Nutrition, Health and Well-being

2.1 Core concepts

This is the foundational paediatric-nutrition chapter of Class XI, the first of Part II. It covers the three childhood phases — infancy, preschool, school age — and integrates ICMR-NIN RDA tables with India's National Immunisation Schedule, Universal Immunisation Programme (UIP) timing, breast-feeding guidance from the Ministry of Health & Family Welfare and WHO, and ICDS/Mid-Day Meal Scheme references. It is a numbers-and-tables goldmine for CUET — RDA per kg, immunisation ages, vaccine acronyms, and ICMR balanced-diet quantities are recall staples.

• Nutrition is "food at work" — the process by which we obtain nutrients and metabolise them for growth, repair and well-being; adequate nutrition supports organ function, cognition, immunity, energy and positive attitude (NCERT §8.1, p. 152–153).
• Infancy (birth–12 months) is marked by phenomenal growth; infants need about twice the calories per kg body weight as an adult doing heavy work. Weight doubles in 6 months and triples in 1 year; length rises from 50–55 cm at birth to 75 cm by 1 year (NCERT §8.2, p. 153).
• Besides energy, infants specifically need Protein (muscular growth), Calcium (healthy bones) and Iron (growth and expansion of blood volume) (NCERT §8.2, p. 153).
• RDA Table 1: 0–6 months — Energy 108 kcal/kg, Protein 2.05 g/kg, Calcium 500 mg; 6–12 months — Energy 98 kcal/kg, Protein 1.65 g/kg, Calcium 500 mg (NCERT Table 1, p. 154).
• Breast feeding: WHO recommends exclusive breast feeding for six months; even water is not needed. The yellow fluid produced in the first 2–3 days is colostrum, very rich in antibodies (NCERT §8.2 Breast feeding, p. 154).
• Benefits of breast milk: tailor-made nutrients, emulsified fat, low protein (reduces kidney load), Vitamin C preserved, hygienic, antibodies giving natural immunity against gastro-intestinal/chest/urinary infections; protects mother against breast/ovarian cancer and weak bones (NCERT §8.2, p. 154–155).
• Low birth weight = baby weighing less than 2.5 kg at birth; such babies have poor sucking/swallowing reflexes and need vitamins, calcium, phosphorus and iron in addition to breast milk (NCERT §8.2 Feeding the low birth weight infant, p. 155).
• Complementary foods are introduced gradually by 6 months: liquid complements (diluted milk 3:1, citrus juices from 4 months, soups), semi-solid complements by 5–6 months (mashed veg, pulse + cereal, egg yolk from 7 months), and solid complements by 10 months–1 year (dals, cereals, minced meat, raw salad/fruit as finger foods). Should be calorie-dense providing at least 10% energy as protein (NCERT Table 2, p. 156).
• Indian low-cost complementary foods include Indian Multipurpose Flour (75:25), Malt food (4:4:2), Balahar (7:2:2), Win food (5:2:2:2), Poshak (4:2:1:2), Amutham (1.5:1.5:1.5:2.5:2.5), Amritham (4:2:1:1:2) (NCERT §8.2 Complementary foods, p. 156).
• National Immunisation Schedule (Table 3): Birth — BCG, OPV, HEP B; 6, 10, 14 weeks — OPV + PENTA (DPT, HEP B, HiB); 9 months — MR (Measles, Rubella) (NCERT Table 3, p. 157).
• Common child deficiency diseases: Protein-Energy Malnutrition (PEM) → growth retardation; Anaemia (iron); Nutritional blindness (Vitamin A); Rickets/osteopenia (Vitamin D + calcium); Goitre (iodine) (NCERT §8.2 Common health problems, p. 158).
• Six dreaded communicable diseases that immunisation protects against: polio, diphtheria, tuberculosis, pertussis, measles and tetanus (NCERT §8.2, p. 158).
• Preschoolers (1–6 yrs) — growth slows compared with infancy but child remains very active; RDA (Table 4): 1–3 yrs — 1240 kcal, 22 g protein; 4–6 yrs — 1690 kcal, 30 g protein; Calcium 400 mg; Iron 12–18 mg (NCERT §8.3 Table 4, p. 159).
• Preschool diets must emphasise three aspects: Variety (textures/colours), Balance (carbs, lean protein, fats) and Moderation (sweets/fats). Universal use of iodised salt prevents Iodine Deficiency Disorders (NCERT §8.3, p. 160–161).
• ICMR balanced diet for preschoolers (Table 5): Cereals 60/120 g, Pulses 30 g, Milk 500 ml, Fruits & Vegetables (roots 50/100, leafy 50/50, others 50/100, fruits 100), Sugar 15/25 g, Fats/Oils 20/25 g (NCERT Table 5, p. 161).
• Booster Immunisation Table 6: 15–18 months — MMR; 16 months–2 yrs — DPT, OPV booster; 2 yrs — Typhoid; 10 yrs and 16 yrs — Tetanus Toxoid (TT) (NCERT Table 6, p. 163).
• School-age children (7–12 yrs): latent growth period; nutrient needs identical for boys and girls up to 9 years, then diverge. RDA (Table 7): 7–9 yrs — 1690 kcal, 29.5 g protein; 10–12 yrs Boys — 2190 kcal, 39.9 g; Girls — 2010 kcal, 40.4 g, Iron 27 mg (highest for girls) for menarche (NCERT §8.4 Table 7, p. 164).
• Diet planning principles for school children: aim for variety, ensure good nutrition (more protein/calcium/iron/iodine), limit saturated fat/salt/sugar (fat ≤20% calories), never skip breakfast, involve children in meal planning (NCERT §8.4 Planning diets, p. 165).
• Factors influencing diet intake: Family environment, Media (TV ads), Peers, Socio-cultural influences and Erratic appetite (NCERT §8.4 Factors that influence diet intake, p. 167–168).
