Most babies can start eating baby food at about 6 months old. Both the American Academy of Pediatrics and the Dietary Guidelines for Americans recommend introducing solid foods around this age, and starting before 4 months is not recommended. That said, the exact right moment depends less on the calendar and more on your baby’s individual development.
Why 6 Months Is the Target
Before 6 months, babies get everything they need from breast milk or formula. Their digestive systems are still immature and need time before they can fully process solid foods. Around the 6-month mark, a few things converge: iron stores from birth start running low, the digestive tract becomes better equipped to handle new foods, and most babies develop the physical skills needed to eat from a spoon.
Iron is the biggest nutritional driver behind this timeline. From 7 to 12 months, babies need about 11 mg of iron per day, a surprisingly high amount that breast milk alone can’t provide. Iron-rich solid foods fill that gap at exactly the point when it opens.
Signs Your Baby Is Ready
Age is a starting point, not a finish line. Some babies hit the readiness milestones a few weeks before or after their 6-month birthday. Look for these physical cues before offering that first spoonful:
- Steady head control. Your baby can hold their head up without wobbling while sitting in a high chair or on your lap.
- Sitting with support. They don’t need to sit independently, but they should stay upright with minimal help.
- Interest in food. They watch you eat, reach for your plate, or open their mouth when food comes near.
- Loss of the tongue-thrust reflex. Young infants automatically push objects out of their mouths with their tongues. When this reflex fades, a baby can move food to the back of the mouth and swallow it.
If your baby hasn’t shown these signs by 6 months, give it a couple more weeks and try again. Most babies are ready somewhere between 5 and 7 months.
Why Not Start Earlier?
It can be tempting to start solids at 3 or 4 months, especially if your baby seems hungry or interested. But introducing food too early carries real risks. A baby’s digestive tract isn’t prepared to process anything beyond milk before about 4 months. Loose, watery, or mucus-filled stools are a sign the gut is irritated by foods introduced too quickly.
There’s also a weight concern. Adding cereal to a bottle, a common old-school suggestion, increases calorie intake beyond what a young baby needs and can lead to excessive weight gain. It also raises the choking risk because babies that young don’t have the oral motor skills to manage anything thicker than liquid.
What to Offer First
There’s no single “right” first food, but the best options are soft, pureed, and rich in iron or other nutrients your baby is starting to need. Good choices include pureed sweet potato, mashed avocado, pureed peas, iron-fortified infant cereal mixed with breast milk or formula, and pureed meats like chicken or turkey. Single-ingredient foods are ideal at the start so you can identify any reactions.
All food should be soft or pureed to prevent choking. As your baby gets more comfortable over the following weeks, you can gradually introduce thicker textures. Until age 1, avoid hot dogs, whole grapes, nuts, seeds, chunks of raw vegetables or firm fruit, popcorn, sticky candy, and chunks of peanut butter or cheese. These are all choking hazards for babies who are still learning to chew and swallow.
Introducing Allergens Early
Guidelines on allergenic foods have shifted dramatically in recent years. Rather than delaying peanuts, eggs, and other common allergens, current recommendations encourage introducing them early, right alongside other first foods around 6 months.
For babies at higher risk of peanut allergy (those with severe eczema, an egg allergy, or both), peanut-containing foods can be introduced as early as 4 to 6 months. Research shows this actually reduces the risk of developing a peanut allergy. The key is using age-appropriate forms: thin peanut butter mixed into a puree, or peanut puff snacks that dissolve easily. Never give a baby whole peanuts or thick globs of peanut butter. If your baby has severe eczema or a known egg allergy, a blood test or skin prick test may be recommended before that first peanut exposure.
How Much and How Often
When you’re just starting out, “meals” are tiny. A few teaspoons of pureed food once or twice a day is plenty for a 6-month-old. Breast milk or formula still provides the majority of calories and nutrition at this stage. Think of early solids as practice, not a primary food source.
By the time your baby is closer to 8 or 9 months, you’ll work up to about 3 small meals and 2 to 3 snacks per day, with something to eat or drink roughly every 2 to 3 hours. Let your baby set the pace. When they turn away, close their mouth, or lose interest, the meal is over. Forcing extra bites teaches babies to ignore their own fullness signals.
Water and Other Drinks
Once your baby starts solids at 6 months, you can begin offering small sips of water. The CDC recommends 4 to 8 ounces of water per day for babies between 6 and 12 months. That’s a few sips with meals, not a full bottle. Breast milk or formula remains the primary drink throughout the first year. Juice, cow’s milk, and sweetened drinks aren’t appropriate before 12 months.
Watch for Digestive Changes
Starting solids changes what comes out the other end, and that’s normal. Stool color, consistency, and smell will shift depending on what your baby eats. Some mild changes in texture or frequency are expected. If stools become extremely loose, watery, or full of mucus, it usually means the digestive tract is irritated. Pulling back on the amount of solids and reintroducing them more slowly typically resolves the issue.
When you introduce a new food, wait a few days before adding another. This makes it easier to spot a reaction, whether that’s a rash, vomiting, diarrhea, or unusual fussiness. Most babies tolerate new foods without any trouble, but spacing things out gives you a clear picture if something doesn’t agree with them.