For roughly the first six months of life, babies eat only one thing: breast milk, formula, or a combination of both. After that, solid foods gradually enter the picture, starting with soft, simple options and expanding to a wide variety of textures and flavors by a baby’s first birthday. The timeline for all of this depends on your baby’s individual development, but the general progression is consistent.
Birth to 6 Months: Milk Only
Breast milk or iron-fortified infant formula provides everything a baby needs nutritionally for the first six months. The Dietary Guidelines for Americans recommends exclusive breastfeeding for about the first six months, with continued breastfeeding alongside solid foods until at least 12 months. The American Academy of Pediatrics supports breastfeeding for up to two years or longer.
Formula-fed babies follow a predictable pattern of increasing volume. At one month, most babies take 2 to 4 ounces per feeding, six to eight times in a 24-hour period. By two months, that rises to 5 to 6 ounces across five to six feedings. Between three and five months, babies typically take 6 to 7 ounces per feeding, still five to six times a day. Breastfed babies regulate their own intake, so tracking ounces isn’t necessary.
One supplement is important during this stage. Babies who are breastfed, or who receive a mix of breast milk and formula, need 400 IU of vitamin D daily, starting shortly after birth. Breast milk doesn’t contain enough on its own. Formula-fed babies who drink at least 32 ounces of formula per day don’t need a separate supplement, since the formula is fortified.
Reading Your Baby’s Hunger and Fullness Cues
Rather than following a rigid clock, feeding works best when you respond to your baby’s signals. Hunger looks like fists moving to the mouth, head turning to search for the breast, lip smacking, sucking on hands, and opening and closing the mouth. When your baby is full, they’ll release the breast or bottle nipple, turn their head away, relax their body, and open their fists. Feeding right when hunger cues appear, rather than waiting until your baby is crying, makes feedings smoother for everyone.
Around 6 Months: Starting Solid Foods
Solid foods should not be introduced before 4 months, and most babies are ready around 6 months. The exact timing depends on developmental readiness, not the calendar. Look for these signs your baby is ready:
- Sits up alone or with support
- Controls their head and neck steadily
- Opens their mouth when offered food
- Swallows food instead of pushing it back out with their tongue
- Brings objects to their mouth
- Tries to grasp small objects like toys or food
That tongue-push reflex is worth paying attention to. Young babies automatically push anything solid out of their mouths. Until that reflex fades and your baby can move food from the front of their tongue to the back for swallowing, they aren’t ready for solids no matter their age.
First Foods and How to Offer Them
There’s no single “right” first food. The priority is starting with nutrient-rich options, especially foods high in iron. Babies are born with iron stores that begin to deplete around 6 months, making iron-rich foods particularly important once solids begin. Good early choices include pureed or finely mashed meats (beef, chicken, turkey), eggs, iron-fortified infant cereals, beans, lentils, tofu, and dark green leafy vegetables.
You have two main approaches for introducing solids. Traditional spoon-feeding involves offering purees and smooth foods that gradually increase in texture. Baby-led weaning skips purees entirely and lets babies self-feed with soft, appropriately shaped pieces of table food from the start. Research on both methods shows that baby-led weaning supports motor development and can encourage more independent eating habits, while spoon-feeding gives parents more control over what gets swallowed. Both are safe with supervision. Many families blend the two approaches.
Start with small amounts. In the early weeks of solids, your baby might eat only a tablespoon or two at a sitting. Breast milk or formula remains the primary source of nutrition. The goal at this stage is exposure to flavors and textures, not replacing milk feedings. Offer a wide variety of healthy foods and let your baby explore at their own pace.
Iron, Zinc, and Key Nutrients
Once solids begin, iron is the nutrient to prioritize. Foods containing heme iron, the type the body absorbs most easily, include red meat, poultry, seafood (like fatty fish), and eggs. Non-heme iron sources include iron-fortified infant cereals, beans, lentils, tofu, and dark leafy greens. Pairing iron-rich foods with fruits and vegetables high in vitamin C helps the body absorb more iron from plant sources.
