What helps in a family health argument, since facts alone rarely win

Key takeaways

• In a field experiment on immigration, canvassing conversations built on arguments alone didn’t change attitudes, while adding a nonjudgmental exchange of personal stories produced small shifts lasting at least four months¹.
• The feared “backfire effect” is rare: across 52 issues and more than 10,100 people, none of the factual corrections tested backfired².
• Counselors trained in motivational interviewing ask permission before sharing information and reflect back more than they question, an approach backed by 119 studies showing small but lasting effects³⁴.
• A skeptical relative may have a point if you’re replacing proven treatment, mixing herbs with prescription drugs, pregnant, facing surgery or treating a child⁹¹².
• Neutral sources such as NIH fact sheets give both of you a place to look things up together¹⁴¹⁵.

In experiments published in 2020, political scientists Joshua Kalla and David Broockman studied face-to-face conversations between canvassers and 6,869 voters in seven U.S. locations¹. The topics were touchy: attitudes toward unauthorized immigrants and transgender people.

In the first experiment, some conversations relied on arguments alone. Those changed nothing¹. When canvassers kept everything else the same but also traded personal stories without judgment, attitudes moved. The change was small, but it lasted at least four months¹.

Those voters weren’t discussing elderberry or acupuncture. Still, the lesson carries over to the kitchen table. When people disagree about something tied to who they are, a stack of facts rarely settles it.

Maybe you’ve found something that helps you: a new way of eating, an herb, a practitioner who finally listened. Then your sister rolls her eyes, or your dad forwards an article about “unproven remedies.” You want to be understood, not to convert anyone.

You’re far from alone in a mixed family. In a 2017 Pew Research Center report, about half of U.S. adults said they had tried alternative medicine at some point, and about half said they never had⁸. This guide covers what research says about talking across that gap, scripts for common moments, and the times your skeptic’s worry deserves a real hearing.

Why a pile of facts makes people dig in

Counselors have a name for the urge that starts many family fights. The federal Substance Abuse and Mental Health Services Administration (SAMHSA) calls it the “righting reflex.” It’s the natural impulse to jump in and steer someone toward a change³.

SAMHSA’s guide for counselors warns that this impulse often has the opposite effect. Push someone toward change, and they start arguing for staying put³. The guide treats that pushback as a reaction to the counselor’s approach in the moment, not a flaw in the person³.

The reflex runs in both directions. Your relative’s lecture about “real medicine” sets it off in you. Your list of study links sets it off in them.

People also tend to overrate how well they understand complex issues. In a 2013 study in Psychological Science, people who explained step by step how a policy would work realized they knew less than they thought, and their views grew more moderate⁷. Simply listing reasons for their position didn’t have that effect⁷.

That study looked at politics, not health. Still, it suggests a useful question for any family debate. Instead of “Why do you believe that?” try “How do you think it works?” Then ask yourself the same thing about your own remedy.

The “backfire effect” is rarer than you’ve heard

You may have heard that correcting someone makes them cling to a false idea even harder. Researchers called this the backfire effect, and earlier studies suggested it was a real risk².

Then political scientists Thomas Wood and Ethan Porter put it to a hard test. Across five experiments with more than 10,100 people and 52 divisive issues, they found no correction that backfired². People generally moved toward accurate information, even when it cut against their political loyalties².

That’s good news for both sides of your family. A fair point usually won’t make someone dig in further. But accepting a fact is not the same as changing a habit or a value. In the Kalla and Broockman immigration experiment, arguments alone didn’t shift attitudes at all¹.

So the goal is to share them in a way the other person can take in.

What helps: listening, stories and shared values

Several lines of research point the same way. None of them studied families arguing about natural health, so treat what follows as well-grounded guesses, not guarantees.

Listening lowers defenses. In four lab experiments published in 2017, people who talked to an empathic, nonjudgmental listener felt less social anxiety and became less defensive. Their views on the topic grew less extreme and more nuanced⁵.

Values beat volume. In six studies, Matthew Feinberg and Robb Willer found that arguments framed around the listener’s moral values persuaded better than arguments built on the speaker’s own values⁶. They tested political issues such as same-sex marriage and military spending⁶. With a relative who prizes science, that could mean talking about what the research shows and how you’re staying safe, rather than tradition or purity.

Asking permission opens the door. Motivational interviewing is a counseling style built on partnership, acceptance and compassion³. Its core skills are open questions, affirmations, reflections and summaries, and SAMHSA suggests two or three reflections for every question³. Before sharing information, counselors ask whether the person wants it, offer it in small pieces, and then ask what the person makes of it³.

A 2010 analysis of 119 studies found that motivational interviewing produced small but durable benefits compared with weak comparison groups. The outcomes included smoking, drinking, drug use, diet and exercise⁴. Against other specific treatments, it did about as well, not better.

