The Short Answer
Babies are ready to start solid foods at around 6 months of age — not before 4 months, and ideally not after 7 months. This recommendation is supported by the WHO, AAP, NHS, and Helsedirektoratet.
Why 6 Months?
Starting solids too early or too late carries risks:
Too early (before 4 months):
- The digestive system is not mature enough to process solid food
- Increased risk of choking — the tongue-thrust reflex that pushes food out is still dominant
- Associated with higher risk of obesity, food allergy, and digestive upset
Too late (after 7–8 months):
- Increased risk of iron deficiency (breast milk alone no longer meets iron needs after 6 months)
- Harder to accept new textures and flavours — a natural "flavour window" may close
- WHO and Helsedirektoratet both identify 6 months as the ideal introduction point
Signs of Readiness — All Three Must Be Present
Do not start solids based on age alone. Look for all three signs:
- Can sit up with minimal support and hold their head steady
- Has lost the tongue-thrust reflex — does not automatically push food out with their tongue
- Shows interest in food — reaches for food, watches others eat, opens mouth when food approaches
Note: Chewing fists, waking at night, or wanting more milk are NOT reliable signs of solid food readiness.
What Foods to Start With
The best first foods are:
- Iron-rich foods: Pureed meat, chicken, or fish; iron-fortified baby cereal; mashed legumes (lentils, chickpeas)
- Vegetables: Sweet potato, butternut squash, pea puree, broccoli
- Fruits: Pureed or mashed banana, mango, pear, apple
- Healthy fats: Avocado, full-fat yoghurt (plain, from 6 months)
AAP and NHS both recommend introducing allergenic foods (peanut, egg, fish) early (from 6 months) rather than avoiding them, as early introduction reduces allergy risk.
How to Start
- Offer 1–2 teaspoons once daily to start, gradually increasing
- Introduce one new food every 3–5 days to identify any allergic reactions
- Milk (breast or formula) remains the primary nutrition source until 12 months
- Never add salt, sugar, or honey to baby's food
- Expect mess and refusal — it takes 10–15 exposures for some babies to accept a new food
What to Avoid Under 12 Months
- Honey (risk of infant botulism)
- Cow's milk as a main drink (formula or breast milk only)
- Whole nuts (choking hazard)
- Added salt and sugar
- Certain fish high in mercury (shark, swordfish, tilefish)
See our full guide on Foods to Avoid for Babies Under 1.
Explore Tools
Use our SmartStart Food Guide to find age-appropriate foods and track your baby's food introduction journey.
Related Articles
Sources
- World Health Organization (WHO) — Complementary Feeding
- American Academy of Pediatrics (AAP) — Starting Solid Foods
- NHS Start4Life — First Foods
- Helsedirektoratet — Spedbarnsernæring