Learn — Maternal, infant & life-cycle nutrition

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Infant and young child nutrition — complementary foods from six months

Complementary feeding is the introduction of foods other than breast milk at the completion of six months of age, when breast milk alone no longer meets the infant's energy, protein, iron and zinc needs, continued alongside breastfeeding to two years and beyond; the WHO and Indian guidelines call for it to be timely, adequate, safe and responsively fed. It is the intervention that decides stunting, because the deficit that becomes permanent short stature is laid down between six and twenty-four months, and it is the counselling every nurse at an anganwadi, immunisation session or growth-monitoring day gives.

Timing is six months completed, not four and not nine: before six months the gut and kidneys are unready and every mouthful displaces breast milk, after six months breast milk alone leaves an energy gap of roughly 200 kcal a day that widens to about 550 kcal by the second year; breastfeeding continues on demand throughout.
The first foods are thick, not thin — a mashed cereal porridge (rice, suji, ragi), mashed dal with rice, mashed banana or papaya, boiled mashed potato, pumpkin or carrot — thick enough to stay on a spoon, because a watery gruel fills the stomach with water; a teaspoon of ghee or oil in every meal raises the energy density to the 1 kcal per gram a small stomach needs.
Frequency and amount grow with age: at 6 to 8 months two to three meals a day starting at two to three spoonfuls and reaching half a 250 mL cup, at 9 to 11 months three to four meals of half a cup plus a snack, and at 12 to 23 months three to four meals of three-quarters to one cup plus one or two snacks, all in addition to breast milk; a child who is not breastfed needs one or two extra meals and one or two cups of milk.
Texture moves from puréed and mashed at six months to soft finger foods around eight months and chopped family food by twelve months, and variety matters from the start — a cereal, a pulse, a vegetable or fruit, an egg or milk product, with egg, fish and meat offered well cooked from six months, because iron-rich foods are exactly what breast milk lacks by then.
What is not given: honey before one year (infant botulism), whole nuts and small hard foods (choking), cow's milk as the main drink before one year (iron-poor and a renal load, though small amounts in food are fine), added salt and sugar, tea and coffee, packaged snacks, fruit juices and sweetened drinks, and above all the bottle, which carries infection and undermines breastfeeding — a cup or a spoon is used instead.
Responsive feeding is part of the definition: the child is fed patiently and slowly with encouragement and eye contact, never forced, from her own bowl so the amount eaten can be seen, and during and after illness breastfeeding and soft favourite foods continue with an extra meal a day for two weeks to catch up the weight lost; diarrhoea is treated with ORS and zinc while feeding goes on.
Hygiene and the programme: hand-washing before preparing and feeding, freshly cooked food eaten within two hours and clean utensils; the ICDS take-home ration for children of 6 months to 3 years and the hot meal at the anganwadi after that; the annaprashan ceremony at six months made a community event under the Jan Andolan; and the NFHS-5 indicators the programme is judged by — minimum meal frequency, minimum dietary diversity of five of eight food groups, and a minimum acceptable diet, which only about one child in nine received in 2019-21.

Adolescent nutrition — the growth spurt, weekly IFA and menstrual losses

Adolescence, from 10 to 19 years, is the second and last period of rapid growth, in which a fifth of adult height, half of adult weight and nearly half of the adult skeleton are gained, so that the needs for energy, protein, calcium and iron peak — in girls together with the onset of menstruation. It is also the age at which India's anaemia is worst and its eating habits are set, which is why the weekly iron and folic acid tablet, the deworming dose and the school meal are aimed at exactly this group.

