Which foods help a child gain weight?

Energy-dense home foods: ghee or butter on rice, dosa and chapati, groundnut or dal podi, banana, mango and chikoo, milk, curd and paneer, eggs, potato and sweet potato, and nut or seed powder in porridge or milk. Steady gain over months is healthier than fast gain.

Should I give my child a weight gain syrup or powder?

Not without your paediatrician. Appetite syrups and weight gainer powders can hide a real problem and are rarely needed. Most children improve with a routine, energy-rich food and play.

My child drinks a lot of milk but eats little. Is that a problem?

It can be. Too much milk fills a child up and leaves less room for food, and milk is low in iron. For most children over two, two to three cups a day is plenty; ask your paediatrician what suits your child.

Does deworming help a thin child?

Worm infections can reduce appetite and growth. India runs National Deworming Day for children; ask your paediatrician whether your child is due for a dose.

Weight Gain Foods for Kids: A South Indian Plan

Q: How do I know if my child is underweight?

One weight does not tell you. Your paediatrician plots height and weight on a growth chart (WHO charts up to 5 years, Indian Academy of Pediatrics charts from 5 to 18 years) and checks whether your child grows along their own line. Falling across lines over months is the warning sign.

"He eats like a bird." "She only wants biscuits." "Everyone says she is too thin." If this sounds like your home, you are not alone. Many children go through phases of small appetite, and some are simply lean and growing well. The first step is to find out which one your child is.

Is your child really underweight?

You cannot tell from one weight, or by comparing with a cousin. Your paediatrician plots your child's height and weight on a growth chart (the WHO charts up to 5 years, and the Indian Academy of Pediatrics charts from 5 to 18 years) and looks at the trend over months. A child who stays on their own growth line is usually fine, even if they look thin. A child whose weight falls across lines needs a closer look.

Undernutrition is still common in India. In NFHS-5 (2019-21), 32.1% of children under five were underweight, 35.5% were stunted (short for their age) and 19.3% were wasted (thin for their height).

Signs that need a paediatrician first

Weight is going down, or has not gone up for 2 to 3 months
Poor appetite with fever, cough, stomach pain, loose motions or vomiting
Tiredness, pale skin or frequent infections
Slow growth in height as well as weight
Swelling of the feet or face

These can point to infections, worms, anaemia, digestive problems or other conditions that need treatment first.

Common reasons a healthy child stays thin

Filling up between meals on milk, juice, biscuits or chips
Screens at mealtimes, so the child eats slowly and stops early
Long gaps at school, or a skipped breakfast
Small portions of energy-dense food and large portions of watery food
Pressure to eat, which often makes children eat less
Being very active without enough snacks

Energy-rich South Indian foods for children

Ghee or butter on rice, dosa, idli, chapati and pongal
Groundnut podi, dal podi or ellu (sesame) podi mixed with ghee
Coconut chutney, and coconut milk in kurma
Paneer, curd and milk, and buttermilk with meals
Eggs, if you eat them: egg dosa, boiled egg, egg curry
Banana, mango and chikoo
Potato, sweet potato, raw banana and yam, roasted or in a curry with a little oil
Ragi malt or porridge with milk and jaggery
Nut and seed powder (almond, groundnut, cashew, flax) stirred into porridge or milk. Whole nuts are a choking risk for children under 5.

A sample day for a school-age child

An example only. Portions depend on age, size and appetite.

Breakfast before school

2 to 3 idlis or a dosa with ghee and groundnut chutney, and an egg or a small glass of milk

Short-break snack

A banana, or a small box of sundal

Lunch box

Ghee rice or lemon rice with peanuts, with dal and a vegetable side; or curd rice with pomegranate; or a paneer or egg roll

After school

Ragi malt with milk, a paneer sandwich, or a fruit with nut powder sprinkled on top

Dinner

Chapati or dosa with dal, paneer or chicken curry and a vegetable

Mealtime habits that help

Fixed times for meals and snacks, with only water in between.
Family meals without screens.
Small portions with second helpings, instead of one big plate.
No force and no bribes. Offer, praise, and let the child decide how much.
Milk after food, not before, and not a whole day's worth. Too much milk fills a child up and is low in iron.
Outdoor play every day. Active children usually eat better.

Weight gain syrups and powders

Appetite syrups, tonics and weight gainer powders are rarely needed and can hide a real problem. Use them only if your paediatrician advises it.

Babies under 2 years

Babies and toddlers have different needs: breastfeeding, first foods, iron and regular growth checks. Follow your paediatrician's advice for them; this article is for older children.

When to get a personal plan

If your child's growth line is falling, or mealtimes have become a daily fight, a plan built around your child's taste, school timings and your cooking makes it easier. At Healthy Diet Studio in Mudichur, near Tambaram, Chennai, dietitian Bhuvana B plans weight gain for children alongside your paediatrician and tracks height and weight at every review.

Sources

WHO child growth standards, 0 to 5 years, World Health Organization
WHO growth reference, 5 to 19 years, World Health Organization
Revised IAP growth charts for height, weight and body mass index for 5- to 18-year-old Indian children, Indian Pediatrics, 2015
National Family Health Survey (NFHS-5) 2019-21, India fact sheet, Ministry of Health and Family Welfare

This article is general nutrition information, not medical advice. Talk to your doctor before changing your diet if you have a health condition or take medicines.

Weight gain foods for kids: a South Indian plan for a thin child