Sources & Evidence Standards
Boobs for Babies exists to provide mothers with information they can trust – not just about breastfeeding, but about pregnancy, birth, postpartum recovery, emotional health, feeding, and the many ways those experiences overlap.
That means taking evidence seriously. It also means being honest about what evidence can and cannot tell us.
Research is rarely a collection of simple, final answers. Studies have limitations. Findings can conflict. Recommendations change as new evidence emerges. Human health and human experience are influenced by countless factors that cannot always be neatly separated or controlled.
At Boobs for Babies, we look at research as part of a larger body of evidence rather than treating a single study, statistic, or expert opinion as the final word. Whenever possible, we consider the quality of the evidence, how consistently findings appear across research, the limitations of individual studies, and whether the conclusions being drawn are actually supported by the data.
Our goal is not to tell mothers what they should believe. It is to give them accurate information, meaningful context, and an honest picture of what is known, what is uncertain, and what may still be changing – so they can make informed decisions for themselves and their families.
Evidence Should Match the Question
Not every question about pregnancy, birth, postpartum, emotional health, or feeding can – or should – be answered with the same kind of research.
If we are looking at a clinical question, such as the effectiveness of a treatment or intervention, randomized controlled trials, systematic reviews, clinical guidelines, and other forms of clinical evidence may provide the strongest information available.
Other questions are different. If we want to understand how women experience the transition to motherhood, changes in identity, loss of autonomy, loneliness, breastfeeding challenges, or the emotional impact of birth and postpartum life, qualitative research can provide information that a clinical trial simply cannot. Interviews, longitudinal studies, observational research, surveys, and other study designs can help researchers understand experiences that cannot realistically be reproduced or controlled in a laboratory.
The type of evidence matters, but so does the question the researchers were trying to answer. A study should be evaluated based on what its design can reasonably tell us – not simply ranked as “good” or “bad” because of the type of research it is.
This also means distinguishing between evidence about what happens, evidence about why it may happen, and evidence about how people experience it. Those are different questions, and they may require different kinds of research.
At Boobs for Babies, we try to use the strongest and most appropriate evidence available for the question being discussed, while being clear about the limitations that come with it.
The Sources We Prioritize
Where information comes from matters. Whenever possible, Boobs for Babies relies on original research, systematic reviews and meta-analyses, evidence-based clinical guidelines, and established medical, scientific, and public-health organizations rather than articles that simply summarize or repeat someone else’s claims.
Depending on the subject, sources may include organizations such as the American College of Obstetricians and Gynecologists (ACOG), American Academy of Pediatrics (AAP), Academy of Breastfeeding Medicine (ABM), Centers for Disease Control and Prevention (CDC), World Health Organization (WHO), National Institutes of Health (NIH), National Library of Medicine (NLM), and other professional organizations, government agencies, academic institutions, and peer-reviewed journals.
But a respected name does not automatically make every statement correct, complete, or beyond question.
Guidance from respected medical and public-health organizations carries important weight, but the name attached to a recommendation does not make it immune to limitations, changing evidence, institutional priorities, or reasonable scientific disagreement.
Recommendations are created by people interpreting evidence. Different organizations may weigh benefits and risks differently, emphasize different outcomes, consider different populations, or reach different conclusions from an evidence base that is incomplete or evolving. Guidelines may also consider practical concerns such as feasibility, access, public-health priorities, and implementation – factors that can be important while still being different from the underlying scientific question itself.
When possible, we look beyond the recommendation to the evidence supporting it. We consider whether multiple high-quality sources reach similar conclusions, whether newer research changes the picture, and whether disagreement exists among credible researchers or professional organizations.
The same scrutiny applies to sources that support a position we already agree with. Evidence does not become stronger because we like the conclusion, and conflicting evidence does not become irrelevant because we do not.
Our goal is not to find the source that tells us what we want to hear. It is to understand the evidence well enough to represent it fairly to you.
How We Read Research
A published study is evidence, but publication alone does not tell us how much confidence to place in its conclusions. When we use research at Boobs for Babies, we try to look beyond the headline and ask what the study actually found, how it was designed, who was studied, what its limitations were, and whether its conclusions fit within the larger body of evidence.