• Healthy habits for school children: sensible eating, physical activity 45–60 min, food safety, control over quantity intake (NCERT §8.4 Healthy habits, p. 168).
• Health and nutrition issues of school age: rising obesity (high-salt/fatty foods, low fibre, sedentary lifestyle); Type II diabetes and hypertension now seen in youngsters; under-nutrition still serious in lower socio-economic groups; Mid-Day Meal Scheme (MDMS) for Classes I–VIII has improved attendance, performance and reduced gender gap (NCERT §8.4 Health and nutrition issues, p. 169). To deepen each section: infancy nutrition is dominated by the breast-feeding paradigm. The WHO recommends exclusive breast feeding for the first six months — no water, no honey, no formula — because breast milk is composed of approximately 88% water, supplying all the fluid the infant needs. Colostrum, the yellow first-three-day fluid, is the infant's first vaccine: it is rich in IgA, lactoferrin, growth factors and white cells, and protects the new-born gut from infection. The 'tailor-made' nature of breast milk includes emulsified fat (easier to digest), low protein (reducing kidney load on a still-immature renal system), preserved vitamin C (which is destroyed on heating), and species-specific antibodies. Maternal benefits too — reduced risk of breast and ovarian cancer and reduced post-partum bone loss — an important point for Indian women whose lifelong calcium intake is often inadequate. Low birth weight (LBW = under 2.5 kg) is endemic in India (around one-third of all births per NFHS estimates), and LBW infants need special feeding adjustments — vitamin, calcium, phosphorus and iron supplementation in addition to breast milk, given poor sucking-swallowing reflexes. Complementary feeding starts at six months because infant iron stores from birth are depleted and energy needs outstrip what breast milk alone can supply. Calorie-dense complementary foods should provide at least 10% of energy as protein — the conceptual basis of ICDS's Take-Home Ration packets and Anganwadi Hot Cooked Meals. NCERT-named Indian low-cost weaning mixes — Indian Multipurpose Flour (75 wheat: 25 Bengal-gram), Malt food (4:4:2), Balahar (7 wheat: 2 Bengal-gram: 2 GNC + oil), Win Food (5 wheat: 2 Bengal-gram: 2 GNC: 2 jaggery), Poshak (4 wheat: 2 Bengal-gram: 1 GNC: 2 jaggery), Amutham (1.5 ragi: 1.5 wheat: 1.5 Bengal-gram: 2.5 jaggery: 2.5 oil), Amritham (4 wheat: 2 Bengal-gram: 1 oilseed: 1 milk powder: 2 jaggery) — should be remembered as a list of NIN/CFTRI low-cost formulas. The National Immunisation Schedule (Table 3, p. 157) is the second most-tested table. Birth: BCG (anti-TB), OPV-0 (polio), Hep B-1; 6/10/14 weeks: OPV and PENTA (DPT + Hep B + Hib); 9 months: MR (Measles, Rubella). The booster schedule (Table 6, p. 163) — 15–18 months MMR; 16 months–2 years DPT/OPV booster; 2 years typhoid; 10 and 16 years Tetanus Toxoid — should be paired in memory with the primary schedule. The six dreaded communicable diseases that immunisation protects against (p. 158) are polio, diphtheria, tuberculosis, pertussis, measles and tetanus — a CUET 'odd-one-out' favourite where typhoid or hepatitis B may be added as distractors. The major child deficiency diseases: Protein-Energy Malnutrition (kwashiorkor and marasmus → growth retardation), Iron Deficiency Anaemia, Vitamin A deficiency (nutritional blindness/xerophthalmia), Vitamin D + calcium deficiency (rickets/osteopenia), and Iodine Deficiency (goitre). Preschool nutrition (1–6 years) shifts focus from grams per kg to absolute daily intake. The RDA table (Table 4) — 1240 kcal at 1–3 yrs, 1690 kcal at 4–6 yrs; 22 g and 30 g protein respectively; 400 mg calcium; iron 12–18 mg — anchors balanced-diet design. ICMR's balanced-diet quantities for preschoolers (Table 5) translate the RDA into food-group servings: cereals 60–120 g, pulses 30 g, milk 500 ml, vegetables (roots/leafy/others 50–100 g each), fruits 100 g, sugar 15–25 g, fats 20–25 g. The three diet principles (variety, balance, moderation) and the universal iodisation policy (the National Iodine Deficiency Disorders Control Programme mandates iodised salt) close out the preschool section. School-age nutrition (7–12 years) sees the latent growth period and the late-childhood acceleration toward puberty. The big concept is that nutrient needs are similar for boys and girls until age 9 and then diverge — most strikingly in iron (10–12 yr girls need 27 mg vs 21 mg for boys) in preparation for menarche. Diet planning principles include limiting saturated fat (≤20% of calories), salt and added sugar; never skipping breakfast; and involving children in meal planning — a behavioural-change strategy. Rising childhood obesity, Type II diabetes and hypertension in urban Indian children parallel the broader 'double burden of malnutrition' narrative. The Mid-Day Meal Scheme (since 1995, now PM POSHAN since 2021) covers Classes I–VIII and has documented gains in attendance, learning outcomes, and reduction of gender and caste gaps — a frequent CUET application MCQ.