Zinc is another important mineral during this period, and many of the same foods that provide iron also supply zinc: meat, beans, lentils, and fortified cereals. As your baby’s diet expands, variety naturally covers most nutritional bases.
Introducing Common Allergens
Current guidelines encourage introducing allergenic foods early rather than delaying them. Peanuts, eggs, cow’s milk products (like yogurt or cheese, not cow’s milk as a drink), wheat, soy, tree nuts, fish, and shellfish can all be introduced once your baby is eating solids, typically around 6 months.
For babies at higher risk of peanut allergy, specifically those with severe eczema or an existing egg allergy, peanut-containing foods should be introduced as early as 4 to 6 months. This early introduction has been shown to reduce the risk of developing a peanut allergy. For high-risk babies, a blood test or skin prick test may be recommended first to determine the safest way to introduce peanut. Whole peanuts and chunky peanut butter are choking hazards, so thin peanut butter mixed into a puree or dissolved in breast milk is the typical approach.
Foods to Avoid Before Age 1
A few foods are genuinely dangerous for babies under 12 months:
- Honey: Can contain spores that cause infant botulism, a serious form of food poisoning. A baby’s immature digestive system can’t neutralize these spores the way an older child’s can.
- Cow’s milk as a drink: Contains too many proteins and minerals for a baby’s kidneys to process easily and can cause intestinal bleeding. It also lacks the right balance of nutrients babies need. (Yogurt and cheese in small amounts are fine once solids are established.)
- Added sugars: Babies have limited caloric room, and every bite needs to count nutritionally. Foods and drinks with added sugars take up space without contributing the nutrients a growing baby needs.
Choking Hazards and Safe Preparation
How food is cut and prepared matters as much as what you offer. The shape, size, and texture of food should match your baby’s developmental stage. Cutting food into smaller pieces and mashing softer foods reduces risk significantly.
Common choking hazards to avoid or modify include whole grapes (quarter them lengthwise), cherry tomatoes (also quartered), raw carrots and apples (cook until soft), whole nuts and seeds, hot dogs and sausages (slice lengthwise, then into small pieces), chunks of peanut butter (thin it out instead), large chunks of cheese, popcorn, and hard candy. Round, hard, sticky, or slippery foods are the most dangerous shapes for a baby’s airway.
Gagging is different from choking. Gagging is common when babies learn to eat solids, especially with baby-led weaning, where studies report gagging in about 65% of babies. It looks alarming but is actually a protective reflex that pushes food forward before it can reach the airway. True choking, where the airway is blocked, is rare (around 12% in one study, with only 0.2% requiring medical intervention) but does happen, which is why babies should always be seated upright and supervised during meals.
Water and Other Drinks
Before 6 months, babies don’t need water. Breast milk and formula provide all the hydration they require. Once your baby starts eating solid foods around 6 months, you can offer small amounts of water: 4 to 8 ounces per day between 6 and 12 months. An open cup or straw cup helps develop oral motor skills.
Fruit juice is not recommended for babies under 12 months. It’s high in sugar and low in the fiber that whole fruit provides. If your baby is thirsty, water and breast milk or formula are the only drinks they need during the first year.
What Feeding Looks Like at 9 to 12 Months
By 9 months, most babies are eating a variety of soft foods across three small meals a day, with breast milk or formula still making up a significant portion of their calories. Textures should be progressing: mashed foods give way to soft, small pieces your baby can pick up. This is the stage where many babies develop the pincer grasp (thumb and forefinger) and start self-feeding with more precision.
Good options at this age include small pieces of soft-cooked vegetables, ripe fruits like banana or avocado, shredded or finely chopped meats, scrambled eggs, soft beans, pasta, and toast strips. The variety you introduce now shapes food preferences later. Babies who are exposed to many different flavors and textures in their first year tend to be more adventurous eaters as toddlers.
By 12 months, your baby can transition to whole cow’s milk as a drink, try most of the same foods the rest of the family eats (with appropriate modifications for size and texture), and gradually shift toward getting most of their nutrition from food rather than breast milk or formula.