Approach	Evidence rating	What the research shows
Arguments and facts alone	Evidence says no (for changing attitudes)	In a large field experiment on immigration, argument-only conversations didn’t change attitudes1.
Fear that corrections backfire	Evidence says no	No backfire across 52 issues and more than 10,100 people2.
Swapping personal stories without judgment	Promising but early	Small effects in three field experiments on political topics; in the first, they lasted at least four months1.
High-quality listening	Promising but early	Less defensiveness and less extreme views in four lab experiments5.
Framing your point in the other person’s values	Promising but early	More persuasive across six studies on political issues6.
Motivational interviewing by trained counselors	Strong evidence (small effects)	119 studies show modest, lasting benefits across many health behaviors4.

One more point keeps this honest. SAMHSA’s guide says, “Motivation for change is evoked from, not given to, the client”³. These skills exist to draw out a person’s own reasons, not to sneak your conclusion past their guard. Use them to understand, and stay open to being persuaded yourself.

When your skeptic may have a point

Natural health values honesty and prevention. Sometimes the most honest reply to a worried relative is “You’re right to ask.”

The clearest case is replacing proven treatment. A study in the Journal of the National Cancer Institute, published online in 2017, compared 280 people who chose only alternative medicine for curable breast, prostate, lung or colorectal cancer with 560 similar patients who got standard care. The alternative-only group had 2.5 times the risk of death⁹. That’s a reason to use natural approaches alongside proven care, not instead of it.

Here are other worries that deserve real weight.

If your relative worries that…	Why it deserves a hearing	A respectful next step
An herb could clash with your medicine	St. John’s wort can make birth control pills, some antidepressants, HIV drugs, warfarin and the transplant drug cyclosporine work less well. Goldenseal lowered metformin levels about 25% in a study of healthy adults10.	Ask a pharmacist to check every product you take.
You’re giving remedies to a child	Children’s small size and developing organs make them more prone to bad reactions11.	Get an accurate diagnosis from a licensed provider first, and don’t delay prescribed care11.
You’re pregnant or breastfeeding	Many supplements have never been tested in pregnant or nursing women12.	Talk with your prenatal provider before starting anything new.
You have surgery coming up	Some supplements raise bleeding risk or change how you respond to anesthesia12.	Tell your surgical team as far ahead as you can12.
A product may not contain what it says	The FDA has found prescription drugs, such as warfarin and phenytoin, in products sold as supplements12.	Be most careful with weight-loss, sexual-improvement and bodybuilding products12.

Supplements also cause about 23,000 U.S. emergency room visits a year, NCCIH reported in 2017, and about one in five involves a child, usually one who got into vitamins or minerals without an adult¹¹. If remedies are part of your home, store them out of children’s reach¹¹.

A six-step conversation plan

Use this plan for any serious talk, whether you’re the one being doubted or the one with doubts.

1. Choose the moment. Skip the crowded holiday table. Ask for 20 minutes, one on one, when neither of you is rushed.
2. Name a modest goal. Say it out loud: “I’m not trying to change your mind. I’d like us to understand each other.”
3. Start with their worry. Ask an open question, such as “What concerns you most about this?” Reflect back what you hear two or three times before you respond³.
4. Tell your story, not a stack of links. Share what you were dealing with, what you tried and what changed. In the field experiments, personal stories moved people where arguments didn’t¹.
5. Ask before you inform. “Would it help if I showed you what the NIH says about this?” Afterward, ask what they make of it³.
6. Agree on one shared source and one next step. Look the product up together, or agree that you’ll bring the bottle to your next checkup.

Scripts for three common moments

These are examples to adapt, not lines to memorize. Only say what’s true for you.

At a holiday dinner, a relative jokes about your supplements.
“I know it looks odd from the outside. I’m happy to tell you why I take it, just maybe not over the turkey. Can we talk after dinner?”

Later, try: “What worries you about it?” Then reflect: “So you’re concerned I’m wasting money, and maybe skipping the doctor. That’s fair to wonder about.”

A relative questions how you care for your kids.
“I can tell you love them, and I’m glad you look out for them.”

“Here’s what we do: anything beyond a mild cold goes to their pediatrician, and she knows about the remedies we use. Is there something specific that’s worrying you?”

Your partner is uneasy about something you take.
“I don’t want to brush off your worry. Would you be willing to look it up with me on the NIH site? If it interacts with my blood pressure medicine, I want to know too.”

If that doesn’t settle it: “Would you come to my next appointment and ask the doctor yourself?”

Each script does the same three things. It slows the moment down, names the other person’s concern in their terms, and offers a concrete next step you can take together.

Find sources you can both trust

Arguments stall when each side trusts different sources. A common reference point helps.

The NIH Office of Dietary Supplements publishes fact sheets on vitamins, minerals, herbs and probiotics. Many come in both a consumer version and a health-professional version, in English and Spanish¹⁵.

The National Center for Complementary and Integrative Health (NCCIH) gives both sides something. Its “Natural Doesn’t Necessarily Mean Safer, or Better” page notes that aspirin and morphine both came from plants. The same page reports that several major studies found no evidence that echinacea helps colds, and that ginkgo doesn’t prevent or slow dementia, a conclusion backed by one study of more than 3,000 older adults¹⁴. A source that credits nature and also reports negative results is hard for either of you to dismiss.

