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← Paediatrics and child health indexChapter sections
Role and principlesAssessment and patient selectionBaseline assessmentInterventionsTargets, monitoring and follow-upSpecial situationsCommon pitfallsQuestionsSources
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Educational draft · awaiting clinical reviewThe full textbook explains uncertainty but does not replace live national or local guidance, specialist advice, or current prescribing information.

Introducing complementary foods

Paediatrics and child health · UK scope · Sources checked 27 Aug 2026 · Clinical review pending

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Choking or anaphylaxis

Inability to breathe or cough, silent cyanosis or reduced consciousness during eating indicates choking. Sudden airway, breathing or circulation compromise after food indicates anaphylaxis, even without a rash.

Action: For choking, use the age-appropriate basic life-support sequence, call 999 and begin CPR if unresponsive; do not perform blind finger sweeps. For anaphylaxis, give intramuscular adrenaline into the anterolateral thigh using the age-appropriate dose, call 999, position according to physiology and repeat after 5 minutes if airway, breathing or circulation problems persist.

Role and principles

Support families to introduce varied safe foods from around 6 months while breast milk or first infant formula remains central, recognise developmental readiness, introduce allergens safely, progress textures, prevent choking and nutritional deficiency, and respect cultural and family preferences.

Complementary feeding bridges exclusive milk feeding and the family diet while motor, sensory and gastrointestinal skills mature. Around 6 months, energy and micronutrient needs, especially iron, increasingly exceed what milk alone provides.

Readiness is developmental rather than a single birthday. Stable head and trunk control, purposeful reach and safe swallowing matter; gestational correction and individual neurodevelopment are important after preterm birth.

The first weeks are for learning rather than achieving a fixed portion. Offer when alert, begin with a small amount, allow exploration and continue usual milk according to cues.

Texture progression exercises chewing and oral coordination even before teeth erupt. Persistently smooth purées can postpone skill acquisition, while unsafe hard or round pieces increase choking risk.

Food-allergy prevention now favours timely oral exposure. Introducing cooked egg and peanut in age-appropriate forms from around 6 months and continuing regularly after tolerance is established avoids an unnecessary period of exclusion.

Assessment and patient selection

Developmental readiness

Assess corrected age, stable sitting and head control, purposeful grasp, hand-to-mouth coordination and ability to swallow food rather than tongue-thrust it out.

Dietary pattern

Record milk type and volume, meals, textures, iron-rich foods, drinks, vitamins, allergen exposure and foods excluded for cultural, ethical, sensory or medical reasons.

Meal observation

Observe seating, food shape and consistency, self-feeding, chewing, swallow, cough, gag, respiratory change, caregiver prompts, meal duration and satiety response.

Allergy risk

Ask about eczema severity, existing food allergy, prior reactions, asthma and family concern; distinguish immediate symptoms from nonspecific crying or physiological reflux.

Nutrition outcome

Plot weight and length, review stool and urine, examine pallor, tone, mouth, skin and bone signs, and assess developmental progress.

Family context

Explore food access, cooking facilities, literacy, childcare practices, cultural expectations and parental anxiety without presenting a single feeding style as morally superior.

Red flags requiring action

  • Coughing, choking, wet breathing, colour change, recurrent chest infection or prolonged exhaustion with meals suggests dysphagia and aspiration.
  • Immediate urticaria, angioedema, wheeze, repetitive vomiting, floppiness or collapse after a food requires an allergy emergency plan and specialist assessment.

Baseline assessment

  1. 01
    First-line: feeding and growth assessmentFirst stepFirst line
    Why
    Confirm readiness, nutritional adequacy, texture safety and growth trajectory.
    Interpretation and limitations
    A well infant growing along a centile usually needs guidance rather than laboratory testing; observed swallowing symptoms or faltering growth changes the pathway.
  2. 02
    Allergy-focused clinical history
    Why
    Decide whether a reported reaction is compatible with IgE-mediated or non-IgE food allergy.
    Interpretation and limitations
    Timing, reproducibility, dose and objective organ involvement guide referral and testing; do not order food panels in an asymptomatic infant.
  3. 03
    Targeted blood count, ferritin and micronutrients
    Why
    Assess pallor, faltering growth or a severely restricted diet.
    Interpretation and limitations
    Select tests from the dietary and clinical deficit; ferritin may be falsely normal with inflammation and B12 risk needs urgent consideration.
  4. 04
    Clinical feeding and swallow assessment
    Why
    Evaluate cough, choking, prolonged feeds or texture failure.
    Interpretation and limitations
    Speech and language therapy assessment guides texture and whether videofluoroscopy or endoscopic swallow evaluation will answer a specific aspiration question.

