood formation, tissue repair, and normal organ function, thereby reducing the risk of several deficiency and lifestyle-related disorders. Diet alone does not cure every disease or replace prescribed medicine, so the careful statement in option A is correct.

A diet high in saturated fat can adversely affect blood lipid patterns in many people, particularly by raising LDL cholesterol when it replaces healthier unsaturated fats. Persistently elevated LDL is associated with atherosclerosis and increased cardiovascular risk. The effect depends on the whole diet, quantity consumed and individual health factors.

A balanced diet supplies appropriate amounts of energy, protein, fibre, vitamins, minerals, and healthy fats. Along with physical activity, adequate sleep, and medical care, it can help reduce the risk of obesity, diabetes, cardiovascular disease, and some other chronic conditions. It supports prevention but cannot replace every treatment.

Sodium information helps consumers identify packaged foods that may contribute substantial salt to the diet. For many people, reducing excessive sodium intake can support blood-pressure control and lower hypertension risk, especially when combined with a balanced diet and medical advice. Labels should be interpreted along with serving size and total daily intake.

Added sugar may be present in soft drinks, flavoured beverages, cereals, sauces, biscuits, and other packaged snacks, sometimes under names such as syrup, glucose, sucrose, or maltose. Reading the ingredient list and nutrition label helps estimate sugar intake. Frequent excess intake can increase energy intake and chronic-disease risk.

Healthy kidneys remove excess potassium through urine. In kidney disease, or with certain medicines, potassium can accumulate in the blood and cause hyperkalaemia, which may disturb heart rhythm. Therefore, a person with kidney impairment or an abnormal potassium result should follow individual medical and dietary advice rather than taking supplements independently.

Antioxidant nutrients and phytochemicals can help protect cells from oxidative damage, but their effects depend on the overall diet and health context. Fruits, vegetables, pulses, nuts and whole grains provide many protective compounds. Supplements do not automatically prevent or cure every disease and should not replace prescribed treatment.

A balanced diet can support immunity, healthy weight, nutrient adequacy and lower the risk of some chronic conditions. However, prevention is different from treatment, and infections, deficiencies or established diseases may require diagnosis, medicines or other clinical care. Diet should complement—not replace—professional treatment when treatment is indicated.