Few parenting topics generate as much distress as infant feeding, and much of that distress comes from the gap between public health messaging and individual experience.
Being clear about what the evidence shows, and what it doesn't, may help.
What the evidence supports
Health organisations recommend exclusive breastfeeding for around the first six months, with continued breastfeeding alongside other foods thereafter.
The evidence base includes associations with reduced gastrointestinal and respiratory infections in infancy, and some evidence relating to other outcomes.
The strength of evidence varies considerably by outcome. Effects on infection in infancy are among the better supported. Claims about long-term outcomes including cognitive development are more contested, with sibling studies and studies controlling more thoroughly for socioeconomic factors generally finding smaller effects than earlier observational work.
Effect sizes also vary substantially by context. In settings without safe water and reliable sanitation, the difference in infant mortality is very large. In high-income settings with clean water, the absolute differences in most outcomes are considerably smaller.
That contextual variation is frequently absent from messaging, which tends to apply the same framing everywhere.
What the messaging doesn't say
Several things that would be useful to state alongside the recommendation.
Breastfeeding is frequently difficult. A substantial proportion of women who intend to breastfeed encounter significant problems — pain, latch difficulties, supply concerns, tongue tie, mastitis. Rates of stopping earlier than intended are high in many countries.
Support is frequently inadequate. Skilled breastfeeding support makes a substantial difference and is unevenly available. Many difficulties are resolvable with good support and become insurmountable without it.
Some women cannot. Insufficient glandular tissue, certain medical conditions, certain medications, previous surgery, and other factors mean that for some people it isn't possible regardless of effort or support.
Circumstances matter. Return to work, other children, health difficulties, mental health, and lack of support are real constraints rather than insufficient commitment.
The cost of the pressure
There's reasonable evidence that difficulty with breastfeeding, and not meeting one's own intentions, is associated with poorer maternal mental health outcomes.
Which creates a genuine tension. Public health messaging aims to increase breastfeeding rates because of population-level benefits. The same messaging, experienced individually, can produce guilt and distress in people for whom it didn't work out.
Both the population-level goal and the individual harm are real, and the resolution is probably better support rather than either abandoning the recommendation or delivering it without acknowledgement of difficulty.
Formula feeding, practically
Since a large proportion of babies receive formula at some point, practical information matters and is frequently withheld or delivered grudgingly.
Infant formula is regulated with compositional requirements, and standard first infant formula from any manufacturer meets the same nutritional standards. Expensive brands are not nutritionally superior.
Preparation matters for safety. Powdered formula is not sterile, and guidance in many countries specifies preparing with water at a sufficient temperature to kill potential bacteria, cooling appropriately before feeding. Following the specific guidance for your country matters.
Follow-on formulas and toddler milks are marketed heavily and are generally not necessary — most guidance indicates first infant formula is suitable throughout the first year.
Responsive bottle feeding — paced, following the baby's cues rather than encouraging finishing the bottle — is associated with better self-regulation and is worth knowing about.
Combination feeding
Frequently treated as a failure state and it's a legitimate approach that many families use successfully.
Practical points: introducing bottles can affect supply if breastfeeds are replaced rather than supplemented, so timing and frequency matter. Expressing to maintain supply is an option. And the transition is easier for some babies than others.
Support for combination feeding is patchier than for either alternative, which is unhelpful given how many people do it.
What actually helps
If you want to breastfeed: get skilled support early, before problems become entrenched. Lactation consultants, specialist midwives and peer support all exist. Pain is a signal that something is wrong and warrants assessment rather than endurance.
If you're formula feeding: follow preparation guidance carefully, use responsive feeding, and disregard marketing about premium products.
Either way: the emotional weight attached to this decision is disproportionate to the difference it makes in most high-income contexts, and a parent who is coping is more valuable to a baby than any feeding method.
General information only. Discuss feeding with your midwife, health visitor or doctor, and follow current formula preparation guidance from your national health authority.
Returning to work
A practical juncture where feeding plans frequently change and where information is thin.
Expressing at work is a legal right in many jurisdictions, generally with requirements on employers to provide facilities and breaks, and awareness of those rights is low on both sides.
Practically it requires a pump, somewhere private that is not a toilet, refrigeration, and time. Establishing the arrangement before returning rather than improvising afterwards makes it considerably more likely to work.
Many people move to combination feeding at this point, which is a legitimate arrangement rather than a failure, and having decided in advance rather than under pressure makes the transition easier.