That means considering things such as study design, sample size, the population being studied, how outcomes were measured, whether important variables were accounted for, potential conflicts of interest, and whether other research has produced similar findings.
We also pay attention to the difference between statistical significance and meaningful significance. A measurable difference between two groups may be statistically real while still being very small in practical terms. Numbers deserve context.
The Third-Variable Problem
Human lives are complicated. When two things occur together, it does not necessarily mean that one caused the other. Sometimes a third factor – or many other factors – may influence both.
For example, if research finds that one group of mothers or babies has better outcomes than another, the difference may be related to the factor being studied. But the groups may also differ in income, education, access to healthcare, family support, underlying health, parental leave, stress, nutrition, environment, or many other ways that could influence the outcome.
Researchers can use study design and statistical methods to account for known confounding variables, but observational research involving real human lives can rarely eliminate every possible difference between groups. Some important variables may not have been measured at all.
This does not make the research useless. It changes what we can reasonably conclude from it.
Correlation is not the same as causation. An association between two things can be important and worth investigating without proving that one directly caused the other. We try to be particularly careful when research findings are translated into headlines or advice that make stronger causal claims than the study itself can support.
We also consider whether a finding has been replicated. One study can raise an important question or contribute valuable evidence, but rarely should a single study settle a complicated subject on its own. Confidence becomes stronger when findings appear across multiple well-designed studies, different populations, and different research methods.
This is why Boobs for Babies generally looks at research as part of a larger whole. Individual studies matter, but so do patterns across studies, conflicting findings, methodological limitations, biological plausibility, real-world context, and the questions that research has not yet answered.
When the Evidence Isn’t Clear
Sometimes the evidence gives us a strong and consistent answer. Sometimes it does not.
Research may be limited, studies may reach conflicting conclusions, the available studies may be small or poorly designed, or a subject simply may not have been studied enough yet. In those situations, Boobs for Babies will not turn uncertainty into certainty just to give a cleaner answer.
We try to distinguish between evidence that is strong and consistent, evidence that is promising but still developing, evidence that is mixed or conflicting, and questions for which there simply is not enough good research to draw a confident conclusion.
Absence of Evidence Is Not Evidence of Absence
If research has not demonstrated that something happens, that does not automatically prove that it does not happen. Sometimes the question has not been studied adequately, the available studies were not designed to detect the effect, or the evidence is simply too limited to know.
The reverse matters, too. A lack of evidence showing harm does not automatically prove that something is safe. What matters is what has actually been studied, how well it has been studied, and what conclusions the available evidence can reasonably support.
Scientific understanding also changes. New studies can strengthen an existing conclusion, challenge it, reveal important exceptions, or show that an earlier recommendation was based on an incomplete picture. Changing guidance does not necessarily mean that science failed. Often, it means that the evidence improved.
When credible experts or organizations disagree, we try to represent that disagreement rather than quietly choosing one position and presenting it as settled fact. When evidence is preliminary, we call it preliminary. When an answer depends heavily on individual circumstances, we say that too.
We believe readers deserve to know where confidence ends and uncertainty begins. You should not have to read the original research yourself to discover that a confident-sounding health claim was actually based on limited, mixed, or uncertain evidence.
Lived Experience Has a Place Here, Too
Research matters deeply at Boobs for Babies. So does lived experience.
Pregnancy, birth, breastfeeding, postpartum recovery, and motherhood are not experienced as data points. They happen to real women, in real bodies, families, relationships, homes, and circumstances. Research can help us understand patterns across those experiences, but it cannot capture every part of what it feels like to live through them.
Personal stories can reveal questions worth asking, put research into human context, help women recognize experiences they may not have had words for, and remind us that an outcome measured on paper may have a much more complicated meaning in someone’s actual life.
But lived experience and scientific evidence are not interchangeable.
A personal story cannot establish cause and effect, determine how common an experience is, or tell us what will happen to another person. In the same way, population-level research cannot tell an individual woman exactly what her own experience will be.
