Childhood Nutrition & Obesity

Nutrition in childhood is assessed against growth charts, and the same clinic sees problems at both ends. A child can be underweight for their height, or carrying more weight than their height and age would suggest, and both are read from the trend over time instead of from one reading.

Undernutrition in Indian children often comes from a diet that supplies enough grain to fill a child but too little protein, fat and micronutrients, sometimes alongside repeated infections that drain what is taken in. Iron, vitamin D, vitamin B12 and calcium shortfalls are common, and they occur in children of every body size, including heavier ones.

Excess weight builds from a long-running mismatch between what goes in and what is used, and the everyday drivers are more mundane than most families expect: sweetened drinks and packaged snacks, meals eaten away from the table, long hours of screen time, short sleep, and school days that leave almost no time for physical play. A small number of children have a hormonal or genetic cause, and the clue to those is usually a child who is gaining weight while growing poorly in height. A heavy child who is also tall is rarely hormonal.

Your paediatrician starts by measuring height and weight accurately and plotting both, then comparing them with your child's earlier measurements. Weight on its own says very little; weight read against height and against the direction of the height line says a great deal.

You will be asked to describe a typical day of eating in detail, including what is drunk, what is eaten between meals, what comes from outside the house, and who prepares the food. Sleep, screen time and the amount of active play are covered in the same conversation, and it helps to answer these honestly, since the plan is built from them.

The examination looks for consequences and for causes. Your paediatrician checks for pallor and the mouth, skin, hair and nail changes that suggest deficiency, measures blood pressure with a cuff sized for your child's arm, looks for darkened velvety skin at the neck and armpits that can indicate insulin resistance, feels the abdomen and the thyroid, assesses the stage of puberty, and examines the knees, hips and feet in a heavier child. Family history of diabetes, high blood pressure and heart disease is recorded, since it changes how closely your child is followed.

A growing child gives you an advantage an adult does not have. For many overweight children the aim is to hold weight steady while height continues to increase, so the proportions correct themselves over a year or two without any period of hunger. Weight loss is targeted only in older children and adolescents, and then gradually.

Expect the timeline to be six to twelve months before the change is visible on the chart, with review every two to three months. Changes made at the level of the whole family work; changes imposed on one child alone rarely last, and they carry a cost in how that child feels about food and about themselves.

Correcting undernutrition moves faster. Weight responds within weeks of a diet with enough energy and protein, while height catches up over the following six to twelve months. Where anaemia is present, treating it takes about three months, and it continues for a further period after the blood count normalises in order to refill the body's stores. Energy and concentration usually improve before the numbers do.