Interventions

01StartBegin responsively around 6 monthsFirst stepThe infant shows all three developmental readiness signs.+
  1. 1Seat upright, offer a small amount when alert and continue usual breast milk or first infant formula.
  2. 2Include vegetables, an iron-rich food and safe finger foods while progressing texture.
  3. 3Follow cues, stop at satiety and repeat exposures without pressure.
02AllergensIntroduce one at a timeThe infant is well and developmentally ready for complementary foods.+
  1. 1Choose an age-safe form such as well-cooked egg or smooth peanut paste thinned into familiar food.
  2. 2Give a small amount in daytime, observe, and seek emergency help for airway, breathing or circulation symptoms.
  3. 3If tolerated, include it regularly; obtain clinician advice first for severe eczema or established allergy.

Targets, monitoring and follow-up

  • Review milk intake, food variety, iron sources, allergens maintained in the diet and vitamin use as meals increase.
  • Plot weight and length only as clinically indicated; avoid praising larger portions or equating size with feeding success.
  • Ask about texture progression, self-feeding, gagging, cough, constipation and meal duration.
  • For a new allergen, document form, approximate amount, symptoms and timing, and provide a clear emergency plan when allergy is suspected.
  • Revisit choking hazards as mobility, childcare and family foods change.
  • Check teeth and advise brushing with age-appropriate fluoride toothpaste from first tooth eruption.
  • For restricted diets, schedule dietitian review and repeat targeted micronutrient assessment according to intake and growth.
  • Screen practically for food insecurity and connect the family with Healthy Start and local support.

Special situations

Readiness has three parts

Head control, coordinated reach and swallowing should occur together; chewing fists or waking at night alone does not show gastrointestinal readiness.

Gagging protects

Gagging is often noisy with airflow and can occur during texture learning; choking may be silent because the airway is blocked.

Tolerance needs maintenance

A single uneventful taste does not establish lasting inclusion; continue tolerated allergens regularly in an age-safe form.

Iron is the nutritional pivot

As fetal iron stores decline, daily iron-rich complementary foods become more important even when milk feeding continues well.

Responsive structure is active care

Providing predictable meals and safe choices while respecting refusal gives more support than either force or unrestricted grazing.

Common pitfalls

  1. 01

    Do not start solids because a young infant wakes at night or appears large.

  2. 02

    Do not delay allergens until toddlerhood without a clinical indication.

  3. 03

    Do not introduce several allergens together when a reaction would be hard to attribute.

  4. 04

    Do not give whole nuts, whole grapes, hard raw vegetable rounds or coin-shaped sausage pieces.

  5. 05

    Do not give honey before 12 months or rice drinks before 5 years.

  6. 06

    Do not replace breast milk or first infant formula with cow's milk as the main drink before 12 months.

  7. 07

    Do not rely on fruit and vegetables alone; include energy, fat, protein and iron.

  8. 08

    Do not force, distract or bribe a child to override satiety cues.

  9. 09

    Do not recommend exclusions without nutritionally equivalent affordable replacements.

Practice

Two practice questions

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Paediatrics and child healthOriginal SBA

Allergen introduction

A healthy 6-month-old with no eczema is ready for solids. What is the best advice about peanut and egg?

Choose one answer, then submit
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Sources and review status4 sources · checked 27 Aug 2026 · clinical review pending+
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Apply principles in context and verify current guidance when a decision affects care. Source check completed 27 Aug 2026; clinical approval remains outstanding.

  • NHS foods to avoid giving babiesHoney, salt, sugar, whole nuts, milk, rice-drink and food-safety advice.
  • NHS food allergies in babies and young childrenTiming, one-at-a-time introduction and continued inclusion of tolerated allergens.
  • NHS Best Start in Life how to start weaning your babyAround-6-month timing and the three developmental readiness signs.
  • NICE NG194 postnatal care recommendationsResponsive feeding and postnatal nutrition support principles.

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes

Authoring stateComplete draftClinical stateAwaiting reviewJurisdictionUnited Kingdom

Allergen introduction should be controlled: the infant is well, the food is offered early in the day, only one new allergen is introduced at a time and the caregiver knows how to recognise an immediate reaction.