2.2 Definitions to memorise

2.3 Diagrams / processes to remember

• Table 1 (p. 154) — RDA for infants 0–6 months vs 6–12 months (energy, protein, calcium, vitamins).
• Table 2 (p. 156) — Types of Complementary Foods (liquid / semi-solid / solid) with introduction ages.
• Table 3 (p. 157) — National Immunisation Schedule (Birth → 9 months).
• Table 4 (p. 159) — RDA for preschoolers 1–3 yrs vs 4–6 yrs.
• Table 5 (p. 161) — ICMR balanced diet for preschoolers.
• Table 6 (p. 163) — Booster immunisation schedule (15–18 months → 16 yrs).
• Table 7 (p. 164) — RDA for school children 7–9 yrs vs 10–12 yrs (boys vs girls).
• Table 8 (p. 166) — ICMR balanced diet quantities for school children.

2.5 Key data / RDA processes table (Indian context, ICMR-NIN)

2.4 Common confusions / NTA trap points

• WHO recommends exclusive breast feeding for six months — water is also NOT required during this period (commonly mis-stated as 4 months).
• Colostrum is produced in first 2–3 days, not throughout lactation; its key property is antibodies, not high calories.
• Complementary foods are introduced by 6 months (not 4 months) and must provide at least 10% energy as protein.
• At 10–12 years, iron requirement is highest for girls (27 mg) — for preparation of menarche — higher than 10–12 yr boys (21 mg).
• MR vaccine (Measles, Rubella) is given at 9 months; the MMR booster (Measles, Mumps, Rubella) is at 15–18 months — students often confuse the two.
• Goitre is due to iodine deficiency; nutritional blindness is vitamin A; rickets is vitamin D + calcium — pairings often swapped in distractors.
• BCG is given at birth — NOT 6 weeks. NTA distractors often swap BCG and PENTA timing.
• The 'six diseases' under UIP exclude typhoid and hepatitis B; the canonical six per NCERT are polio, diphtheria, TB, pertussis, measles, tetanus.
• Iron RDA for 10–12 yr girls (27 mg) is higher than for adult women — because of menarche preparation.
• Indian Multipurpose Flour ratio 75:25 (wheat:Bengal gram) — sometimes flipped in distractors.