Tamil Nadu HSE Second Year Nutrition and Dietetics study guide
Tamil Nadu HSE Second Year Nutrition and Dietetics · Work through your exam, one topic at a time.
The Tamil Nadu HSE Second Year Nutrition and Dietetics subject is the Class 12 elective taken by higher secondary students in the state board stream who are considering careers in nutrition, dietetics, food science, nursing, home science or public health. It suits students who enjoy biology and chemistry applied to real life: how the body uses food, why diets differ across ages and illnesses, and how food is kept safe from farm to plate. The Tamil Nadu HSE Second Year Nutrition and Dietetics study guide has 13 sections and about 3,825 words.
01Introduction to Nutrition and Dietetics
Nutrition is the science of nutrients, their action, interaction and balance in health and disease. Dietetics is the application of that science to feeding individuals or groups, including therapeutic diets.
314 words, about 2 min02Food Groups
Food groups sort foods by the nutrients they contribute, so that a diet can be checked for completeness. Indian nutrition teaching commonly uses five food groups: cereals and millets; pulses and legumes; milk and meat foods; fruits and vegetables; and fats and sugars.
343 words, about 2 min03Food Guide Pyramid and Balanced Diet
A food guide pyramid translates food groups into a visual guide to relative quantities. A balanced diet provides all nutrients in the required amounts and proportions, with enough fibre and water, and is safe, affordable and culturally acceptable.
334 words, about 2 min04Macronutrients: Carbohydrates, Proteins and Lipids
Macronutrients supply energy and building material. Carbohydrates provide 4 kcal/g, proteins 4 kcal/g and fats 9 kcal/g.
310 words, about 2 min05Micronutrients: Vitamins, Minerals and Water
Vitamins and minerals are needed in small amounts but do not supply energy. Water is the most abundant body component and is essential for transport, temperature regulation and excretion.
297 words, about 1 min06Energy Metabolism
Energy metabolism converts food energy into ATP and heat. The exam tests energy values, the stages of cellular respiration, respiratory quotient and energy balance.
268 words, about 1 min07Basal Metabolic Rate and Recommended Dietary Allowances
Basal metabolic rate (BMR) is the energy needed for vital functions at rest, measured after an overnight fast and in a comfortable environment. Recommended Dietary Allowances (RDA) are intake levels that meet the needs of nearly all healthy people in a group.
299 words, about 1 min08Nutritional Assessment and Nutritional Status
Nutritional assessment determines nutritional status using anthropometry, biochemical tests, clinical examination and dietary assessment, often remembered as ABCD, with ecological factors added. The exam tests methods, indicators and interpretation.
269 words, about 1 min09Meal Planning and Diet Modification
Meal planning translates nutrient needs into realistic meals using food groups, portion sizes, budget, season and culture. Diet modification adjusts energy, protein, fibre, sodium, fat or consistency for a clinical or life-stage need.
291 words, about 1 min10Diet in Health and Disease (Therapeutic Nutrition)
Therapeutic nutrition uses diet to prevent, treat or manage disease while maintaining nutritional status. The exam tests principles for diabetes, hypertension, obesity, renal disease and diarrhoea, and the reasoning behind each modification.
281 words, about 1 min11Food Safety, Preservation and Adulteration
Food safety prevents foodborne illness and injury. Preservation extends shelf life by controlling microorganisms, moisture, oxygen or temperature.
260 words, about 1 min12Community Nutrition and National Nutrition Programmes
Community nutrition addresses nutritional problems at population level through assessment, food-based approaches, supplementation, fortification and public programmes. The exam tests programme objectives, target groups and the nutrition problem each addresses.
262 words, about 1 min13Practical Work: Food Preparation, Recording and Diet Surveys
Practical work tests whether you can prepare food hygienically, weigh and record accurately, calculate nutrients, and conduct a small diet survey. The exam may ask for a method, a calculation, a record format or an interpretation.
297 words, about 1 min