Dietary quality is built from variety: vegetables and fruit, starchy food, protein and iron sources, and full-fat dairy foods where tolerated. Full-fat products help meet energy needs under 2 years.

Salt and sugar shape preference as well as immediate intake. Family food can often be adapted by removing the infant portion before salt is added and avoiding sweetened commercial snacks.

Cow's milk can be used in cooking from around 6 months but lacks the iron profile needed as the main drink in infancy. First infant formula remains suitable to 12 months when breast milk is not used.

Feeding is relational. Mess, variable appetite and food refusal are normal; repeated neutral opportunities, shared meals and stopping at satiety protect self-regulation.

Cultural foods are an asset. Identify safe texture modifications and nutrient substitutions rather than replacing the household diet with unfamiliar menus.

A family facing food insecurity needs concrete access support. Restrictive advice without affordable substitutions can reduce dietary quality and worsen growth.

Key points

  • Introduce complementary foods at around 6 months when the infant can remain seated with steady head control, coordinate eyes, hands and mouth, and swallow food rather than push it out.
  • Do not use night waking, fist chewing or wanting extra milk alone as readiness signs. Avoid routine solids before 4 months; seek individual advice for preterm or developmentally delayed infants.
  • Breast milk or first infant formula remains the main drink through the first year. Follow-on formula is unnecessary, and unmodified cow's milk should not be the main drink before 12 months.
  • Start with small responsive tastes and progress promptly through mashed, lumpy and finger foods. Texture variety before about 9 months supports oral skill development; gagging is noisy and different from silent choking.
  • Offer an iron-rich food daily, such as meat, fish, egg, beans, lentils, tofu or iron-fortified cereal, paired with vitamin C-rich food for plant iron.
  • Introduce common allergens one at a time in small amounts from around 6 months; once tolerated, keep them in the diet regularly. Do not delay egg or peanut without a clinical reason.
  • Infants with severe eczema or an existing food allergy need clinician-led advice before peanut or egg introduction, but blanket avoidance can increase rather than reduce allergy risk.
  • Seat the infant upright and supervise continuously. Modify round, firm foods, quarter grapes lengthwise, cook hard vegetables, spread nut butter thinly and give no whole nuts under 5 years.
  • Give no honey before 12 months, avoid unpasteurised foods and raw shellfish, limit salt and free sugar, and do not offer rice drinks under 5 years because of arsenic exposure.
  • Use an open cup or free-flow cup from around 6 months and avoid juice, sweetened drinks and prolonged bottle use. Water can accompany meals once solids begin.
  • A planned vegan diet needs reliable vitamin B12 plus review of iron, iodine, calcium, vitamin D, energy, protein and omega-3 sources with a paediatric dietitian.
  • Responsive feeding means the adult chooses what, when and where; the child chooses whether and how much. Repeated calm exposure is preferable to force, distraction or reward.
  • Bilious vomiting, haematemesis, blood in stool, severe abdominal distension or food impaction requires urgent medical assessment rather than dietary experimentation.
  • Weight faltering, dehydration, persistent diarrhoea, steatorrhoea or developmental regression suggests inadequate intake, malabsorption or systemic disease.
  • Loss of feeding skills, marked texture restriction, distress at the sight of food or meals regularly exceeding 30 minutes warrants multidisciplinary feeding assessment.
  • No reliable vitamin B12 source in a vegan infant or parent, or extreme food restriction imposed without replacement, creates urgent nutritional risk.
  • 05
    Specialist allergy testing or challenge
    Why
    Confirm suspected food allergy when history warrants it.
    Interpretation and limitations
    Skin-prick or specific IgE testing supports immediate allergy but does not predict severity; supervised oral food challenge is the reference standard when diagnosis remains uncertain.
    • 03Choking preventionModify shape and textureFinger food or family food is offered.+
    1. 1Sit the infant upright with close active supervision.
    2. 2Cook hard foods and cut cylindrical or round foods lengthwise into narrow pieces; avoid whole nuts and hard chunks.
    3. 3Teach caregivers the difference between gagging and choking and encourage infant first-aid training.
    04DifficultyEscalate persistent feeding problemsEscalationCoughing, prolonged meals, restricted textures or growth concern persists.+
    1. 1Assess acute red flags, plot growth and observe a representative meal.
    2. 2Refer to paediatrics, dietetics and speech and language therapy according to aspiration and nutrition risk.
    3. 3Maintain safe positive oral experiences while investigating medical, motor, sensory and relational causes.