Why does my child eat things that are not food?

Some children chew a sleeve or mouth an object and spit it out. Others swallow paper, soil, paint flakes, hair, fabric, faeces or small pieces of household material. These are not all the same behaviour and they do not carry the same risk.

Pica is the medical term used when a person persistently eats non-food substances beyond ordinary developmental exploration. A parent does not need to establish the diagnosis before asking for help.

Start with the exact item

“Eating everything” is difficult for a clinician or school to act on. Record:

• the substance and, where possible, the product or material;
• whether it was licked, chewed, held in the mouth or swallowed;
• an approximate amount;
• the time and place;
• what the child was doing immediately beforehand;
• whether they sought the item, found it incidentally or ate it during distress;
• what happened when an adult intervened; and
• any pain, choking, vomiting, constipation, dental damage, blood or illness afterwards.

Keep packaging or a product name when it can be done safely. For paint, soil, cleaning products, plants or unknown materials, location may matter. Do not handle faeces, chemicals or sharp material without appropriate precautions.

Cambridgeshire and Peterborough Children's Health Services recommends recording what is eaten, how often and in which places, then sharing that information with the professionals involved.¹

Ask for health assessment

Pica may be associated with learning disability or autism, but that does not explain why one child is swallowing a particular substance. Physical health, nutrition, teeth, medication, development and the pattern of the behaviour may all need consideration.

Contact the GP, health visitor or existing paediatric team. Explain whether ingestion is repeated, what the child seeks and the immediate risks. Ask:

• Does the child need examination or tests after this ingestion?
• What physical and nutritional assessment is appropriate?
• Could constipation, pain, dental difficulty or another health condition be contributing?
• Which service will coordinate follow-up?
• What should home and school monitor while waiting?

Do not start iron, zinc or other supplements because pica is sometimes discussed alongside nutritional deficiency. Testing and treatment need clinical interpretation, and some supplements can be harmful in the wrong amount.

Include the dentist when teeth or gums are damaged or the child repeatedly chews abrasive or hard material.

Treat each ingestion according to its risk

Most non-food items are not equally dangerous. A small piece of plain paper and a button battery require completely different responses.

Seek immediate medical advice for suspected ingestion of:

• a button battery;
• one or more magnets;
• a sharp or pointed object;
• medicine or a nicotine product;
• bleach, detergent, cleaning fluid, hand sanitiser or another chemical;
• paint, unknown soil, a poisonous plant or an unidentified substance; or
• any object or amount that the relevant health service considers dangerous.

Do not wait for symptoms after a possible poisoning. NHS guidance says symptoms may take hours or days and advises obtaining medical advice quickly when poisoning is possible.² Do not make the child vomit or give food or drink unless instructed by a healthcare professional.

When you call, have the child's age and approximate weight available, along with the item, brand or substance, estimated amount, time, current symptoms and any packaging. Say clearly when the amount or timing is unknown. Follow the service's instructions about bringing the container or object; do not put yourself at risk retrieving contaminated material.

An apparently well child may still need assessment after a high-risk ingestion. Conversely, do not delay emergency help while trying to create a perfect account. Give the best information you have and update it if more becomes known.

Call emergency services for choking, breathing difficulty, collapse or immediate danger. Severe abdominal pain, repeated vomiting, a swollen abdomen, blood, marked drowsiness or inability to swallow also need urgent assessment.

Reduce access without relying on vigilance alone

Make a risk map of the places the child actually uses: bedroom floor, craft area, garden, playground, classroom, school transport, bathroom and relatives' homes.

Prioritise:

• locking medicines, chemicals and cleaning products away;
• securing battery compartments and loose batteries;
• removing magnets and sharp small objects;
• storing the child's repeatedly sought materials out of reach or in locked storage;
• checking damaged walls, foam, furniture or clothing;
• clearing floors and inspecting high-risk outdoor areas; and
• agreeing supervision that matches the current risk.

Northamptonshire Healthcare NHS guidance highlights household substances, batteries, wires, outdoor materials and small swallowed objects when planning pica safety.³

No family can remove every piece of paper or leaf from the world. Focus first on high-consequence items and the substances this child actively seeks. Review the map when the pattern changes.

Make reporting safer than hiding

A child who expects anger may conceal an item, swallow quickly or deny what happened. Say:

“You are not in trouble. I need to know what went in your mouth so I can keep your body safe.”

Create a word, sign, picture or device button for “I ate it”, “I want to chew” or “help”. Respond quickly and neutrally. Praise disclosure without minimising the health risk.

If an adult must block an imminent ingestion, use only the intervention necessary for immediate safety and follow the child's existing professional plan. Do not improvise restraint as a routine pica programme.

Look for a pattern without declaring a cause

The record may show that pica increases during unstructured waiting, when a particular material is available, around hunger, during distress or in one environment. That pattern can guide prevention, but it does not prove a sensory, nutritional or behavioural cause.

An appropriately selected safe alternative may sometimes help with a chewing need, but it must match the child's age, swallowing and choking safety and clinical advice. Crunchy foods, chew items and frequent snacks are not automatically safe for every child, especially when feeding or swallowing concerns already exist.

Ask professionals to define the aim of any strategy and how success will be measured. Fewer opportunities because dangerous items are locked away is valuable risk reduction; it does not necessarily mean the urge has changed.

Build one plan across settings

School or nursery needs the current high-risk item list, supervision arrangements, safe communication, recording method and emergency response. Specify who contacts the family and health services after an ingestion. Do not rely on a general instruction to “watch closely”.

The child should still have access to learning, play and community life. Adapt activities by removing or substituting dangerous materials, checking the room and positioning support discreetly. Avoid isolating the child with nothing to do; unstructured time may increase access to whatever is nearby.

Review the plan when the child begins seeking a new substance, frequency rises, physical symptoms appear or current controls no longer work.

Pica needs calm seriousness. Name what was swallowed, act on the immediate risk, make the environment safer and ask for medical assessment. Your child is not bad for having the urge, but their body still needs adults to respond accurately every time.

Footnotes

1. Cambridgeshire and Peterborough Children's Health Services describes pica as eating non-edible items, sets out possible health complications and recommends recording items, frequency and settings. ↩

2. NHS poisoning guidance advises obtaining medical help quickly when poisoning is possible because symptoms may be delayed and warns against inducing vomiting or giving anything by mouth unless directed. ↩

3. Northamptonshire Healthcare NHS Foundation Trust guidance identifies risks including poisoning, bowel obstruction, dental injury and infection and gives practical safety considerations across home and school. ↩