Agree on one rule before you look anything up. If the evidence is thin, you’ll both accept “not proven yet.” That’s different from “proven useless,” and it’s different from “proven to work.”

Bring in your clinician, and know where your line is

Many people keep natural health choices to themselves. A 2019 review found that only about a third of people using herbs, vitamins or other supplements told their medical providers¹³. Common reasons included that the provider never asked, fear of disapproval and a belief that it didn’t matter¹³. Those are the same feelings that make family talks hard.

Telling your clinician helps on both fronts. It protects you from interactions, which the NIH’s complementary health center flags as a real risk¹⁰. It also gives you a calm, true answer for a worried relative: “My doctor knows what I take.”

You’re an adult, and the choices about your body are yours. You can say, “I’ve heard your concern, and I’ll think about it. I’d rather not debate it every time we visit.” Respect runs both ways, so your relative also gets to decline the remedy you love.

Call in help when the stakes are high. If a family member is dropping insulin, cancer treatment or a seizure medicine for an unproven remedy, encourage a talk with their clinician right away. Call 911 in an emergency. If a supplement seems to cause side effects, stop it, call your provider and report it through the HHS Safety Reporting Portal¹².

At its best, natural health stands for self-knowledge, honesty and respect for each person’s path. Those same values make for a good family conversation: listen first, be open about what you take, admit what isn’t proven, and let the other person keep their dignity.

Questions readers ask

The bottom line

Facts matter, and they rarely backfire, but on their own they seldom change what someone believes about health or identity. Listening, sharing your own story, asking before you inform and framing things in the other person’s values give a hard conversation a better chance.

Stay open in both directions. When your skeptic raises interactions, pregnancy, surgery, children or skipping proven treatment, they may be protecting you. Hearing that well is part of caring for your health.

Keep exploring: disagreeing with family about health and family health disagreements.

Related reading

• What happens when you don’t tell your doctor about supplements
• What to say when a doctor isn’t taking you seriously
• How medical decisions are supposed to get made with you
• What complementary care means, and why the word misleads

Sources

1. Kalla JL, Broockman DE. “Reducing Exclusionary Attitudes through Interpersonal Conversation: Evidence from Three Field Experiments.” American Political Science Review, 2020. cambridge.org
2. Wood T, Porter E. “The Elusive Backfire Effect: Mass Attitudes’ Steadfast Factual Adherence.” Political Behavior, 2019. link.springer.com
3. Substance Abuse and Mental Health Services Administration. “Chapter 3: Motivational Interviewing as a Counseling Style.” In Enhancing Motivation for Change in Substance Use Disorder Treatment (TIP 35), updated 2019. ncbi.nlm.nih.gov
4. Lundahl BW, Kunz C, Brownell C, Tollefson D, Burke BL. “A Meta-Analysis of Motivational Interviewing: Twenty-Five Years of Empirical Studies.” Research on Social Work Practice, 2010. doi.org
5. Itzchakov G, Kluger AN, Castro DR. “I Am Aware of My Inconsistencies but Can Tolerate Them: The Effect of High Quality Listening on Speakers’ Attitude Ambivalence.” Personality and Social Psychology Bulletin, 2017. pubmed.ncbi.nlm.nih.gov
6. Feinberg M, Willer R. “From Gulf to Bridge: When Do Moral Arguments Facilitate Political Influence?” Personality and Social Psychology Bulletin, 2015. pubmed.ncbi.nlm.nih.gov
7. Fernbach PM, Rogers T, Fox CR, Sloman SA. “Political Extremism Is Supported by an Illusion of Understanding.” Psychological Science, 2013. journals.sagepub.com
8. Pew Research Center. “Americans’ Health Care Behaviors and Use of Conventional and Alternative Medicine.” 2017. pewresearch.org
9. Johnson SB, Park HS, Gross CP, Yu JB. “Use of Alternative Medicine for Cancer and Its Impact on Survival.” Journal of the National Cancer Institute, 2018 (online 2017). academic.oup.com
10. National Center for Complementary and Integrative Health. “Some Supplements May Decrease the Effects of Medications.” Know the Science: How Medications and Supplements Can Interact. nccih.nih.gov
11. National Center for Complementary and Integrative Health. “Children and the Use of Complementary Health Approaches.” 2017. nccih.nih.gov
12. National Center for Complementary and Integrative Health. “Using Dietary Supplements Wisely.” 2019. nccih.nih.gov
13. Foley H, Steel A, Cramer H, Wardle J, Adams J. “Disclosure of complementary medicine use to medical providers: a systematic review and meta-analysis.” Scientific Reports, 2019. nature.com
14. National Center for Complementary and Integrative Health. “Natural Doesn’t Necessarily Mean Safer, or Better.” Know the Science. nccih.nih.gov
15. National Institutes of Health, Office of Dietary Supplements. “Dietary Supplement Fact Sheets.” ods.od.nih.gov