When personal experience appears alongside research on Boobs for Babies, we try to make the distinction clear. We do not use an anecdote as proof of a scientific claim, and we do not dismiss meaningful human experiences simply because they cannot be reduced to a statistic.
Both can contribute to understanding. They simply contribute in different ways.
The Mother Side: Beyond the Research
Some parts of Boobs for Babies are intentionally personal.
The Mother Side: Beyond the Research is where Natalie shares reflections, experiences, and the parts of pregnancy, birth, breastfeeding, postpartum, and motherhood that do not fit neatly into an evidence-based article.
These pieces may be informed by research, but they are not presented as research. When Natalie writes from her own experience, it represents exactly that – one woman’s experience, offered because personal stories can create connection, recognition, and conversation without needing to become universal claims.
Keeping this space distinct from our evidence-based educational content allows us to make room for both: careful research when we are making factual claims, and honest personal experience when the purpose is to tell the human side of the story.
How We Handle Products and Commercial Claims
Pregnancy, breastfeeding, postpartum, and baby care come with an enormous marketplace of products – and an equally enormous number of claims about what those products can do.
When a manufacturer says a product increases milk supply, improves recovery, supports infant development, balances hormones, prevents a problem, or produces another health-related benefit, we do not treat the marketing claim itself as evidence.
Whenever possible, we look for research on the underlying ingredient, intervention, or product; consider the quality and independence of that research; and pay attention to whether the evidence actually supports the specific claim being made.
Who Funded the Research?
Industry-funded research is not automatically unreliable. Companies often fund studies because they have the resources and incentive to study their own products, and well-designed industry-funded research can still provide useful evidence.
But funding sources and potential conflicts of interest matter. We consider who funded a study, whether researchers or authors have financial relationships with the product or industry involved, and whether independent research reaches similar conclusions.
A conflict of interest does not automatically invalidate a finding. It is information that belongs in the larger picture.
We are also careful about claims that stretch beyond the research. Evidence that an ingredient affects a biological process, for example, does not necessarily prove that taking a product containing that ingredient will produce a meaningful health benefit in real life.
The same standards apply when Boobs for Babies recommends or links to a product. Our Products We Love recommendations include affiliate links, which means Boobs for Babies may earn a commission when you purchase through those links, at no additional cost to you.
Affiliate relationships do not determine what we say the evidence shows or which health claims we consider supported. Products are recommended because we believe they may be genuinely useful – not because an affiliate relationship turns a product into an evidence-based necessity.
Sometimes a product may simply be useful, comfortable, convenient, or something we genuinely like. We can say that without inventing a scientific reason that you need it.
We believe financial relationships should be easy for readers to recognize. Affiliate relationships are disclosed so you can consider that information alongside our recommendation.
Breastfeeding, Formula, and Feeding Decisions
Boobs for Babies began with breastfeeding, and supporting breastfeeding remains an important part of what we do. Human milk is biologically complex, breastfeeding has well-established benefits, and mothers who want to breastfeed deserve accurate information and meaningful support in doing so.
That does not require pretending that breastfeeding is always possible, uncomplicated, or the right choice in every circumstance.
Infant formula is an important and sometimes lifesaving source of nutrition. Families may use formula because of medical circumstances, milk supply, medication, mental or physical health, work, access to support, personal choice, or countless combinations of factors that cannot be understood from the outside.
When we discuss breastfeeding outcomes, we also try to be careful about what the research can actually establish. Feeding studies are particularly vulnerable to confounding because families who breastfeed and families who formula feed can differ in many ways beyond how their babies are fed. Socioeconomic circumstances, education, healthcare access, parental leave, maternal health, family support, smoking, and other factors may influence both feeding decisions and later outcomes.
Researchers use statistical methods and study designs to try to account for these differences, and some breastfeeding outcomes are supported more strongly than others. But we do not believe every association found in feeding research should automatically be presented as a benefit caused by breast milk or breastfeeding.
At the same time, the existence of confounding does not mean breastfeeding research should simply be dismissed. It means individual findings should be interpreted according to the strength and limitations of the evidence and considered as part of the larger body of research.