The growth spurt comes about two years earlier in girls (peak height velocity around 12 years, menarche soon after) than in boys (peak around 14), and needs rise with it: energy to the highest of any age in boys of 16 to 18, protein for the new tissue, calcium of about 1000 mg a day for the skeleton — half of adult bone mass is laid down in these years — and iron, which in adolescent girls reaches about 30 mg a day, the highest allowance of any group.
Iron is the problem nutrient because menstruation adds a daily loss on top of the growth demand, the diet is cereal-based with tea at every meal, and girls eat last and least in many households; NFHS-5 found anaemia in about 59 per cent of girls aged 15 to 19, and an anaemic girl becomes an anaemic mother of a low-birth-weight baby within a few years.
The Weekly Iron and Folic Acid Supplementation programme (2012) gives every adolescent of 10 to 19 years — in school from class VI to XII, and out of school through the anganwadi — one blue tablet of 60 mg of elemental iron and 500 micrograms of folic acid on a fixed day each week, with albendazole 400 mg twice a year, and nutrition and health education; under Anemia Mukt Bharat Abhiyaan it is delivered through the school health programme with a test-and-treat pathway for those found anaemic.
The other side of the same coin is rising overweight and obesity from snacks, sweetened drinks, screen time and inactivity, alongside thinness and stunting in the poor; BMI-for-age is the measure (thinness below minus 2 SD, overweight above plus 1 SD, obesity above plus 2 SD), and the same counselling — three meals with breakfast, pulses, milk, eggs and green leaves, water not cold drinks, an hour of activity a day — serves both.
Eating disorders begin in adolescence, most often in girls — anorexia nervosa with fear of weight gain, restriction and amenorrhoea, bulimia with bingeing and purging — and the nurse who sees rapid weight loss, missed periods, dental erosion or callused knuckles refers to mental health services rather than to a dietitian alone.
Adolescent pregnancy is a nutritional emergency in itself: a girl still growing competes with the fetus for energy, protein, iron and calcium, and the result is a low-birth-weight baby and a mother with anaemia and stunted growth; delaying the first pregnancy to after 20 is a nutrition intervention, and the pregnant adolescent gets the full antenatal supplements plus extra food.
The programmes to name: Rashtriya Kishor Swasthya Karyakram (2014) with nutrition as one of its six themes and peer educators (Saathiya) in the community; the School Health and Wellness Programme under Ayushman Bharat with health and wellness ambassadors in every school; the Scheme for Adolescent Girls, now inside Poshan 2.0, for out-of-school girls of 14 to 18; and PM POSHAN's meal for those still in classes up to VIII.

Nutrition in the elderly — lower needs, higher risks

Nutrition in old age — 60 years and over in Indian policy — is the management of a body whose energy need falls with its basal metabolic rate and muscle mass while its need for protein, calcium, vitamin D, vitamin B12 and fluid stays the same or rises, in a person whose teeth, taste, swallowing, appetite, medicines, income and company all conspire to make eating harder. The result is that undernutrition, sarcopenia and dehydration, not obesity, are the nutritional emergencies of the elderly ward, and they are found only if someone weighs the patient and asks.

Energy needs fall by roughly a tenth or more after 60 because lean mass and activity fall, but protein needs do not: 1.0 to 1.2 g per kilogram a day, and 1.2 to 1.5 g in illness or after surgery, spread over the day with resistance exercise, is the current advice to slow sarcopenia — the loss of muscle mass and strength that leads to falls, fractures and dependence.
Calcium of 1000 to 1200 mg and vitamin D of about 800 IU a day, from sunlight, milk and curd, ragi and supplements, protect the bone that osteoporosis is thinning; vitamin B12 becomes deficient through atrophic gastritis, achlorhydria, metformin and proton-pump inhibitors even on a diet that contains it, and presents as anaemia, neuropathy and confusion that is mistaken for dementia.
Fluid and fibre: thirst is blunted, the kidney concentrates less and diuretics add to loss, so 1.5 to 2 litres a day (about 30 mL/kg) is offered on a schedule rather than on demand, and 25 to 30 g of fibre from whole grains, fruit and vegetables with that fluid prevents the constipation that immobility, opioids and iron worsen; dehydration presents as confusion, low blood pressure, constipation and a urinary infection.
Eating itself becomes the obstacle: missing teeth and ill-fitting dentures call for soft, moist foods, not a liquid diet; reduced taste and smell call for herbs, spices and lemon rather than more salt; dysphagia after stroke or in Parkinson's disease calls for texture-modified food and thickened fluids after a swallowing assessment; and a hospital tray left out of reach is a meal not eaten.
Drugs interact with food: diuretics waste potassium and magnesium, metformin and proton-pump inhibitors lower B12, warfarin needs a steady vitamin K intake, levothyroxine is kept away from calcium and iron, digoxin and many others kill appetite, and a sulfonylurea in a patient who eats little causes hypoglycaemia; polypharmacy is itself a cause of malnutrition and is reviewed as one.
Screening is the intervention: the Mini Nutritional Assessment (the short form scores 12 to 14 as normal, 8 to 11 as at risk and 0 to 7 as malnourished) or MUST on admission and at each visit, a weight on the same scale each time, and the rule that unintentional loss of 5 per cent in a month or 10 per cent in six months is malnutrition until explained — by depression, dementia, dysphagia, dentition, drugs, disease or destitution.
The social prescription: elderly people who live alone, are poor, bereaved or depressed eat badly, so the plan includes company at meals, help with shopping and cooking, the National Programme for Health Care of the Elderly's geriatric clinic, the Annapurna scheme's monthly grain for the destitute elderly without a pension, and the old-age pension itself; small frequent meals, a fortified milk drink between them and a daily walk in the sun are the ward-level version.

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