Evidence Should Inform, Not Shame
Accurate information about breastfeeding benefits should not require exaggerating the evidence, frightening mothers, or treating formula use as a failure. Likewise, supporting families who use formula should not require minimizing what is known about human milk or the value of breastfeeding.
Mothers deserve the full picture – including benefits, limitations, uncertainty, practical realities, and alternatives – without having evidence turned into a judgment about whether they are a good mother.
Our job is to explain the evidence as accurately as we can. Your job is not to prove your love for your baby through a feeding method.
Educational Information Is Not Individualized Medical Care
Boobs for Babies provides educational information. It cannot know everything that a healthcare professional caring for you or your baby may know about your individual circumstances.
Research usually tells us something about groups of people. Medical decisions happen to individuals. Your health history, pregnancy or birth circumstances, medications, symptoms, baby’s health, feeding history, personal priorities, and many other factors can change what information means in your particular situation.
When an article discusses a condition, symptom, treatment, medication, supplement, feeding concern, or other health-related subject, it is intended to help you understand the topic and have better-informed conversations with your healthcare team – not to diagnose a problem or replace individualized medical care.
We also believe “talk to your doctor” should not be used as a substitute for providing useful information. When reliable evidence is available, we want to explain it clearly enough that you can understand the issue, know what questions may be worth asking, and participate meaningfully in decisions about your own care or your baby’s care.
There are also times when general information is not enough. Symptoms that may indicate an urgent or serious medical problem deserve appropriate medical evaluation rather than an answer from an article on the internet.
Corrections, Updates & Evolving Evidence
Science changes because knowledge changes. New research may strengthen what we already know, reveal important limitations, challenge an existing conclusion, or change how experts understand a subject altogether.
Boobs for Babies articles are not intended to be permanent snapshots of what was believed on the day they were published. We may revisit and update content as new evidence, recommendations, or better sources become available.
We also make mistakes. If we discover that something on Boobs for Babies is inaccurate, misleading, poorly supported, or missing important context, our goal is to correct it rather than defend it simply because we already published it.
Not every update means the previous information was wrong. Sometimes new research adds nuance, terminology changes, professional recommendations are revised, links or resources become outdated, or stronger evidence becomes available. In those cases, we may update an article to better reflect the current understanding of the subject.
When a subject is evolving quickly or the evidence remains unsettled, we try to make that uncertainty visible rather than allowing an older article to appear more definitive than the evidence warrants.
If You Think We Got Something Wrong
We welcome thoughtful corrections. If you notice a factual error, outdated recommendation, broken source, misrepresented study, or important evidence we may have missed, we want to know about it.
A correction is not an attack on the work. It is an opportunity to make the information better.
Our responsibility is not to always have been right. It is to be willing to keep looking, keep learning, and correct the record when better information gives us a reason to do so.
Our Promise to Readers
Boobs for Babies was created because mothers deserve information that respects both the evidence and the complexity of the lives they are actually living.
Pregnancy, birth, postpartum recovery, emotional health, breastfeeding, and feeding do not happen independently of one another. A recommendation that makes sense on paper may look very different when placed inside a real woman’s body, family, circumstances, resources, priorities, and limits.
We believe good information should help you understand that bigger picture.
We will try to distinguish strong evidence from emerging evidence, association from causation, research from opinion, and population-level findings from individual outcomes. We will tell you when credible sources disagree, when important limitations exist, and when the most accurate answer is that we simply do not know yet.
We will use respected medical and scientific sources without treating authority as infallible. We will consider research that challenges our own assumptions. We will acknowledge conflicts of interest, including our own, and we will correct our work when better information gives us reason to.
We will make room for lived experience without presenting it as scientific proof. We will talk honestly about breastfeeding without using its benefits to shame mothers who use formula. We will discuss difficult parts of pregnancy, birth, postpartum, and motherhood without treating normal human struggle as personal failure.
Most importantly, we will remember that there is a person on the other side of the information.
You deserve more than a statistic, a frightening headline, a perfect-mother standard, or an instruction to simply “ask your doctor.” You deserve enough information and context to understand the questions, weigh the evidence, ask better ones, and make informed decisions for yourself and your family.